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Karim PL, Aryani IA, Nugroho SA, Saleh I, Dewi L, Kurniawati Y, Fitriani F. Treponema Pallidum rapid syphilis compared diagnostic algorithm syphilis in men who have sex with men (MSM). Int J STD AIDS 2024; 35:543-549. [PMID: 38478741 DOI: 10.1177/09564624241239102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2024]
Abstract
BACKGROUND Syphilis infection can be asymptomatic and difficult to diagnose based on clinical symptoms. Early detection and treatment are critical for preventing and controlling syphilis as well as long-term serious complications. A serological examination based on the diagnostic algorithm was used to confirm the diagnosis of syphilis. Syphilis is frequent in high-risk groups, such as men who have sex with men (MSM). Treponema pallidum (TP) rapid can be used for early syphilis detection. The diagnostic value of TP rapid with diagnostic algorithm (RPR-TPHA) utilizing whole blood in MSM should be studied. OBJECTIVES To determine the diagnostic value of TP rapid syphilis test compared to a diagnostic algorithm (RPR-TPHA) among MSM. METHODS A diagnostic test with a cross-sectional design at Dr Mohammad Hoesin Palembang General Hospital from November 2022 to January 2023. The sampling method was consecutive sampling with a total sample of 83 MSM based on inclusion and exclusion criteria. All samples were tested for RPR, TPHA, and TP rapid. The diagnostic value of TP rapid was evaluated with RPR-TPHA as a diagnostic algorithm for syphilis. RESULTS The sensitivity and specificity value of the TP rapid compare diagnostic algorithm as gold standard were 95.8% and 96.6% respectively. Other metrics: positive predictive value (PPV) 92%, negative predictive value (NPV) 98%, positive likelihood ratio (PLR) 28.27, negative likelihood ratio (NLR) 0.04, accuracy 96% and AUC 0.962. CONCLUSION The TP rapid test has a high diagnostic value and can be used to establish an early diagnosis of syphilis in MSM.
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Affiliation(s)
- Putri L Karim
- Department of Dermatology, Venereology and Aesthetics, Medical Faculty of Sriwijaya University, Dr Mohammad Hoesin General Hospital, Palembang, Indonesia
| | - Inda A Aryani
- Department of Dermatology, Venereology and Aesthetics, Medical Faculty of Sriwijaya University, Dr Mohammad Hoesin General Hospital, Palembang, Indonesia
| | - Suroso A Nugroho
- Department of Dermatology, Venereology and Aesthetics, Medical Faculty of Sriwijaya University, Dr Mohammad Hoesin General Hospital, Palembang, Indonesia
| | - Irsan Saleh
- Medical Faculty of Sriwijaya University, Palembang, Indonesia
| | - Lisa Dewi
- Regional Health Lab (BBLK), Palembang, Indonesia
| | - Yuli Kurniawati
- Department of Dermatology, Venereology and Aesthetics, Medical Faculty of Sriwijaya University, Dr Mohammad Hoesin General Hospital, Palembang, Indonesia
| | - Fitriani Fitriani
- Department of Dermatology, Venereology and Aesthetics, Medical Faculty of Sriwijaya University, Dr Mohammad Hoesin General Hospital, Palembang, Indonesia
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Sanchez-Gendriz I, Carvalho DDA, Galvão-Lima LJ, Sales-Moioli AIL, Brito T, Fernandes F, Henriques J, Lima T, Guedes LA, Cruz AS, Morais AHF, Santos JPQ, Arrais E, Coutinho KD, Machado GM, Cunha-Oliveira A, Dos Reis Vale Gomes CA, Valentim RAM. Digital dual test syphilis/HIV detection based on Fourier Descriptors of Cyclic Voltammetry curves. Comput Biol Med 2024; 174:108454. [PMID: 38608326 DOI: 10.1016/j.compbiomed.2024.108454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 03/10/2024] [Accepted: 04/07/2024] [Indexed: 04/14/2024]
Abstract
BACKGROUND Effective and timely detection is vital for mitigating the severe impacts of Sexually Transmitted Infections (STI), including syphilis and HIV. Cyclic Voltammetry (CV) sensors have shown promise as diagnostic tools for these STI, offering a pathway towards cost-effective solutions in primary health care settings. OBJECTIVE This study aims to pioneer the use of Fourier Descriptors (FDs) in analyzing CV curves as 2D closed contours, targeting the simultaneous detection of syphilis and HIV. METHODS Raw CV signals are filtered, resampled, and transformed into 2D closed contours for FD extraction. Essential shape characteristics are captured through selected coefficients. A complementary geometrical analysis further extracts features like curve areas and principal axes lengths from CV curves. A Mahalanobis Distance Classifier is employed for differentiation between patient and control groups. RESULTS The evaluation of the proposed method revealed promising results with classification performance metrics such as Accuracy and F1-Score consistently achieving values rounded to 0.95 for syphilis and 0.90 for HIV. These results underscore the potential efficacy of the proposed approach in differentiating between patient and control samples for STI detection. CONCLUSION By integrating principles from biosensors, signal processing, image processing, machine learning, and medical diagnostics, this study presents a comprehensive approach to enhance the detection of both syphilis and HIV. This setts the stage for advanced and accessible STI diagnostic solutions.
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Affiliation(s)
- Ignacio Sanchez-Gendriz
- Laboratory of Technological Innovation in Health (LAIS), Hospital Universitário Onofre Lopes, Federal University of Rio Grande do Norte (UFRN), Natal/RN, Brazil.
| | - Dionísio D A Carvalho
- Laboratory of Technological Innovation in Health (LAIS), Hospital Universitário Onofre Lopes, Federal University of Rio Grande do Norte (UFRN), Natal/RN, Brazil
| | - Leonardo J Galvão-Lima
- Laboratory of Technological Innovation in Health (LAIS), Hospital Universitário Onofre Lopes, Federal University of Rio Grande do Norte (UFRN), Natal/RN, Brazil
| | - Ana Isabela Lopes Sales-Moioli
- Laboratory of Technological Innovation in Health (LAIS), Hospital Universitário Onofre Lopes, Federal University of Rio Grande do Norte (UFRN), Natal/RN, Brazil
| | - Talita Brito
- Laboratory of Technological Innovation in Health (LAIS), Hospital Universitário Onofre Lopes, Federal University of Rio Grande do Norte (UFRN), Natal/RN, Brazil
| | - Felipe Fernandes
- Laboratory of Technological Innovation in Health (LAIS), Hospital Universitário Onofre Lopes, Federal University of Rio Grande do Norte (UFRN), Natal/RN, Brazil
| | - Jorge Henriques
- Department of Informatics Engineering, Center for Informatics and Systems of the University of Coimbra, Universidade de Coimbra, Coimbra, Portugal
| | - Thaisa Lima
- Laboratory of Technological Innovation in Health (LAIS), Hospital Universitário Onofre Lopes, Federal University of Rio Grande do Norte (UFRN), Natal/RN, Brazil; Ministry of Health, Esplanada dos Ministérios, Brasília, Brazil
| | - Luiz Affonso Guedes
- Department of Computer Engineering and Automation, Federal University of Rio Grande do Norte (UFRN), Natal/RN, Brazil
| | - Agnaldo S Cruz
- Laboratory of Technological Innovation in Health (LAIS), Hospital Universitário Onofre Lopes, Federal University of Rio Grande do Norte (UFRN), Natal/RN, Brazil
| | - Antonio H F Morais
- Laboratory of Technological Innovation in Health (LAIS), Hospital Universitário Onofre Lopes, Federal University of Rio Grande do Norte (UFRN), Natal/RN, Brazil; Advanced Nucleus of Technological Innovation (NAVI), Federal Institute of Rio Grande do Norte, Natal/RN, Brazil
| | - João Paulo Q Santos
- Laboratory of Technological Innovation in Health (LAIS), Hospital Universitário Onofre Lopes, Federal University of Rio Grande do Norte (UFRN), Natal/RN, Brazil; Advanced Nucleus of Technological Innovation (NAVI), Federal Institute of Rio Grande do Norte, Natal/RN, Brazil
| | - Ernano Arrais
- Laboratory of Technological Innovation in Health (LAIS), Hospital Universitário Onofre Lopes, Federal University of Rio Grande do Norte (UFRN), Natal/RN, Brazil; Department of Biomedical Engineering, Federal University of Rio Grande do Norte (UFRN), Natal/RN, Brazil
| | - Karilany Dantas Coutinho
- Laboratory of Technological Innovation in Health (LAIS), Hospital Universitário Onofre Lopes, Federal University of Rio Grande do Norte (UFRN), Natal/RN, Brazil; Department of Biomedical Engineering, Federal University of Rio Grande do Norte (UFRN), Natal/RN, Brazil
| | | | - Aliete Cunha-Oliveira
- Health Sciences Research Unit, Nursing (UICISA: E) and Nursing School of Coimbra (ESEnfC), Coimbra, Portugal; Center for Interdisciplinary Studies - CEIS20, University of Coimbra, Coimbra, Portugal
| | | | - Ricardo A M Valentim
- Laboratory of Technological Innovation in Health (LAIS), Hospital Universitário Onofre Lopes, Federal University of Rio Grande do Norte (UFRN), Natal/RN, Brazil; Department of Biomedical Engineering, Federal University of Rio Grande do Norte (UFRN), Natal/RN, Brazil
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Feng S, Gao S, Wang Q, Cai M, Huang Z, Huang Y, Hong Y, Yuan L, Liu F, Jiang H. Development and validation of an individualised nomogram to predict mother-to-child transmission in pregnant women with syphilis in China: a retrospective cohort study. BMJ Open 2024; 14:e080211. [PMID: 38589256 PMCID: PMC11015325 DOI: 10.1136/bmjopen-2023-080211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Accepted: 03/11/2024] [Indexed: 04/10/2024] Open
Abstract
OBJECTIVES The elimination of mother-to-child transmission (MTCT) of syphilis has been set as a public health priority. However, an instrument to predict the MTCT of syphilis is not available. We aimed to develop and validate an intuitive nomogram to predict the individualised risk of MTCT in pregnant women with syphilis in China. DESIGN Retrospective cohort study. SETTING Data was acquired from the National Information System of Prevention of MTCT of Syphilis in Guangdong province between 2011 and 2020. PARTICIPANTS A total of 13 860 pregnant women with syphilis and their infants were included and randomised 7:3 into the derivation cohort (n=9702) and validation cohort (n=4158). PRIMARY OUTCOME MEASURES Congenital syphilis. RESULTS Among 13 860 pregnant women with syphilis and their infants included, 1370 infants were diagnosed with congenital syphilis. Least absolute shrinkage and selection operator regression and multivariable logistic regression showed that age, ethnicity, registered residence, marital status, number of pregnancies, transmission route, the timing of syphilis diagnosis, stage of syphilis, time from first antenatal care to syphilis diagnosis and toluidine red unheated serum test titre were predictors of MTCT of syphilis. A nomogram was developed based on the predictors, which demonstrated good calibration and discrimination with an area under the curve of the receiver operating characteristic of 0.741 (95% CI: 0.728 to 0.755) and 0.731 (95% CI: 0.710 to 0.752) for the derivation and validation cohorts, respectively. The net benefit of the predictive models was positive, demonstrating a significant potential for clinical decision-making. We have also developed a web calculator based on this prediction model. CONCLUSIONS Our nomogram exhibited good performance in predicting individualised risk for MTCT of syphilis, which may help guide early and personalised prevention for MTCT of syphilis.
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Affiliation(s)
- Shuaixin Feng
- Department of Epidemiology and Biostatistics, School of Public Health, Guangdong Pharmaceutical University, Guangzhou, China
| | - Shuang Gao
- Guangdong Women and Children Hospital, Guangzhou, China
| | - Qian Wang
- Department of Women Healthcare, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Min Cai
- Guangdong Women and Children Hospital, Guangzhou, China
| | - Zhaoqian Huang
- Department of Epidemiology and Biostatistics, School of Public Health, Guangdong Pharmaceutical University, Guangzhou, China
| | - Ying Huang
- Department of Epidemiology and Biostatistics, School of Public Health, Guangdong Pharmaceutical University, Guangzhou, China
| | - Yeting Hong
- Department of Epidemiology and Biostatistics, School of Public Health, Guangdong Pharmaceutical University, Guangzhou, China
| | - Li Yuan
- Guangdong Women and Children Hospital, Guangzhou, China
| | - Fenghua Liu
- Guangdong Women and Children Hospital, Guangzhou, China
| | - Hongbo Jiang
- Department of Epidemiology and Biostatistics, School of Public Health, Guangdong Pharmaceutical University, Guangzhou, China
- Institute for Global Health, University College London, London, UK
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Nhamo D, Mangenah C, Chapwanya G, Mamvuto T, Mahaka I, Sri-Pathmanathan C, Ferrand RA, Kranzer K, Terris-Prestholt F, Marks M, Tucker JD. Feasibility and economic costs of syphilis self-testing to expand test uptake among gay, bisexual and transgender men: results from a randomised controlled trial in Zimbabwe. Sex Health 2023; 20:514-522. [PMID: 37666490 DOI: 10.1071/sh23038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 08/10/2023] [Indexed: 09/06/2023]
Abstract
BACKGROUND Access to syphilis testing and treatment is frequently limited for men who have sex with men (MSM). A two-armed randomised controlled trial compared feasibility and costs of facility-based syphilis testing with self-testing among MSM in Zimbabwe. METHODS This randomised controlled trial was conducted in Harare, with participants randomised 1:1. Syphilis self-testing was offered in community-based settings. The primary outcome was the relative proportion of individuals taking up testing. Total incremental economic provider and user costs, and cost per client tested, diagnosed and treated were assessed using ingredients-based costing in 2020US$. RESULTS A total of 100 men were enrolled. The two groups were similar in demographics. The mean age was 26years. Overall, 58% (29/50) and 74% (37/50) of facility- and self-testing arm participants, respectively, completed syphilis testing. A total of 28% of facility arm participants had a reactive test, with 50% of them returning for confirmatory testing yielding 28% reactivity. In the self-testing arm, 67% returned for confirmatory testing, with a reactivity of 16%. Total provider costs were US$859 and US$736, and cost per test US$30 and US$15 for respective arms. Cost per reactive test was US$107 and US$123, and per client treated US$215 and US$184, respectively. The syphilis test kit was the largest cost component. Total user cost per client per visit was US$9. CONCLUSION Syphilis self-testing may increase test uptake among MSM in Zimbabwe. However, some barriers limit uptake including lack of self-testing and poor service access. Bringing syphilis testing services to communities, simplifying service delivery and increasing self-testing access through community-based organisations are useful strategies to promote health-seeking behaviours among MSM.
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Affiliation(s)
- Definate Nhamo
- Pangaea Zimbabwe AIDS Trust (PZAT), Harare, Zimbabwe; and Department of Nursing and Public Health, University of KwaZulu Natal (UKZN), Durban, South Africa
| | - Collin Mangenah
- Centre for Sexual Health and HIV Research (CeSHHAR), Harare, Zimbabwe; and Department of International Global Public Health, Liverpool School of Tropical Medicine (LSTM), Liverpool, UK
| | | | | | - Imelda Mahaka
- Pangaea Zimbabwe AIDS Trust (PZAT), Harare, Zimbabwe
| | | | - Rashida A Ferrand
- Department of Clinical Research, London School of Hygiene and Tropical Medicine (LSHTM), London, UK; and Biomedical Research and Training Institute, Harare, Zimbabwe
| | - Katharina Kranzer
- Department of Clinical Research, London School of Hygiene and Tropical Medicine (LSHTM), London, UK; and Biomedical Research and Training Institute, Harare, Zimbabwe
| | - Fern Terris-Prestholt
- Department of Global Health and Development, London School of Hygiene and Tropical Medicine (LSHTM), London, UK; and UNAIDS, Joint United Nations Programme on HIV/AIDS, Geneva, Switzerland
| | - Michael Marks
- Department of Clinical Research, London School of Hygiene and Tropical Medicine (LSHTM), London, UK
| | - Joseph D Tucker
- Department of Clinical Research, London School of Hygiene and Tropical Medicine (LSHTM), London, UK; and Institute of Global Health and Infectious Diseases, University of North Carolina at Chapel Hill (UNC), Chapel Hill, NC, USA
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Ogale YP, Grabowski MK, Nabakka P, Ddaaki W, Nakubulwa R, Nakyanjo N, Nalugoda F, Kagaayi J, Kigozi G, Denison JA, Gaydos C, Kennedy CE. Self-collected samples as an additional option for STI testing in low-resource settings: a qualitative study of acceptability among adults in Rakai, Uganda. BMJ Open 2023; 13:e073241. [PMID: 37963696 PMCID: PMC10649464 DOI: 10.1136/bmjopen-2023-073241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 10/09/2023] [Indexed: 11/16/2023] Open
Abstract
INTRODUCTION Self-collected samples (SCS) for sexually transmitted infection (STI) testing have been shown to be feasible and acceptable in high-resource settings. However, few studies have assessed the acceptability of SCS for STI testing in a general population in low-resource settings. This study explored the acceptability of SCS among adults in south-central Uganda. METHODS Nested within the Rakai Community Cohort Study, we conducted semistructured interviews with 36 adults who SCS for STI testing. We analysed the data using an adapted version of the Framework Method. RESULTS Overall, SCS was acceptable to both male and female participants, regardless of whether they reported recent STI symptoms. Perceived advantages of SCS over provider-collection included increased privacy and confidentiality, gentleness and efficiency. Disadvantages included the lack of provider involvement, fear of self-harm and the perception that SCS was unhygienic. Most participants preferred provider-collected samples to SCS. Nevertheless, almost all said they would recommend SCS and would do it again in the future. CONCLUSION SCS are acceptable among adults in this low-resource setting and could be offered as an additional option to expand STI diagnostic services.
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Affiliation(s)
- Yasmin Parvizi Ogale
- Department of International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | | | - Proscovia Nabakka
- Rakai Health Sciences Program, Kalisizo, Rakai, Central Region, Uganda
| | - William Ddaaki
- Rakai Health Sciences Program, Kalisizo, Rakai, Central Region, Uganda
| | - Rosette Nakubulwa
- Rakai Health Sciences Program, Kalisizo, Rakai, Central Region, Uganda
| | - Neema Nakyanjo
- Rakai Health Sciences Program, Kalisizo, Rakai, Central Region, Uganda
| | - Fred Nalugoda
- Rakai Health Sciences Program, Kalisizo, Rakai, Central Region, Uganda
| | - Joseph Kagaayi
- Rakai Health Sciences Program, Kalisizo, Rakai, Central Region, Uganda
| | - Godfrey Kigozi
- Rakai Health Sciences Program, Kalisizo, Rakai, Central Region, Uganda
| | - Julie A Denison
- Department of International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Charlotte Gaydos
- Department of Infectious Diseases, Johns Hopkins Medicine School of Medicine, Baltimore, Maryland, USA
| | - Caitlin E Kennedy
- Department of International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
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Lu WJ, Jian H, Wu YL, Zhu WQ, Yue XL, Fu GF, Gong XD. Prevalence and trend of gonorrhea in female sex workers and men having sex with men in China: a systematic review and meta-analysis. Public Health 2023; 221:106-115. [PMID: 37441994 DOI: 10.1016/j.puhe.2023.06.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 05/23/2023] [Accepted: 06/05/2023] [Indexed: 07/15/2023]
Abstract
OBJECTIVES This systematic review was conducted to estimate the respective prevalence of gonorrhea among two high-risk populations in China and determine the epidemiological features of gonorrhea in them. STUDY DESIGN Systematic review. METHODS PubMed, Web of Science, China National Knowledge Infrastructure, and Wanfang databases were searched to identify studies published between January 1, 1990, and October 31, 2022, with gonorrhea prevalence tested by polymerase chain reaction among female sex workers (FSWs) and men who have sex with men (MSM). Meta-regression and subgroup analyses were used to investigate potential factors of heterogeneity across studies. Trend analysis of prevalence was conducted by the Jonckheere-Terpstra method. RESULTS We identified 88 prevalence data points from 49 studies in China, with 30,853 participants of FSWs and 5523 participants of MSM. Pooled prevalence of gonorrhea among FSWs and MSM were 6.9% (95% confidence interval: 4.6-9.7%) and 2.5% (95% confidence interval: 1.5-3.7%), respectively. The subgroup analyses showed there were period, regional, and specimen collection methods diversities among FSWs, and diversities of the regions and specimen collection anatomical sites were found among MSM, in which the prevalence of rectum and pharynx was significantly higher than the urethra. A decreasing trend in the prevalence of gonorrhea was seen among FSWs (z = -4.03) from 1999 to 2021, not found for MSM in China. CONCLUSION The prevalence of gonorrhea is high in two high-risk groups in China, with extragenital infections requiring particular attention. The findings of this study will provide evidence to formulate national policy and guidance for gonorrhea prevention and control.
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Affiliation(s)
- W-J Lu
- School of Public Health, Nanjing Medical University, Nanjing, China; Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - H Jian
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - Y-L Wu
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - W-Q Zhu
- School of Public Health, Nanjing Medical University, Nanjing, China; Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - X-L Yue
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China; Department of STD Epidemiology, National Center for STD Control, Nanjing, China
| | - G-F Fu
- Department of HIV/STD Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - X-D Gong
- School of Public Health, Nanjing Medical University, Nanjing, China; Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China; Department of STD Epidemiology, National Center for STD Control, Nanjing, China.
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Tang W, Xie Y, Xiong M, Wu D, Ong JJ, Wi TE, Yang B, Tucker JD, Wang C. A Pay-It-Forward Approach to Improve Chlamydia and Gonorrhea Testing Uptake Among Female Sex Workers in China: Venue-Based Superiority Cluster Randomized Controlled Trial. JMIR Public Health Surveill 2023; 9:e43772. [PMID: 36862485 PMCID: PMC10020898 DOI: 10.2196/43772] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 02/08/2023] [Accepted: 02/14/2023] [Indexed: 03/03/2023] Open
Abstract
BACKGROUND Regular chlamydia and gonorrhea testing are essential for key populations, such as female sex workers (FSWs). However, testing cost, stigma, and lack of access prevent FSWs in low- and middle-income countries from receiving chlamydia and gonorrhea testing. A social innovation to address these problems is "pay it forward," where an individual receives a gift (free testing) and then asks whether they would like to give a gift to another person in the community. OBJECTIVE This cluster randomized controlled trial examined the effectiveness and cost of the pay-it-forward strategy in increasing access to chlamydia and gonorrhea testing among FSWs in China. METHODS This trial integrated a pay-it-forward approach into a community-based HIV outreach service. FSWs (aged 18 years or older) were invited by an outreach team from 4 Chinese cities (clusters) to receive free HIV testing. The 4 clusters were randomized into 2 study arms in a 1:1 ratio: a pay-it-forward arm (offered chlamydia and gonorrhea testing as a gift) and a standard-of-care arm (out-of-pocket cost for testing: US $11). The primary outcome was chlamydia and gonorrhea test uptake, as ascertained by administrative records. We conducted an economic evaluation using a microcosting approach from a health provider perspective, reporting our results in US dollars (at 2021 exchange rates). RESULTS Overall, 480 FSWs were recruited from 4 cities (120 per city). Most FSWs were aged ≥30 years (313/480, 65.2%), were married (283/480, 59%), had an annual income CONCLUSIONS The pay-it-forward strategy has the potential to enhance chlamydia and gonorrhea testing for Chinese FSWs and may be useful for scaling up preventive services. Further implementation research is needed to inform the transition of pay-it-forward research into practice. TRIAL REGISTRATION Chinese Clinical Trial Registry ChiCTR2000037653; https://www.chictr.org.cn/showprojen.aspx?proj=57233.
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Affiliation(s)
- Weiming Tang
- Dermatology Hospital of Southern Medical University, Guangzhou, China
- Southern Medical University Institute for Global Health, Guangzhou, China
- University of North Carolina at Chapel Hill Project-China, Guangzhou, China
| | - Yewei Xie
- University of North Carolina at Chapel Hill Project-China, Guangzhou, China
- Health Service & System Research programme, Duke-NUS Medical School, Singapore, Singapore
| | - Mingzhou Xiong
- Dermatology Hospital of Southern Medical University, Guangzhou, China
- Southern Medical University Institute for Global Health, Guangzhou, China
| | - Dan Wu
- University of North Carolina at Chapel Hill Project-China, Guangzhou, China
- Department of Clinical Research, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
- West China School of Public Health, Sichuan University, Chengdu, China
| | - Jason J Ong
- Department of Clinical Research, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
- Central Clinical School, Faculty of Medicine, Monash University, Melbourne, Australia
| | - Teodora Elvira Wi
- Department of Global HIV, Hepatitis and STI Programmes, World Health Organization Headquarters, Geneva, Switzerland
| | - Bin Yang
- Dermatology Hospital of Southern Medical University, Guangzhou, China
- Southern Medical University Institute for Global Health, Guangzhou, China
| | - Joseph D Tucker
- University of North Carolina at Chapel Hill Project-China, Guangzhou, China
- Department of Clinical Research, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Cheng Wang
- Dermatology Hospital of Southern Medical University, Guangzhou, China
- Southern Medical University Institute for Global Health, Guangzhou, China
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Ogale YP, Grabowski MK, Nabakka P, Ddaaki W, Nakubulwa R, Nakyanjo N, Nalugoda F, Kagaayi J, Kigozi G, Denison JA, Gaydos C, Kennedy CE. The Acceptability of Self-Collected Samples for STI Testing: A Qualitative Study Among Adults in Rakai, Uganda. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.02.17.23286055. [PMID: 36865312 PMCID: PMC9980269 DOI: 10.1101/2023.02.17.23286055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
Introduction Self-collected samples (SCS) for sexually transmitted infection (STI) testing have been shown to be feasible and acceptable in high-resource settings. However, few studies have assessed the acceptability of SCS for STI testing in a general population in low-resource settings. This study explored the acceptability of SCS among adults in south-central Uganda. Methods Nested within the Rakai Community Cohort Study, we conducted semi-structured interviews with 36 symptomatic and asymptomatic adults who self-collected samples for STI testing. We analyzed the data using an adapted version of the Framework Method. Results Overall, participants did not find SCS physically uncomfortable. Reported acceptability did not meaningfully differ by gender or symptom status. Perceived advantages to SCS included increased privacy and confidentiality, gentleness, and efficiency. Disadvantages included the lack of provider involvement, fear of self-harm and the perception that SCS was unhygienic. Most participants preferred provider-collected samples to SCS. Nevertheless, almost all said they would recommend SCS and would do it again in the future. Conclusion Despite a preference for provider-collection, SCS are acceptable among adults in this setting and support expanded access to STI diagnostic services.
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Wiginton JM, Eaton LA, Kalinowski J, Watson RJ, Kalichman SC. Lifetime prevalence of syphilis infection among predominantly Black sexual and gender minorities living with HIV in Atlanta, Georgia: a cross-sectional analysis. ETHNICITY & HEALTH 2023; 28:159-169. [PMID: 34818951 PMCID: PMC9126996 DOI: 10.1080/13557858.2021.2007225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Accepted: 11/11/2021] [Indexed: 06/13/2023]
Abstract
OBJECTIVES Syphilis infection disproportionately impacts Black sexual and gender minorities (SGM) in the United States. The extent of this impact among those living with HIV has been minimally examined. This study sought to examine lifetime syphilis prevalence and associated factors in a community sample of predominantly Black SGM living with HIV in the Southeastern US. DESIGN Participants (N = 174) enrolled in a stigma-mitigation trial for people living with HIV in Atlanta, Georgia, completed a sub-study involving testing for Treponema pallidum antibodies, indicative of lifetime syphilis infection. We performed chi-square and Fisher's exact tests to assess sociodemographic and healthcare differences by presence/absence of lifetime syphilis infection. RESULTS Most participants identified as non-Hispanic Black (n = 142/174; 81.6%) and cisgender male (n = 146/174; 83.9%). More than two thirds (n = 120/174) identified as gay/homosexual. We documented a 55.7% (n = 97/174) lifetime prevalence of syphilis infection and observed differences by sexual identity, with 77.3% (n = 75/97) of those screening positive reporting gay/homosexual identity relative to 58.4% (n = 45/77) of those screening negative (chi-square[1] = 7.8, p < 0.010). CONCLUSION Findings underscore how syphilis prevention efforts have missed the most marginalized, warranting a renewed, comprehensive strategy for improving the sexual health of Black SGM. Embedding targeted, respectful community engagement, expanded testing access, and healthcare provider training into broader sexual health and psychosocial wellness efforts is needed.
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Affiliation(s)
- John Mark Wiginton
- Department of Health, Behavior & Society, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Lisa A. Eaton
- Department of Human Development and Family Sciences, University of Connecticut, Storrs, CT, USA
| | - Jolaade Kalinowski
- Department of Human Development and Family Sciences, University of Connecticut, Storrs, CT, USA
| | - Ryan J. Watson
- Department of Human Development and Family Sciences, University of Connecticut, Storrs, CT, USA
| | - Seth C. Kalichman
- Department of Psychological Sciences, University of Connecticut, Storrs, CT, USA
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10
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Tan MCY, Walford N, Tan KK. Primary syphilis chancre masquerading as a frenulum tear, the essence of histology: a case report. Oxf Med Case Reports 2022; 2022:omac114. [PMID: 36299666 PMCID: PMC9589461 DOI: 10.1093/omcr/omac114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 08/24/2022] [Accepted: 09/15/2022] [Indexed: 11/05/2022] Open
Abstract
Syphilitic chancres are pathognomonic of primary syphilis and can have many atypical presentations. Early detection of such lesions can prevent complications by linking patients to care early. We report a case of a 45-year-old Chinese men who has sex with men (MSM) presenting with a wound on his penis after masturbation. Initial impressions of a frenulum tear secondary to overzealous masturbation led to a circumcision and frenulectomy. Routine histology done provided an unexpected finding of plasma cell infiltrates suggestive of Syphilis. Serology was done to confirm the diagnosis and patient was treated with oral doxycycline for 2 weeks. This case aims to highlight the importance of routine histology during circumcisions especially because lesions such as syphilitic chancres are not always typical in presentation.
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Affiliation(s)
- Matthew C Y Tan
- Correspondence address. Saw Swee Hock School of Public Health, National University of Singapore, 12 Science Drive, #10-01, Singapore 117549. E-mail:
| | - Norman Walford
- Innoquest Diagnostic Laboratories, Farrer Park Hospital, Singapore
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11
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Tuddenham S, Ghanem KG. The Critical Need to Modernize Syphilis Screening. JAMA 2022; 328:1209-1211. [PMID: 36166050 DOI: 10.1001/jama.2022.15227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- Susan Tuddenham
- Division of Infectious Diseases, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Khalil G Ghanem
- Division of Infectious Diseases, Johns Hopkins University School of Medicine, Baltimore, Maryland
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12
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Almeida MCD, Cordeiro AMR, Cunha-Oliveira A, Barros DMS, Santos DGSM, Lima TS, Valentim RAM. Syphilis response policies and their assessments: A scoping review. Front Public Health 2022; 10:1002245. [PMID: 36187663 PMCID: PMC9523564 DOI: 10.3389/fpubh.2022.1002245] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Accepted: 08/30/2022] [Indexed: 01/27/2023] Open
Abstract
Syphilis is one of the most common sexually transmitted infections (STIs) worldwide and has shown a rising trend in recent years, according to a report published by the World Health Organization (WHO) in 2021. Given this problem, the present study aims to develop a scoping review of what has been done in the world after the publication of the global strategy for the elimination of STIs, with a specific focus on syphilis. Thus, we searched for papers on health policies in response to syphilis in Pubmed, Scopus, ScienceDirect, and EBSCO by CINAHL, as well as in official documents from international health organizations. The period from January 1, 2016, to August 14, 2022 was considered. Our search returned 880 papers addressing "Syphilis," "Health Policy," and "Health Policies" combined. Twenty-three papers fulfilled the inclusion and exclusion criteria according to two research questions set out for this scoping review. Our findings suggest that Brazil and Peru presented the greatest adequacy of the strategies provided by WHO in 2016 and the Pan American Health Organization (PAHO) in 2017, aiming tothe goals set out in the UN's 2030 Agenda for sustainable development. Among the studies found, six countries (Cuba, Thailand, Belarus, Armenia, Moldova, and Puerto Rico) reported the elimination of mother-to-child transmission (MTCT) of syphilis, but the most recent data are from 2016. Furthermore, it is essential to mention that no country has been found that has presented a comprehensive response to syphilis, noting the control or elimination of the disease in all key populations. Thus, it is necessary to constantly monitor national policies based on in-depth studies on the quality of the response, the challenges, and the national, regional, and global perspectives for the control of the disease until 2030, the year in which the SDGs will be reviewed. Systematic review registration https://osf.io/x9er5/?view_only=0cc0062222ec45dcb2f4d41484d285b6, identifier: 10.17605/OSF.IO/X9ER5.
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Affiliation(s)
- Milena C. D. Almeida
- Centre for Interdisciplinary Studies, University of Coimbra, Coimbra, Portugal
- Laboratory of Technological Innovation in Health (LAIS), Federal University of Rio Grande do Norte (UFRN), Natal, Brazil
| | | | - Aliete Cunha-Oliveira
- Centre for Interdisciplinary Studies, University of Coimbra, Coimbra, Portugal
- Health Sciences Research Unit: Nursing (UICISA:E), School of Nursing of Coimbra (ESEnfC), Coimbra, Portugal
| | - Daniele M. S. Barros
- Laboratory of Technological Innovation in Health (LAIS), Federal University of Rio Grande do Norte (UFRN), Natal, Brazil
| | - Diana G. S. M. Santos
- Health Sciences Research Unit: Nursing (UICISA:E), School of Nursing of Coimbra (ESEnfC), Coimbra, Portugal
- Coimbra Hospital, University Center, Coimbra, Portugal
| | - Thaísa S. Lima
- Laboratory of Technological Innovation in Health (LAIS), Federal University of Rio Grande do Norte (UFRN), Natal, Brazil
- Brazilian Ministry of Health, Brasília, Brazil
| | - Ricardo A. M. Valentim
- Laboratory of Technological Innovation in Health (LAIS), Federal University of Rio Grande do Norte (UFRN), Natal, Brazil
- Department of Biomedical Engineering, Federal University of Rio Grande do Norte (UFRN), Natal, Brazil
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13
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Coomes D, Green D, Barnabas R, Sharma M, Barr-DiChiara M, Jamil MS, Baggaley R, Owiredu MN, Macdonald V, Nguyen VTT, Vo SH, Taylor M, Wi T, Johnson C, Drake AL. Cost-effectiveness of implementing HIV and HIV/syphilis dual testing among key populations in Viet Nam: a modelling analysis. BMJ Open 2022; 12:e056887. [PMID: 35953255 PMCID: PMC9379490 DOI: 10.1136/bmjopen-2021-056887] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVES Key populations, including sex workers, men who have sex with men, and people who inject drugs, have a high risk of HIV and sexually transmitted infections. We assessed the health and economic impacts of different HIV and syphilis testing strategies among three key populations in Viet Nam using a dual HIV/syphilis rapid diagnostic test (RDT). SETTING We used the spectrum AIDS impact model to simulate the HIV epidemic in Viet Nam and evaluated five testing scenarios among key populations. We used a 15-year time horizon and a provider perspective for costs. PARTICIPANTS We simulate the entire population of Viet Nam in the model. INTERVENTIONS We modelled five testing scenarios among key populations: (1) annual testing with an HIV RDT, (2) annual testing with a dual RDT, (3) biannual testing using dual RDT and HIV RDT, (4) biannual testing using HIV RDT and (5) biannual testing using dual RDT. PRIMARY AND SECONDARY OUTCOME MEASURES The primary outcome is incremental cost-effectiveness ratios. Secondary outcomes include HIV and syphilis cases. RESULTS Annual testing using a dual HIV/syphilis RDT was cost-effective (US$10 per disability-adjusted life year (DALY)) and averted 3206 HIV cases and treated 27 727 syphilis cases compared with baseline over 15 years. Biannual testing using one dual test and one HIV RDT (US$1166 per DALY), or two dual tests (US$5672 per DALY) both averted an additional 875 HIV cases, although only the former scenario was cost-effective. Annual or biannual HIV testing using HIV RDTs and separate syphilis tests were more costly and less effective than using one or two dual RDTs. CONCLUSIONS Annual HIV and syphilis testing using dual RDT among key populations is cost-effective in Vietnam and similar settings to reach global reduction goals for HIV and syphilis.
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Affiliation(s)
- David Coomes
- Department of Epidemiology, University of Washington, Seattle, Washington, USA
- Department of Global Health, University of Washington, Seattle, Washington, USA
| | - Dylan Green
- Department of Epidemiology, University of Washington, Seattle, Washington, USA
- Department of Global Health, University of Washington, Seattle, Washington, USA
| | - Ruanne Barnabas
- Department of Global Health, University of Washington, Seattle, Washington, USA
- Department of Medicine, University of Washington, Seattle, Washington, USA
| | - Monisha Sharma
- Department of Global Health, University of Washington, Seattle, Washington, USA
| | - Magdalena Barr-DiChiara
- Department of Global HIV, Hepatitis and STI Programmes, World Health Organization, Geneva, Switzerland
| | - Muhammad S Jamil
- Department of Global HIV, Hepatitis and STI Programmes, World Health Organization, Geneva, Switzerland
| | - R Baggaley
- Department of Global HIV, Hepatitis and STI Programmes, World Health Organization, Geneva, Switzerland
| | - Morkor Newman Owiredu
- Department of Global HIV, Hepatitis and STI Programmes, World Health Organization, Geneva, Switzerland
| | - Virginia Macdonald
- Department of Global HIV, Hepatitis and STI Programmes, World Health Organization, Geneva, Switzerland
| | | | - Son Hai Vo
- Viet Nam Authority for HIV/AIDS Prevention and Control, Government of Viet Nam Ministry of Health, Hanoi, Viet Nam
| | - Melanie Taylor
- Department of Global HIV, Hepatitis and STI Programmes, World Health Organization, Geneva, Switzerland
- Division of STD Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Teodora Wi
- Department of Global HIV, Hepatitis and STI Programmes, World Health Organization, Geneva, Switzerland
| | - Cheryl Johnson
- Department of Global HIV, Hepatitis and STI Programmes, World Health Organization, Geneva, Switzerland
- Clinical Research Department, London School of Hygiene & Tropical Medicine, London, UK
| | - Alison L Drake
- Department of Epidemiology, University of Washington, Seattle, Washington, USA
- Department of Global Health, University of Washington, Seattle, Washington, USA
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14
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Martin K, Wenlock R, Roper T, Butler C, Vera JH. Facilitators and barriers to point-of-care testing for sexually transmitted infections in low- and middle-income countries: a scoping review. BMC Infect Dis 2022; 22:561. [PMID: 35725437 PMCID: PMC9208134 DOI: 10.1186/s12879-022-07534-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 06/13/2022] [Indexed: 11/10/2022] Open
Abstract
Background Sexually transmitted infections (STIs) in low- and middle-income countries (LMICs) are predominantly managed by syndromic management. However, most STIs are asymptomatic. These untreated STIs cause individual morbidity, and lead to high STI prevalences. There is increasing interest in the use of point-of-care tests (POCTs) for STIs in LMICs, which could facilitate same day testing and treatment. To best utilise these tests, we must understand the facilitators and barriers to their implementation. The aim of this review is to explore how point-of-care testing for STIs has been implemented into healthcare systems in LMIC and the facilitators and barriers to doing so. Methods A scoping review was conducted by searching MEDLINE, Embase, Emcare, CINAHL, Scopus, LILACS, the Cochrane Library, and ProQuest Dissertations and Theses for studies published between 1st January 1998 and 5th June 2020. Abstracts and full articles were screened independently by two reviewers. Studies were considered for inclusion if they assessed the acceptability, feasibility, facilitators, or barriers to implementation of point-of-care testing for chlamydia, gonorrhoea, trichomoniasis or syphilis in LMICs. Thematic analysis was used to analyse and present the facilitators and barriers to point-of-care STI testing. Results The literature search revealed 82 articles suitable for inclusion; 44 (53.7%) from sub-Saharan Africa; 21 (25.6%) from Latin American and the Caribbean; 10 (12.2%) from East Asia and the Pacific; 6 (7.3%) from South Asia; and one (1.2%) multi-regional study. Thematic analysis revealed seven overarching themes related to the implementation of POCTs in LMICs, namely (i) Ideal test characteristics, (ii) Client factors, (iii) Healthcare provision factors, (iv) Policy, infrastructure and health system factors, (v) Training, audit, and feedback, (vi) Reaching new testing environments, and (vii) Dual testing. Conclusion Implementation of POCTs in LMICs is complex, with many of the barriers due to wider health system weakness. In addition to pressing for broader structural change to facilitate basic healthcare delivery, these themes may also be used as a basis on which to develop future interventions. The literature was heavily skewed towards syphilis testing, and so more research needs to be conducted assessing chlamydia, gonorrhoea, and trichomoniasis testing, as well as home or self-testing. Supplementary Information The online version contains supplementary material available at 10.1186/s12879-022-07534-9.
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Affiliation(s)
- Kevin Martin
- Department of Clinical Research, London School of Hygiene & Tropical Medicine, London, WC1E 7HT, UK. .,Biomedical Research and Training Institute, Harare, Zimbabwe. .,Department of Global Health and Infection, Brighton and Sussex Medical School, Brighton, UK.
| | - Rhys Wenlock
- University Hospitals Sussex NHS Foundation Trust, Brighton, UK
| | - Tom Roper
- University Hospitals Sussex NHS Foundation Trust, Brighton, UK
| | - Ceri Butler
- Department of Medical Education, Brighton and Sussex Medical School, Brighton, UK
| | - Jaime H Vera
- Department of Global Health and Infection, Brighton and Sussex Medical School, Brighton, UK.,University Hospitals Sussex NHS Foundation Trust, Brighton, UK
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15
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Dzobo M, Dzinamarira T, Murewanhema G, Madziva R, Herrera H, Musuka G. Limited syphilis testing for key populations in Zimbabwe: A silent public health threat. S Afr J Infect Dis 2022; 37:385. [PMID: 35815225 PMCID: PMC9257705 DOI: 10.4102/sajid.v37i1.385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Accepted: 03/31/2022] [Indexed: 11/01/2022] Open
Abstract
In this article, the authors discuss the problem of high prevalences of active syphilis amongst key populations (KPs) in Zimbabwe, in combination with low testing rates, partly because of a difficult legal and social environment for these populations. The article highlights the need to develop strategies to address the high prevalence of syphilis amongst KPs. The authors discuss requirements for addressing deficits in existing clinical services, predominantly primary care settings, in providing primary healthcare, including sexually transmitted infection (STI) management, to Zimbabwe’s KP communities and utility of point-of-care testing and self-testing and other innovations to improve testing uptake.
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Affiliation(s)
- Mathias Dzobo
- School of Health Systems and Public Health, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Tafadzwa Dzinamarira
- School of Health Systems and Public Health, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Grant Murewanhema
- Unit of Obstetrics and Gynecology, Faculty of Medicine and Health Sciences, University of Zimbabwe, Harare, Zimbabwe
| | - Roda Madziva
- School of Sociology and Social Policy, University of Nottingham, Nottingham, United Kingdom
| | - Helena Herrera
- School of Pharmacy and Biomedical Sciences, University of Portsmouth, Portsmouth, United Kingdom
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16
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Wang C, Li X, Wang Y, Yang B. Syphilis Self-Testing Among Female Sex Workers in China: Implications for Expanding Syphilis Screening. Front Public Health 2022; 10:744240. [PMID: 35493357 PMCID: PMC9045586 DOI: 10.3389/fpubh.2022.744240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 02/14/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundSyphilis self-testing (SST) may help expand syphilis test uptake among female sex workers. However, there has been no studies on examining SST among female sex workers. We aim to examine SST experience and its determinants among female sex workers in China.MethodsA venue-based, cross-sectional study of female sex workers was conducted in eight Chinese cities in 2019. Participants completed a survey including socio-demographic characteristics, sexual behaviors, and SST history. Multivariable logistic regression was conducted to evaluate the associated factors with SST.ResultsAmong 1,287 Chinese female sex workers, 72.1% (928/1,287) had ever tested for syphilis, and 5.9% (76/1,287) had ever used syphilis self-testing. Among syphilis self-testers, more than half (57.9%, 44/76) reported that the self-test was their first syphilis test, around one-fifth (18.4%, 14/76) reported that syphilis self-testing results influenced the price of commercial sex. After adjusting for covariates, female sex workers who received anal sex in the past month (adjusted odds ratio [aOR]: 2.6, 95%CI: 1.5–4.3, p < 0.001), used drugs before or during sex (aOR: 3.8, 95%CI: 2.3–6.4, p < 0.001), tested for other sexually transmitted infections (STIs) in the past 6 months (aOR: 3.4, 95%CI: 1.9–6.0), ever tested in the hospital (aOR: 5.1, 95%CI: 2.5–10.4, p < 0.001), and ever tested in the community (aOR: 1.7, 95%CI: 1.3–2.2, p < 0.001) were more likely to perform syphilis self-testing.ConclusionsSyphilis self-testing has the potential to expand testing coverage, and increase testing frequency with limited potential harms among FSW. Further evaluation on the intervention effects based on syphilis self-testing among FSW are needed.
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Affiliation(s)
- Cheng Wang
- Dermatology Hospital of Southern Medical University, Guangzhou, China
- Southern Medical University Institute for Global Health and Sexually Transmitted Diseases, Guangzhou, China
- *Correspondence: Cheng Wang
| | - Xia Li
- Dermatology Hospital of Southern Medical University, Guangzhou, China
- Southern Medical University Institute for Global Health and Sexually Transmitted Diseases, Guangzhou, China
| | - Yajie Wang
- Dermatology Hospital of Southern Medical University, Guangzhou, China
- Southern Medical University Institute for Global Health and Sexually Transmitted Diseases, Guangzhou, China
| | - Bin Yang
- Dermatology Hospital of Southern Medical University, Guangzhou, China
- Southern Medical University Institute for Global Health and Sexually Transmitted Diseases, Guangzhou, China
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17
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Expanding syphilis test uptake using rapid dual self-testing for syphilis and HIV among men who have sex with men in China: A multiarm randomized controlled trial. PLoS Med 2022; 19:e1003930. [PMID: 35235573 PMCID: PMC8890628 DOI: 10.1371/journal.pmed.1003930] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 01/25/2022] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Low syphilis testing uptake is a major public health issue among men who have sex with men (MSM) in many low- and middle-income countries. Syphilis self-testing (SST) may complement and extend facility-based testing. We aimed to evaluate the effectiveness and costs of providing SST on increasing syphilis testing uptake among MSM in China. METHODS AND FINDINGS An open-label, parallel 3-arm randomized controlled trial (RCT) was conducted between January 7, 2020 and July 17, 2020. Men who were at least 18 years of age, had condomless anal sex with men in the past year, reported not testing for syphilis in the last 6 months, and had a stable residence with mailing addresses were recruited from 124 cities in 26 Chinese provinces. Using block randomization with blocks of size 12, enrolled participants were randomly assigned (1:1:1) into 3 arms: standard of care arm, standard SST arm, and lottery incentivized SST arm (1 in 10 chance to win US$15 if they had a syphilis test). The primary outcome was the proportion of participants who tested for syphilis during the trial period and confirmed with photo verification and between arm comparisons were estimated with risk differences (RDs). Analyses were performed on a modified intention-to-treat basis: Participants were included in the complete case analysis if they had initiated at least 1 follow-up survey. The Syphilis/HIV Duo rapid test kit was used. A total of 451 men were enrolled. In total, 136 (90·7%, 136/150) in the standard of care arm, 142 (94·0%, 142/151) in the standard of SST arm, and 137 (91·3%, 137/150) in the lottery incentivized SST arm were included in the final analysis. The proportion of men who had at least 1 syphilis test during the trial period was 63.4% (95% confidence interval [CI]: 55.5% to 71.3%, p = 0.001) in the standard SST arm, 65.7% (95% CI: 57.7% to 73.6%, p = 0.0002) in the lottery incentivized SST arm, and 14.7% (95% CI: 8.8% to 20.7%, p < 0.001) in the standard of care arm. The estimated RD between the standard SST and standard of care arm was 48.7% (95% CI: 37.8% to 58.4%, p < 0.001). The majority (78.5%, 95% CI: 72.7% to 84.4%, p < 0.001) of syphilis self-testers reported never testing for syphilis. The cost per person tested was US$26.55 for standard SST, US$28.09 for the lottery incentivized SST, and US$66.19 for the standard of care. No study-related adverse events were reported during the study duration. Limitation was that the impact of the Coronavirus Disease 2019 (COVID-19) restrictions may have accentuated demand for decentralized testing. CONCLUSIONS Compared to standard of care, providing SST significantly increased the proportion of MSM testing for syphilis in China and was cheaper (per person tested). TRIAL REGISTRATION Chinese Clinical Trial Registry: ChiCTR1900022409.
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18
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Dumchev K. Challenges of sexually transmitted infections and sexual health among people who inject drugs. Curr Opin Infect Dis 2022; 35:55-60. [PMID: 34799511 DOI: 10.1097/qco.0000000000000801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW This review provides a summary of recently published research on sexually transmitted infections (STI) and related behaviors among people who inject drugs (PWID), covering three major areas: sexual behavior and its role in STI transmission among PWID, multilevel factors associated with STI risk, and strategies addressing sexual health of PWID. This review is timely given the growing priority of combination prevention approaches and integrated care for PWID. RECENT FINDINGS Modern research improves the understanding that PWID have an increased risk of STI, which varies by gender, setting, type of substance used, and presence of mental disorders. Major socioeconomic and structural factors, specific and nonspecific to PWID, facilitate inequality and sexual risk behavior. Sexual transmission continues to contribute substantially to the spread of bloodborne infections among PWID, accounting for at least 10% of new HIV cases according to epidemiological modeling. Despite the substantial evidence that behavioral interventions can improve sexual health and reduce sex-related risks among PWID, there is a research-practice gap, reflected in the scarcity of implementation studies published recently. SUMMARY Integration of sexual health into prevention programs for PWID is essential to curb transmission of STI, including HIV, among PWID and their sexual partners.
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19
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Wu D, Zhou Y, Yang N, Huang S, He X, Tucker J, Li X, Smith KM, Ritchwood T, Jiang X, Liu X, Wang Y, Huang W, Ong J, Fu H, Bao H, Pan S, Dai W, Tang W. Social Media-Based Secondary Distribution of Human Immunodeficiency Virus/Syphilis Self-testing Among Chinese Men Who Have Sex with Men. Clin Infect Dis 2021; 73:e2251-e2257. [PMID: 32588883 PMCID: PMC8492201 DOI: 10.1093/cid/ciaa825] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 06/17/2020] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Social media and secondary distribution (distributing self-testing kits by indexes through their networks) both show strong promise to improve human immunodeficiency virus (HIV) self-testing uptake. We assessed an implementation program in Zhuhai, China, which focused on the secondary distribution of HIV/syphilis self-test kits among men who have sex with men (MSM) via social media. METHODS Men aged ≥16 years, born biologically male, and ever had sex with another man were recruited as indexes. Banner ads on a social media platform invited the participants to apply for up to 5 self-test kits every 3 months. Index men paid a deposit of US$15/kit refundable upon submitting a photograph of a completed test result via an online submission system. They were informed that they could distribute the kits to others (referred to as "alters"). RESULTS A total of 371 unique index men applied for 1150 kits (mean age, 28.7 [standard deviation, 6.9] years), of which 1141 test results were returned (99%). Among them, 1099 were valid test results; 810 (74%) were from 331 unique index men, and 289 tests (26%) were from 281 unique alters. Compared to index men, a higher proportion of alters were naive HIV testers (40% vs 21%; P < .001). The total HIV self-test reactivity rate was 3%, with alters having a significantly higher rate than indexes (5% vs 2%; P = .008). A total of 21 people (3%) had a reactive syphilis test result. CONCLUSIONS Integrating social media with the secondary distribution of self-test kits may hold promise to increase HIV/syphilis testing coverage and case identification among MSM.
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Affiliation(s)
- Dan Wu
- Department of Clinical Research, London School of Hygiene and Tropical Medicine, London, United Kingdom
- Insititute of Global Health and Sexually Transmitted Infection Research, Southern Medical University, Guangzhou, China
- Dermatology Hospital, Southern Medical University, Guangzhou, China
| | - Yi Zhou
- Zhuhai Center for Diseases Control and Prevention, Zhuhai, China
| | - Nancy Yang
- University of Minnesota Twin Cities, Minneapolis, Minnesota, USA
| | - Shanzi Huang
- Zhuhai Center for Diseases Control and Prevention, Zhuhai, China
| | - Xi He
- Zhuhai Xutong Voluntary Services Center, Zhuhai, China
| | - Joseph Tucker
- Department of Clinical Research, London School of Hygiene and Tropical Medicine, London, United Kingdom
- University of North Carolina Project–China, Guangzhou, China
| | - Xiaofeng Li
- Zhuhai Center for Diseases Control and Prevention, Zhuhai, China
| | - Kumi M Smith
- Division of Epidemiology and Community Health, University of Minnesota Twin Cities, Minneapolis, Minnesota, USA
| | - Tiarney Ritchwood
- Family Medicine and Community Health, Duke University, Durham, North Carolina, USA
| | | | - Xuan Liu
- University of North Carolina Project–China, Guangzhou, China
| | - Yehua Wang
- University of North Carolina Project–China, Guangzhou, China
| | - Wenting Huang
- Behavioral Sciences and Health Education, Emory University, Georgia, Atlanta, USA
| | - Jason Ong
- Department of Clinical Research, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Hongyun Fu
- Eastern Virginia Medical School, Norfolk, Virginia, USA
| | - Huanyu Bao
- University of North Carolina Project–China, Guangzhou, China
| | - Stephen Pan
- Department of Health and Environmental Sciences, Xi’an Jiaotong Liverpool University, Suzhou, China
| | - Wencan Dai
- Dermatology Hospital, Southern Medical University, Guangzhou, China
| | - Weiming Tang
- Insititute of Global Health and Sexually Transmitted Infection Research, Southern Medical University, Guangzhou, China
- Dermatology Hospital, Southern Medical University, Guangzhou, China
- University of North Carolina Project–China, Guangzhou, China
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20
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Burchell AN, Tan DHS, Grewal R, MacPherson PA, Walmsley S, Anita R, Andany N, Mishra S, Gardner SL, Raboud J, Fisman D, Cooper C, Gough K, Maxwell J, Rourke SB, Rousseau R, Mazzulli T, Salit IE, Allen VG. Routinised Syphilis Screening among Men Living with HIV: A stepped wedge cluster randomised controlled trial. Clin Infect Dis 2021; 74:846-853. [PMID: 34175944 DOI: 10.1093/cid/ciab582] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Frequent syphilis screening may increase early detection and decrease transmission. We implemented an opt-out clinic-based intervention pairing syphilis tests with routine HIV viral load testing. The primary objective was to determine the degree to which this intervention increased the detection of early syphilis. METHODS The Enhanced Syphilis Screening among HIV-positive Men (ESSAHM) Trial was a stepped wedge cluster-randomised controlled trial involving four urban HIV clinics in Ontario, Canada, from 2015 to 2017. Population: HIV-positive adult males. Intervention (I): standing orders for syphilis serological testing with viral loads. Control (C): usual practice. Outcome: early syphilis diagnosis. We obtained test results via linkage with the centralized provincial laboratory and defined cases using a standardized clinical worksheet and medical chart review. We employed a generalized linear mixed model with a logit link to estimate odds ratios (OR) and 95% confidence intervals (CI) of the intervention. FINDINGS 3,895 men were followed over 7,471 person-years (PY). The mean number of syphilis tests increased from 0.53 to 2.02 tests per person per year. There were 217 new diagnoses of syphilis (C: 81; I: 136), for which 147 (68%) were cases of early syphilis (C:61 (75%); I:86 (63%)). The annualized proportion with newly-detected early syphilis increased from 0.009 to 0.032 with implementation of the intervention; the corresponding time-adjusted OR was 1.25 (CI 0.71, 2.20). INTERPRETATION The implementation of standing orders for syphilis testing with HIV viral loads was feasible and increased testing yet produced less-than-expected increases in case detection compared to past uncontrolled pre-post trials.
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Affiliation(s)
- Ann N Burchell
- Department of Family and Community Medicine, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada.,MAP Centre for Urban Health Solutions, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Unity Health Toronto, Toronto, Canada.,Department of Family and Community Medicine, Faculty of Medicine, University of Toronto, Toronto, Canada
| | - Darrell H S Tan
- Department of Medicine, University of Toronto, Toronto, Canada.,Toronto General Hospital Research Institute, University Health Network, Toronto, Canada.,Division of Infectious Diseases, St. Michael's Hospital, Unity Health Toronto, Toronto, Canada.,MAP Centre for Urban Health Solutions, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada
| | - Ramandip Grewal
- MAP Centre for Urban Health Solutions, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada
| | - Paul A MacPherson
- Division of Infectious Diseases, The Ottawa Hospital, Ottawa, Ontario, Canada.,Ottawa Hospital Research Institute, Ottawa, Canada.,Department of Medicine, University of Ottawa, Ottawa, Canada
| | - Sharon Walmsley
- Department of Medicine, University of Toronto, Toronto, Canada.,Toronto General Hospital, University Health Network, Toronto, Ontario, Canada
| | - Rachlis Anita
- Department of Medicine, University of Toronto, Toronto, Canada.,Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Nisha Andany
- Department of Medicine, University of Toronto, Toronto, Canada.,Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Sharmistha Mishra
- Department of Medicine, University of Toronto, Toronto, Canada.,MAP Centre for Urban Health Solutions, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada.,Institute of Medical Science and Institute of Health Policy, Management, and Evaluation, University of Toronto
| | - Sandra L Gardner
- Baycrest, Toronto, Ontario, Canada.,Dalla Lana School of Public Health, University of Toronto
| | - Janet Raboud
- Dalla Lana School of Public Health, University of Toronto.,Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada
| | - David Fisman
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Curtis Cooper
- Ottawa Hospital Research Institute, The Ottawa Hospital, Ottawa, Ontario, Canada.,Division of Infectious Diseases, Department of Medicine, Faculty of Medicine, University of Ottawa, Ottawa
| | - Kevin Gough
- Department of Medicine, University of Toronto, Toronto, Canada.,Division of Infectious Diseases, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada, Toronto, Ontario, Canada
| | | | - Sean B Rourke
- MAP Centre for Urban Health Solutions, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada.,Department of Psychiatry, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Rodney Rousseau
- Department of Immunology, University of Toronto, King's College Cir, Toronto, Ontario, Canada
| | - Tony Mazzulli
- Mount Sinai Hospital, Toronto, Ontario, Canada.,Public Health Ontario Laboratories, Public Health Ontario
| | - Irving E Salit
- Toronto General Hospital, University Health Network, Toronto, Ontario, Canada
| | - Vanessa G Allen
- Public Health Ontario Laboratories, Public Health Ontario, Toronto, Ontario, Canada
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21
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van Griensven F, Janamnuaysook R, Nampaisan O, Peelay J, Samitpol K, Mills S, Pankam T, Ramautarsing R, Teeratakulpisarn N, Phanuphak P, Phanuphak N. Uptake of Primary Care Services and HIV and Syphilis Infection among Transgender Women attending the Tangerine Community Health Clinic, Bangkok, Thailand, 2016 - 2019. J Int AIDS Soc 2021; 24:e25683. [PMID: 34152695 PMCID: PMC8216133 DOI: 10.1002/jia2.25683] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 02/09/2021] [Accepted: 02/12/2021] [Indexed: 12/31/2022] Open
Abstract
INTRODUCTION Transgender women (TGW) need a specific package of primary care services usually not available in the publicly funded healthcare system. In addition, little is known about HIV and syphilis prevalence and incidence in clinic-based samples of TGW. Here we evaluate the uptake of a transgender-specific package of primary care services by TGW in Bangkok, Thailand and assess HIV and syphilis prevalence and incidence among them. METHODS Open cohort study of TGW attending services at the Tangerine Community Health Clinic from 2016 to 2019. Cross-sectional and longitudinal analysis of routinely collected clinic data was performed to study trends in the number of clients, clinic visits and HIV and syphilis prevalence and incidence. RESULTS During the study period, 2947 TGW clients made a total of 5227 visits to Tangerine. The number of clients significantly increased from 446 in 2016 to 1050 in 2019 (p < 0.001) and the number of visits from 616 to 2198 during the same period (p < 0.001). Prevalence of HIV at first visit was 10.8% and of syphilis 9.8%. HIV incidence was 1.03 per 100 person years (PY) and of syphilis 2.06 per 100 PY of follow-up. From 2016 to 2019, significant decreases occurred in the annual prevalence of HIV from 14.6% to 9.9% (p < 0.01). The annual prevalence of syphilis significantly increased from 6.6% in 2016 to 14.6% in 2018, and then decreased to 7.3% in 2019 (p < 0.001). The annual HIV incidence decreased during 2016 to 2019, from 1.68 to 1.28 per 100 PY, but this reduction was not statistically significant. The annual incidence of treponemal test seroconversion significantly increased from zero in 2016 to 4.55 per 100 PY in 2019 (p < 0.001). CONCLUSIONS The increasing uptake of a transgender-specific package of services, including co-located gender affirmative hormone therapy, suggests this may be an effective model in engaging and retaining TGW in primary care. The decrease in HIV prevalence and low HIV incidence across calendar years point at a possible reduction of HIV acquisition among the TGW population served by Tangerine. The increasing prevalence of syphilis suggests ongoing high-risk sexual behaviour and underscores the need for screening and treatment for this infection at the time of delivery of HIV services.
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Affiliation(s)
- Frits van Griensven
- Institute of HIV Research and Innovation, Bangkok, Thailand
- Department of Epidemiology and Biostatistics, University of California at San Francisco, San Francisco, CA, USA
- Center of Excellence in Transgender Health, Chulalongkorn University, Bangkok, Thailand
| | - Rena Janamnuaysook
- Institute of HIV Research and Innovation, Bangkok, Thailand
- Center of Excellence in Transgender Health, Chulalongkorn University, Bangkok, Thailand
| | | | - Jitsupa Peelay
- Institute of HIV Research and Innovation, Bangkok, Thailand
| | - Kritima Samitpol
- Institute of HIV Research and Innovation, Bangkok, Thailand
- Center of Excellence in Transgender Health, Chulalongkorn University, Bangkok, Thailand
| | | | | | | | | | | | - Nittaya Phanuphak
- Institute of HIV Research and Innovation, Bangkok, Thailand
- Center of Excellence in Transgender Health, Chulalongkorn University, Bangkok, Thailand
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22
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Wang Y, Zhang W, Bao D, Ong JJ, Tucker JD, Ye R, Zheng H, Yang B, Wang C. Social network distribution of syphilis self-testing among men who have sex with men in China: study protocol for a cluster randomized control trial. BMC Infect Dis 2021; 21:491. [PMID: 34044760 PMCID: PMC8161568 DOI: 10.1186/s12879-021-06137-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 05/04/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Syphilis is a common sexually transmitted infection (STI) among men who have sex with men (MSM). Increasing syphilis testing is important to syphilis control. However, in low- and middle-income countries like China, syphilis testing rates remain low among MSM. We describe a randomized controlled trial protocol to examine the effectiveness of social network distribution approaches of syphilis self-testing among MSM in China. METHODS We will recruit index and alter MSM. Indexes will be eligible if they: are born biologically male; aged 18 years or above; ever had sex with another man; are willing to distribute syphilis testing packages or referral links to their alters; and willing to provide personal contact information for future follow-up. Three hundred MSM will be recruited and randomly assigned in a 1:1:1 ratio into three arms: standard of care (control arm); standard syphilis self-testing (SST) delivery arm; and referral link SST delivery arm. Indexes will distribute SST packages or referral links to encourage alters to receive syphilis testing. All indexes will complete a baseline survey and a 3-month follow-up survey. Syphilis self-test results will be determined by photo verification via a digital platform. The primary outcome is the mean number of alters who returned verified syphilis testing results per index in each arm. DISCUSSION The trial findings will provide practical implications in strengthening syphilis self-testing distribution and increasing syphilis testing uptake among MSM in China. This study also empowers MSM community in expanding syphilis testing by using their own social network. TRIAL REGISTRATION Chinese Clinical Trial Registry, ChiCTR2000036988 . Registered 26 August 2020 - Retrospectively registered.
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Affiliation(s)
- Yajie Wang
- Dermatology Hospital of Southern Medical University, Guangzhou, Guangdong, China.,Southern Medical University Institute for Global Health and Sexually Transmitted Diseases, Guangzhou, Guangdong, China.,Guangdong Provincial Center for Skin Disease and STI Control, Guangzhou, Guangdong, China
| | - Wei Zhang
- University of North Carolina at Chapel Hill, Project-China, Guangzhou, Guangdong, China
| | - Dongping Bao
- Southern Medical University Institute for Global Health and Sexually Transmitted Diseases, Guangzhou, Guangdong, China
| | - Jason J Ong
- Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, UK.,Central Clinical School, Monash University, Melbourne, Victoria, Australia
| | - Joseph D Tucker
- University of North Carolina at Chapel Hill, Project-China, Guangzhou, Guangdong, China.,Central Clinical School, Monash University, Melbourne, Victoria, Australia.,Institute for Global Health and Infectious Diseases, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, USA
| | - Rouxuan Ye
- Department of Biostatistics, Southern Medical University, Guangzhou, Guangdong, China
| | - Heping Zheng
- Dermatology Hospital of Southern Medical University, Guangzhou, Guangdong, China.,Southern Medical University Institute for Global Health and Sexually Transmitted Diseases, Guangzhou, Guangdong, China.,Guangdong Provincial Center for Skin Disease and STI Control, Guangzhou, Guangdong, China
| | - Bin Yang
- Dermatology Hospital of Southern Medical University, Guangzhou, Guangdong, China.,Southern Medical University Institute for Global Health and Sexually Transmitted Diseases, Guangzhou, Guangdong, China.,Guangdong Provincial Center for Skin Disease and STI Control, Guangzhou, Guangdong, China
| | - Cheng Wang
- Dermatology Hospital of Southern Medical University, Guangzhou, Guangdong, China. .,Southern Medical University Institute for Global Health and Sexually Transmitted Diseases, Guangzhou, Guangdong, China. .,Guangdong Provincial Center for Skin Disease and STI Control, Guangzhou, Guangdong, China.
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23
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Sri-Pathmanathan C, Nhamo D, Mamvuto T, Chapwanya G, Terris-Prestholt F, Mahaka I, Marks M, Tucker JD. Syphilis self-testing to expand test uptake among men who have sex with men: a theoretically informed mixed methods study in Zimbabwe. Sex Transm Infect 2021; 98:197-202. [PMID: 33927008 PMCID: PMC7612625 DOI: 10.1136/sextrans-2020-054911] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 03/22/2021] [Accepted: 04/04/2021] [Indexed: 11/22/2022] Open
Abstract
Objectives Self-testing for STIs such as HIV and syphilis may empower sexual minorities and expand uptake of STI testing. While much is known about HIV self-testing (HIVST), less is known about syphilis self-testing, particularly in low-income settings. The objective of this study is to determine context-specific facilitators and barriers for self-testing and to assess the usability of syphilis self-testing in Zimbabwe among men who have sex with men (MSM). Methods This mixed methods study was conducted in Harare as part of a larger syphilis self-testing trial. The study included in-depth interviews (phase I) followed by usability testing and a second interview (phase II). In-depth interviews were conducted with MSM and key informants prior to syphilis self-testing. The same MSM then used the syphilis self-test, quantitatively assessed its usability and participated in a second in-depth interview. Phase I data were analysed using a thematic approach, guided by an adapted social ecological model conceptual framework. Phase II interviews were analysed using rapid assessment procedure methodology, and usability was assessed using a pre-established index, adapted from existing HIVST scales. Results Twenty MSM and 10 key informants were recruited for phase I in-depth interviews, and 16 of these MSM participated in phase II by completing a syphilis self-test kit. Facilitating factors for self-testing included the potential for increased privacy, convenience, autonomy, and avoidance of social and healthcare provider stigma. Barriers included the fear to test and uncertainty about linkage to care and treatment. Data from the Usability Index suggested high usability (89.6% on a 0–100 scale) among the men who received the self-test. Conclusions MSM in Zimbabwe were willing to use syphilis self-test kits and many of the barriers and facilitators were similar to those observed for HIVST. Syphilis self-testing may increase syphilis test uptake among sexual minorities in Zimbabwe and other low-income and middle-income countries.
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Affiliation(s)
- Clarisse Sri-Pathmanathan
- Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, UK
| | | | | | | | - Fern Terris-Prestholt
- Faculty of Public Health and Policy, London School of Hygiene & Tropical Medicine, London, UK
| | | | - Michael Marks
- Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, UK
| | - Joseph D Tucker
- Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, UK.,Institute of Global Health and Infectious Diseases, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
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24
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Zalazar V, Frola CE, Gun A, Radusky PD, Panis NK, Cardozo NF, Fabian S, Duarte MI, Aristegui I, Cahn P, Sued O. Acceptability of dual HIV/syphilis rapid test in community- and home-based testing strategy among transgender women in Buenos Aires, Argentina. Int J STD AIDS 2021; 32:501-509. [PMID: 33533303 DOI: 10.1177/0956462420979852] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Little is known of acceptability and feasibility of dual HIV and syphilis rapid tests in community- and home-based provider-initiated strategies among transgender women (TGW), in Latin America. Objectives were (1) to assess the acceptability of this strategy and, (2) to determine the percentage of positive results of HIV and syphilis, analyze the correlates of HIV or syphilis positive results, and measure the rates of effective referral and treatment completion among TGW. METHODS A multidisciplinary team tested 89 TGW in Buenos Aires. An acceptability survey was administered after the HIV/syphilis Duo test was used. All confirmed cases were referred for treatment initiation. RESULTS We found high levels of acceptability (98.8%) of this strategy among TGW. However, only 60.7% preferred simultaneous HIV and syphilis diagnosis test. Moreover, we found 9% of positive results of HIV, 51.7% of syphilis, and 3.4% of positive results for both infections. Only not being tested before was associated with an HIV positive result, and only low level of education was associated with a positive syphilis result. Among 8 TGW who tested positive for HIV, 37.5% (n = 3) started antiretroviral therapy. Of 46 who tested positive for syphilis, only 73.9% (n = 34) were effectively referred and from 23 who started treatment, only 39.1% completed it. CONCLUSIONS Community- and home-based dual HIV and syphilis rapid test is a feasible and highly acceptable approach for this hard-to-reach population. Implementing similar strategies could improve screening uptake and accessibility. However, these results highlight the need to improve strategies for treatment uptake, in order to reduce morbidity and risk of onward transmission.
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Affiliation(s)
- Virginia Zalazar
- Research Department, 541285Fundación Huésped, Buenos Aires, Argentina
| | - Claudia E Frola
- Research Department, 541285Fundación Huésped, Buenos Aires, Argentina.,Infectious Diseases Unit, 62916Hospital Juan A. Fernández, Buenos Aires, Argentina
| | - Ana Gun
- Research Department, 541285Fundación Huésped, Buenos Aires, Argentina
| | - Pablo D Radusky
- Research Department, 541285Fundación Huésped, Buenos Aires, Argentina.,Facultad de Psicologia, 28196Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Natalia K Panis
- Research Department, 541285Fundación Huésped, Buenos Aires, Argentina
| | - Nadir F Cardozo
- Research Department, 541285Fundación Huésped, Buenos Aires, Argentina.,Asociación de Travestis, Transexuales y Transgéneros de Argentina (A.T.T.T.A.), Buenos Aires, Argentina.,Red Latinoamericana y del Caribe de Personas Trans, RedLacTrans, Argentina.,Casa Trans, Buenos Aires, Argentina
| | - Solange Fabian
- Research Department, 541285Fundación Huésped, Buenos Aires, Argentina.,Asociación Civil Gondolin, Buenos Aires, Argentina
| | - Mariana I Duarte
- Research Department, 541285Fundación Huésped, Buenos Aires, Argentina.,Asociación de Travestis, Transexuales y Transgéneros de Argentina (A.T.T.T.A.), Buenos Aires, Argentina.,Red Latinoamericana y del Caribe de Personas Trans, RedLacTrans, Argentina.,Casa Trans, Buenos Aires, Argentina
| | - Inés Aristegui
- Research Department, 541285Fundación Huésped, Buenos Aires, Argentina.,Centro de Investigaciones en Psicología, 28206Universidad de Palermo, Buenos Aires, Argentina
| | - Pedro Cahn
- Research Department, 541285Fundación Huésped, Buenos Aires, Argentina
| | - Omar Sued
- Research Department, 541285Fundación Huésped, Buenos Aires, Argentina
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25
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Wang C, Cheng W, Li C, Tang W, Ong JJ, Smith MK, Fu H, Marks M, Nie J, Zheng H, Tucker JD, Yang B. Syphilis Self-testing: A Nationwide Pragmatic Study Among Men Who Have Sex With Men in China. Clin Infect Dis 2021; 70:2178-2186. [PMID: 31260513 DOI: 10.1093/cid/ciz603] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 06/28/2019] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Syphilis self-testing may help expand syphilis testing among men who have sex with men (MSM). China has rapidly scaled up human immunodeficiency virus (HIV) self-testing, creating an opportunity for integrated syphilis self-testing. However, there is a limited literature on implementing syphilis self-testing. METHODS A cross-sectional online survey was conducted among Chinese MSM in 2018. Participants completed a survey instrument including sociodemographic characteristics, sexual behaviors, syphilis self-testing, and HIV self-testing history. Multivariable logistic regression was conducted to identify correlates of syphilis self-testing. We also recorded potential harms associated with syphilis self-testing. RESULTS Six hundred ninety-nine MSM from 89 cities in 21 provinces in China completed the study. A total of 361/699 (51.7%) men tested for syphilis, of whom 174/699 (24.9%) men used syphilis self-testing. Among 174 who had self-tested, 90 (51.7%) reported that the self-test was their first syphilis test and 161 (92.5%) reported that they undertook syphilis self-testing together with HIV self-testing. After adjusting for covariates, syphilis self-testing was correlated with disclosure of sexual orientation to family or friends (adjusted odds ratio [aOR], 1.90; 95% confidence interval [CI], 1.32-2.73), reporting 2-5 male sexual partners (aOR, 1.81; 95% CI, 1.04-3.16), HIV self-testing (aOR, 39.90; 95% CI, 17.00-93.61), and never tested for syphilis in the hospital (aOR, 2.96; 95% CI, 1.86-4.72). Self-reported harms associated with syphilis self-testing were minimal. CONCLUSIONS Scaling up syphilis self-testing could complement facility-based testing in China among MSM. Self-testing may increase first-time testing and has limited harms. Our findings suggest that syphilis self-testing could be integrated into HIV self-testing services.
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Affiliation(s)
- Cheng Wang
- Dermatology Hospital of Southern Medical University, Guangzhou, China.,Guangdong Center for Skin Diseases and Sexually Transmitted Infection Control, Guangzhou, China.,University of North Carolina Project-China, Guangzhou, China
| | - Weibin Cheng
- Dermatology Hospital of Southern Medical University, Guangzhou, China.,Guangdong Center for Skin Diseases and Sexually Transmitted Infection Control, Guangzhou, China
| | - Changchang Li
- Dermatology Hospital of Southern Medical University, Guangzhou, China.,Guangdong Center for Skin Diseases and Sexually Transmitted Infection Control, Guangzhou, China
| | - Weiming Tang
- Dermatology Hospital of Southern Medical University, Guangzhou, China.,Guangdong Center for Skin Diseases and Sexually Transmitted Infection Control, Guangzhou, China.,University of North Carolina Project-China, Guangzhou, China
| | - Jason J Ong
- Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, United Kingdom.,Central Clinical School, Monash University, Melbourne, Australia
| | - M Kumi Smith
- Division of Epidemiology and Community Health, University of Minnesota Twin Cities, Minneapolis
| | - Hongyun Fu
- Division of Community Health and Research, Eastern Virginia Medical School, Norfolk
| | - Michael Marks
- Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, United Kingdom
| | - Juan Nie
- Dermatology Hospital of Southern Medical University, Guangzhou, China.,Guangdong Center for Skin Diseases and Sexually Transmitted Infection Control, Guangzhou, China
| | - Heping Zheng
- Dermatology Hospital of Southern Medical University, Guangzhou, China.,Guangdong Center for Skin Diseases and Sexually Transmitted Infection Control, Guangzhou, China.,University of North Carolina Project-China, Guangzhou, China
| | - Joseph D Tucker
- University of North Carolina Project-China, Guangzhou, China.,Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, United Kingdom.,Institute for Global Health and Infectious Diseases, School of Medicine, University of North Carolina at Chapel Hill
| | - Bin Yang
- Dermatology Hospital of Southern Medical University, Guangzhou, China.,Guangdong Center for Skin Diseases and Sexually Transmitted Infection Control, Guangzhou, China
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26
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Maple PAC, Sikora K. How Useful is COVID-19 Antibody Testing - A Current Assessment for Oncologists. Clin Oncol (R Coll Radiol) 2021; 33:e73-e81. [PMID: 33350940 PMCID: PMC7553121 DOI: 10.1016/j.clon.2020.10.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 09/25/2020] [Accepted: 10/06/2020] [Indexed: 12/28/2022]
Abstract
The coronavirus disease 2019 (COVID-19) pandemic due to infection by a new human coronavirus, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has seriously disrupted the provision of oncology services and their uptake. Antibody testing, both at an individual level and of populations, has been widely viewed to be a key activity for guiding the options for treatment of high-risk individuals, as well as the implementation of safe control of infection measures. Ideally, the detection of a specific antibody should signify that all individuals tested have been infected by SARS-CoV-2 and that in the case of specific IgG that they are immune to further infection. This would enable SARS-CoV-2-infected individuals to be appropriately managed and healthcare workers shown to be immune to return to work where they would no longer pose a risk to their patients or be at risk themselves. Unfortunately, this is not the case for COVID-19, where it has been shown that immunity may not be protective, and seroconversion delayed or absent. The variability in antibody test performance, particularly that of lateral flow assays, has caused confusion for the public and healthcare professions alike. Many antibody test devices have been made available without independent evaluations and these may lack both adequate sensitivity and specificity. This review seeks to educate healthcare workers, particularly those working in oncology, of the current benefits and limitations of SARS-CoV-2 antibody testing.
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Affiliation(s)
- P A C Maple
- Clinical Neurology Research Group, Division of Clinical Neuroscience, University of Nottingham School of Medicine, Queen's Medical Centre, Nottingham, UK
| | - K Sikora
- Medical Division, Rutherford Cancer Centres, London, UK.
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27
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Wang C, Wang YJ, Tucker JD, Xiong MZ, Fu HY, Smith MK, Tang WM, Ong JJ, Zheng HP, Yang B. Correlates of HIV self-testing among female sex workers in China: implications for expanding HIV screening. Infect Dis Poverty 2020; 9:147. [PMID: 33092641 PMCID: PMC7583185 DOI: 10.1186/s40249-020-00765-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 10/14/2020] [Indexed: 11/29/2022] Open
Abstract
Background Human immunodeficiency virus (HIV) self-testing may help improve test uptake among female sex workers. China has implemented many HIV self-testing programs among men who have sex with men, creating an opportunity for promotion among female sex workers. However, there is a limited literature on examining HIV self-testing among female sex workers. This study aimed to examine HIV self-testing experiences and its determinants among female sex workers in China. Methods A venue-based, cross-sectional study was conducted among Chinese female sex workers in 2019. Participants completed a survey including social-demographic characteristics, sexual behaviors, and HIV self-testing history, the distribution of which were analyzed using descriptive analysis. Multivariable logistic regression was conducted to identify associations with HIV self-testing. Results Among 1287 Chinese female sex workers, 1072 (83.3%, 95% confidence interval [CI] 81.2–85.3%) had ever tested for HIV, and 103 (8.0%, 95% CI 6.6–9.6%) had ever used HIV self-testing. More than half reported that the self-test was their first HIV test (59.2%, 61/103), around one-fifth reported HIV self-testing results influenced the price of sex (21.4%, 22/103). A minority of individuals reported ever experiencing pressure to undertake HIV self-testing (6.8%, 7/103). After adjusting for covariates, HIV self-testing was positively associated with receiving anal sex in the past month (adjusted odds ratio [aOR] = 2.2, 95% CI 1.4–3.5), using drugs before or during sex (aOR = 2.8, 95% CI 1.8–4.5), injecting drugs in the past 6 months (aOR = 2.6, 95% CI 1.2–6.0), being diagnosed with other sexually transmitted infections (aOR = 1.6, 95% CI 1.0–2.5), tested for other sexually transmitted infections in the past six months (aOR = 3.4, 95% CI 2.1–5.5), ever tested in the hospital (aOR = 3.4, 95% CI 2.0–5.6), and ever tested in the community (aOR = 1.5, 95% CI 1.2–1.9). Conclusions Our findings suggest that HIV self-testing could expand overall HIV testing uptake, increase HIV testing frequency, reach sub-groups of high-risk female sex workers and has limited potential harms among female sex workers. HIV self-testing should be incorporated among Chinese female sex workers as a complement to facility-based HIV testing services.
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Affiliation(s)
- Cheng Wang
- Dermatology Hospital of Southern Medical University, Guangzhou, Guangdong, China. .,Southern Medical University Institute for Global Health and Sexually Transmitted Diseases, Guangzhou, Guangdong, China.
| | - Ya-Jie Wang
- Dermatology Hospital of Southern Medical University, Guangzhou, Guangdong, China.,Southern Medical University Institute for Global Health and Sexually Transmitted Diseases, Guangzhou, Guangdong, China
| | - Joseph D Tucker
- University of North Carolina Project-China, Guangzhou, Guangdong, China.,Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, UK.,Institute for Global Health and Infectious Diseases, School of Medicine, University of North Carolina At Chapel Hill, Chapel Hill, USA
| | - Ming-Zhou Xiong
- Dermatology Hospital of Southern Medical University, Guangzhou, Guangdong, China.,Southern Medical University Institute for Global Health and Sexually Transmitted Diseases, Guangzhou, Guangdong, China
| | - Hong-Yun Fu
- Division of Community Health and Research, Eastern Virginia Medical School, Norfolk, VA, USA
| | - M Kumi Smith
- Division of Epidemiology and Community Health, University of Minnesota Twin Cities, Minneapolis, USA
| | - Wei-Ming Tang
- Dermatology Hospital of Southern Medical University, Guangzhou, Guangdong, China.,Southern Medical University Institute for Global Health and Sexually Transmitted Diseases, Guangzhou, Guangdong, China.,University of North Carolina Project-China, Guangzhou, Guangdong, China
| | - Jason J Ong
- Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, UK.,Central Clinical School, Monash University, Victoria, Melbourne, Australia
| | - He-Ping Zheng
- Dermatology Hospital of Southern Medical University, Guangzhou, Guangdong, China.,Southern Medical University Institute for Global Health and Sexually Transmitted Diseases, Guangzhou, Guangdong, China
| | - Bin Yang
- Dermatology Hospital of Southern Medical University, Guangzhou, Guangdong, China.,Southern Medical University Institute for Global Health and Sexually Transmitted Diseases, Guangzhou, Guangdong, China
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Nishiki S, Arima Y, Yamagishi T, Hamada T, Takahashi T, Sunagawa T, Matsui T, Oishi K, Ohnishi M. Syphilis in heterosexual women: case characteristics and risk factors for recent syphilis infection in Tokyo, Japan, 2017-2018. Int J STD AIDS 2020; 31:1272-1281. [PMID: 33059539 DOI: 10.1177/0956462420945928] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In response to an increase in heterosexual syphilis notifications in Tokyo, we conducted a questionnaire-based case-control study among women aged ≥20 years and sexually active in the past six months who sought a syphilis test in Tokyo during 2017-2018. Cases were women diagnosed as recent syphilis infection based on serological tests. Controls were serologically non-reactive or those with only a past syphilis infection. We described cases and assessed for risk factors of recent syphilis using logistic regression. A total of 524 women (60 cases, 464 controls) were enrolled. Notably, among cases, 10 (16.7%) were students, 3 (5.0%) had a history of syphilis, and 14 (23.3%) had a single sex partner in the past six months. Female sex worker (FSW) status was strongly associated with syphilis (odds ratio [OR] = 3.40; 95% confidence interval [CI] = 1.96-5.90). In multivariable analysis, recent syphilis was associated with inconsistent condom use for vaginal/anal sex among FSWs (adjusted OR [aOR] = 3.42; 95%CI = 0.92-12.70) and among non-FSWs, with younger age (aOR = 0.36; 95%CI = 0.19-0.70; increase per category from 20-24, 25-29 to ≥30 years) and ≤high school education (aOR = 5.24; 95%CI = 1.95-14.10). A notable proportion of cases were those with first time infection and those with only a single partner. Moreover, risk factors differed between FSWs and non-FSWs, and a multi-pronged approach to prevent syphilis is required.
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Affiliation(s)
- Shingo Nishiki
- Field Epidemiology Training Program, National Institute of Infectious Diseases, Tokyo, Japan.,Division of Environmental and Preventive Medicine, Department of Social Medicine, Graduate School of Medicine, Tottori University, Tottori, Japan
| | - Yuzo Arima
- Infectious Disease Surveillance Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Takuya Yamagishi
- Infectious Disease Surveillance Center, National Institute of Infectious Diseases, Tokyo, Japan
| | | | - Takuri Takahashi
- Infectious Disease Surveillance Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Tomimasa Sunagawa
- Infectious Disease Surveillance Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Tamano Matsui
- Infectious Disease Surveillance Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Kazunori Oishi
- Infectious Disease Surveillance Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Makoto Ohnishi
- Department of Bacteriology I, National Institute of Infectious Diseases, Tokyo, Japan
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29
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Yi S, Prem K, Chhoun P, Chann N, Tuot S, Mun P, Mburu G. Syphilis infection among people who use and inject drugs in Cambodia: a cross-sectional study using the respondent-driven sampling method. Int J STD AIDS 2020; 31:832-840. [PMID: 32623980 DOI: 10.1177/0956462420929132] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This cross-sectional study explored the prevalence and correlates of syphilis infection among people who use and inject drugs (PWUD/PWID) in Cambodia. Data were collected in 2017 from 1,677 PWUD/PWID living in the capital city of Phnom Penh and 11 other major provinces using the respondent-driven sampling method. The SD Bioline HIV/Syphilis Duo test was used to determine human immunodeficiency virus (HIV) and current or past syphilis infection. A multivariable logistic regression analysis was conducted to identify risk factors associated with current or past syphilis infection. The prevalence of current or past syphilis infection was 3.8% (95% confidence interval = 2.4-4.6). After adjustment, current or past syphilis infection remained positively associated with being female, living on the streets, having an average monthly income of US$100-299, having transactional sex in the past three months, and having been to a rehabilitation centre in the past 12 months. Current or past syphilis infection was negatively associated with having attained at least high school level of formal education. The findings indicate vulnerability to syphilis infection among PWUD/PWID in Cambodia, particularly among subpopulations who are more marginalized. Syphilis prevention and control programmes should be systematically integrated into HIV and sexually transmitted infection policy and services in the country.
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Affiliation(s)
- Siyan Yi
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore, Singapore.,KHANA Center for Population Health Research, Phnom Penh, Cambodia.,Center for Global Health Research, Touro University California, Vallejo, CA, USA.,School of Public Health, National Institute of Public Health, Phnom Penh, Cambodia
| | - Kiesha Prem
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore, Singapore.,Department of Infectious Disease Epidemiology, Faculty of Epidemiology and Population Health, London, School of Hygiene & Tropical Medicine, London, UK
| | - Pheak Chhoun
- KHANA Center for Population Health Research, Phnom Penh, Cambodia
| | - Navy Chann
- National Center for HIV/AIDS, Dermatology and STD, Phnom Penh, Cambodia
| | - Sovannary Tuot
- KHANA Center for Population Health Research, Phnom Penh, Cambodia
| | - Phalkun Mun
- National Center for HIV/AIDS, Dermatology and STD, Phnom Penh, Cambodia
| | - Gitau Mburu
- Centre for Global Health Policy, University of Sussex, Brighton, UK
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30
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Promoting routine syphilis screening among men who have sex with men in China: study protocol for a randomised controlled trial of syphilis self-testing and lottery incentive. BMC Infect Dis 2020; 20:455. [PMID: 32600260 PMCID: PMC7325146 DOI: 10.1186/s12879-020-05188-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 06/22/2020] [Indexed: 01/30/2023] Open
Abstract
BACKGROUND Men who have sex with men (MSM) bear a high burden of syphilis infection. Expanding syphilis testing to improve timely diagnosis and treatment is critical to improve syphilis control. However, syphilis testing rates remain low among MSM, particularly in low- and middle-income countries. We describe the protocol for a randomised controlled trial (RCT) to assess whether provision of syphilis self-testing services can increase the uptake of syphilis testing among MSM in China. METHODS Four hundred forty-four high-risk MSM will be recruited online and randomized in a 1:1:1 ratio to (1) standard syphilis self-testing arm; (2) a self-testing arm program enhanced with crowdsourcing and a lottery-based incentive, and (3) a standard of care (control). Self-testing services include a free syphilis self-test kit through the mail at monthly intervals. Participants in the lottery incentive arm will additionally receive health promotion materials generated from an open crowdsourcing contest and be given a lottery draw with a 10% chance to win 100 RMB (approximately 15 US Dollars) upon confirmed completion of syphilis testing. Syphilis self-test kits have step-by-step instructions and an instructional video. This is a non-blinded, open-label, parallel RCT. Participants in each arm will be followed-up at three and 6 months through WeChat (a social media app like Facebook messenger). Confirmation of syphilis self-test use will be determined by requiring participants to submit a photo of the used test kit to study staff via secure data messaging. Both self-testing and facility-based testing will be ascertained by sending a secure photographic image of the completed kit through an existing digital platform. The primary outcome is the proportion of participants who tested for syphilis in the past 3 months. DISCUSSION Findings from this study will provide much needed insight on the impact of syphilis self-testing on promoting routine syphilis screening among MSM. The findings will also contribute to our understanding of the safety, effectiveness and acceptability of syphilis self-testing. These findings will have important implications for self-testing policy, both in China and internationally. TRIAL REGISTRATION ChiCTR1900022409 (10 April, 2019).
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31
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Factors Associated With Increased Syphilis Screening Among People Living With Human Immunodeficiency Virus. Sex Transm Dis 2020; 46:521-526. [PMID: 31295220 DOI: 10.1097/olq.0000000000001015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
BACKGROUND Antiretroviral therapy effectively reduces the risk of human immunodeficiency virus transmission, but in the context of undetectable equals untransmittable and decreased condom use, rates of syphilis are increasing. In Oregon, syphilis has risen over 20-fold in the past decade, from less than 30 to approximately 600 cases annually during 2016 and 2017. Although many cases are among people living with human immunodeficiency virus infection (PLWH), screening for syphilis among PLWH is often lacking. The objective of this study was to estimate the prevalence of past-year syphilis testing among PLWH in Oregon to identify facility-level and individual-level factors associated with testing. METHODS We examined 2015 to 2016 Medical Monitoring Project interview and medical records data in Oregon and conducted supplemental interviews with participants' medical providers. We used generalized mixed effects models to identify factors associated with syphilis screening. RESULTS Sixty-nine percent of Medical Monitoring Project participants had past-year syphilis screening. Patients receiving care from facilities with written sexually transmitted infection screening policies were far more likely to be screened than those receiving care from facilities without written policies (94% vs. 43%, P < 0.001). Participants who identified as male were more likely to have been tested, even after adjusting for facility-level characteristics. Clustering within facility accounted for about 15% of the unexplained variability in the adjusted mixed effects models. CONCLUSIONS Written sexually transmitted infection screening policies at medical facilities appear to be an important tool for ensuring syphilis screening occurs as recommended to prevent the continued rise in syphilis.
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32
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Ang LW, Wong CS, Ng OT, Leo YS. Incidence of syphilis among HIV-infected men in Singapore, 2006-2017: temporal trends and associated risk factors. Sex Transm Infect 2020; 96:293-299. [PMID: 31371448 PMCID: PMC7279196 DOI: 10.1136/sextrans-2019-054163] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 07/11/2019] [Accepted: 07/17/2019] [Indexed: 12/18/2022] Open
Abstract
OBJECTIVE There have been recent reports globally on substantial increase in syphilis diagnoses particularly among high-risk men. The aim of this study was to assess temporal trends of incident syphilis and associated risk factors among HIV-infected men in Singapore. METHODS We conducted retrospective cohort analysis using the clinical database maintained by the Clinical HIV Programme at the National Centre for Infectious Diseases, Singapore. HIV-infected men with a negative syphilis result at baseline who had undergone at least one subsequent test in 2006-2017 were included. Factors associated with incident syphilis were investigated using Cox proportional hazards regression analyses. RESULTS A total of 1069 HIV-infected men were tested for syphilis at least once following their negative baseline test during the 12-year period, and they contributed 4284 person-years of follow-up (PYFU). There were 266 cases of incident syphilis, giving an overall incidence of 6.21 per 100 PYFU (95% CI 5.49-7.00). The incidence of syphilis per 100 PYFU increased from 1.21 (95% CI 0.33 to 3.10) in 2010 to 26.04 (95% CI 19.97 to 33.40) in 2017. In the multivariable model, risk factors for syphilis seroconversion were: age 15-24 years at HIV diagnosis (adjusted HR (aHR) 1.64, 95% CI 1.05 to 2.56) versus ≥45 years, being Chinese (aHR 1.82, 95% CI 1.01 to 3.29) versus Indian and other minority ethnic groups, men having sex with men (MSM) (aHR 3.29, 95% CI 2.22 to 4.87) versus heterosexuals, and HIV diagnosis in later periods of 2009-2011 (aHR 1.96, 95% CI 1.41 to 2.74), 2012-2014 (aHR 3.96, 95% CI 2.68 to 5.83) and 2015-2017 (aHR 7.94, 95% CI 4.52 to 13.95) versus 2006-2008. CONCLUSION The annual incidence rate of syphilis in HIV-infected men was on the rise, and it was consistently higher among MSM than in heterosexual men. The findings supported regular screening for syphilis and enhanced behavioural interventions in Singapore.
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Affiliation(s)
- Li Wei Ang
- National Public Health and Epidemiology Unit, National Centre for Infectious Diseases, Singapore
| | - Chen Seong Wong
- National Public Health and Epidemiology Unit, National Centre for Infectious Diseases, Singapore
| | - Oon Tek Ng
- National Public Health and Epidemiology Unit, National Centre for Infectious Diseases, Singapore
| | - Yee Sin Leo
- National Public Health and Epidemiology Unit, National Centre for Infectious Diseases, Singapore
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33
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Ogale Y, Yeh PT, Kennedy CE, Toskin I, Narasimhan M. Self-collection of samples as an additional approach to deliver testing services for sexually transmitted infections: a systematic review and meta-analysis. BMJ Glob Health 2019; 4:e001349. [PMID: 31139454 PMCID: PMC6509609 DOI: 10.1136/bmjgh-2018-001349] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 03/28/2019] [Accepted: 03/30/2019] [Indexed: 11/20/2022] Open
Abstract
Background Self-collection of samples for diagnostic testing offers the advantages of patient autonomy, confidentiality and convenience. Despite data showing their feasibility and accuracy, there is a need to better understand how to implement such interventions for sexually transmitted infections (STIs). To support WHO guidelines on self-care interventions, we conducted a systematic review to investigate whether self-collection of samples should be made available as an additional approach to deliver STI testing services. Methods Peer-reviewed studies were included if they compared individuals who self-collected samples for chlamydia, gonorrhoea, syphilis and/or trichomonas testing to individuals who had samples collected by clinicians on the following outcomes: uptake/frequency of STI testing, social harms/adverse events, positive yield (case finding), linkage to clinical assessment/treatment and reported sexual risk behaviour. We searched PubMed, CINAHL, LILACS and EMBASE for articles published through July 2018. Risk of bias was assessed using the Cochrane tool for randomised controlled trials (RCTs) and the Evidence Project tool for non-RCTs. Meta-analysis was conducted using random effects models to generate pooled estimates of relative risk (RR). Results Eleven studies, including five RCTs and six observational studies with a total of 202 745 participants, met inclusion criteria. Studies were conducted in Australia, Denmark and the USA. Meta-analysis found that programmes offering self-collection of samples increased overall uptake of STI testing services (RR: 2.941, 95% CI 1.188 to 7.281) and case finding (RR: 2.166, 95% CI 1.043 to 4.498). No studies reported measuring STI testing frequency, social harms/adverse events, linkage to care or sexual risk behaviour. Discussion While greater diversity in study designs, outcomes and settings would strengthen the evidence base, findings from this review suggest that self-collection of STI samples could be an effective additional strategy to increase STI testing uptake. Prospero registration number PROSPERO CRD42018114866.
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Affiliation(s)
- Yasmin Ogale
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Ping Teresa Yeh
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Caitlin E Kennedy
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Igor Toskin
- Department of Reproductive Health and Research, Organisation mondiale de la Santé, Geneve, Switzerland
| | - Manjulaa Narasimhan
- Department of Reproductive Health and Research, Organisation mondiale de la Santé, Geneve, Switzerland
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