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Meneses-León J, Hernández-Salazar S, Torres-Ibarra L, Hernández-López R, Rivera-Paredez B, Robles-Rivera K, Lazcano-Ponce E, García-Vera A, Godínez-Pérez M, León-Maldonado L, Salmerón J. Performance of urine samples compared to cervical samples for detection of precancer lesions among HPV-positive women attending colposcopy clinic in Mexico City. Cancer Causes Control 2024:10.1007/s10552-024-01852-w. [PMID: 38368574 DOI: 10.1007/s10552-024-01852-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 01/14/2024] [Indexed: 02/19/2024]
Abstract
BACKGROUND High-risk human papillomavirus (hrHPV) detection in self-collected urine samples (SeCUS) may be a promising alternative for cervical cancer screening because of its greater acceptability, as long as it can offer comparable sensitivity to clinician-collected cervical samples (CCoS) for detecting precancer lesions. OBJECTIVE To evaluate the performance of the SeCUS compared to that of the CCoS for cervical intraepithelial neoplasia grade 3 (CIN3) detection among hrHPV-positive women receiving colposcopy in Mexico City using different specific extended HPV typing procedures: HPV16/18, HPV16/18/35/39/68 or HPV16/18/35/39/68/31. METHODS From March 2017 to August 2018, 4,158 female users of the cervical cancer screening program at Tlalpan Sanitary Jurisdiction in Mexico City were invited to participate in the FRIDA-Tlalpan study. All participants provided ≥ 30 mL of SeCUS, and then a CCoS was obtained with Cervex-Brush®, which was used for hrHPV typing. Participants who tested positive for hrHPV in CCoS were referred for colposcopy for diagnostic confirmation, and all SeCUS of these women were also tested for hrHPV typing. RESULTS In total, 561 hrHPV-positive women were identified by CCoS via colposcopy, and 82.2% of the SeCUS of these women were also hrHPV positive. From both CCoS and SeCUS, 7 cases of CIN3 were detected. Considering HPV16/18 typing, CCoS and SeCUS detected 4 cases of CIN3, but after HPV16/18/35/39/68/31 extension typing, both CCoS and SeCUS detected all 7 of the CIN3 cases among the hrHPV-positive women. CONCLUSIONS Using extended hrHPV typing based on HPV16/18/35/39/68/31, our results suggest that the performance of SeCUS may be equivalent to that of CCoS for detecting CIN3 lesions. Although our results are inconclusive, they support the hypothesis that SeCUS may be an attractive alternative worthy of further research.
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Affiliation(s)
- Joacim Meneses-León
- Facultad de Medicina, Centro de Investigación en Políticas, Población y Salud, Universidad Nacional Autónoma de México, Mexico, Mexico
| | - Sonia Hernández-Salazar
- Facultad de Medicina, Centro de Investigación en Políticas, Población y Salud, Universidad Nacional Autónoma de México, Mexico, Mexico
| | - Leticia Torres-Ibarra
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, Mexico
| | - Rubí Hernández-López
- Oficina de Análisis del Plan de Salud, Subgerencia Técnica del Plan de Salud, Gerencia de Administración del Plan de Salud, Banco de México, Mexico, Mexico
| | - Berenice Rivera-Paredez
- Facultad de Medicina, Centro de Investigación en Políticas, Población y Salud, Universidad Nacional Autónoma de México, Mexico, Mexico
| | - Karina Robles-Rivera
- Facultad de Medicina, Centro de Investigación en Políticas, Población y Salud, Universidad Nacional Autónoma de México, Mexico, Mexico
| | | | - Alba García-Vera
- Facultad de Medicina, Centro de Investigación en Políticas, Población y Salud, Universidad Nacional Autónoma de México, Mexico, Mexico
| | - Mélany Godínez-Pérez
- Facultad de Medicina, Centro de Investigación en Políticas, Población y Salud, Universidad Nacional Autónoma de México, Mexico, Mexico
| | - Leith León-Maldonado
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, Mexico
| | - Jorge Salmerón
- Facultad de Medicina, Centro de Investigación en Políticas, Población y Salud, Universidad Nacional Autónoma de México, Mexico, Mexico.
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King J, Flores YN, Meneses-León J, Hernández-Salazar S, Robles-Rivera K, Rivera-Paredez B, León-Maldonado L, Hernández-López R, Torres-Ibarra L, Lazcano-Ponce E, Salmerón J. Clinical Performance of hrHPV Primary Screening Using Vaginal versus Cervical Samples to Detect High-grade Intraepithelial Lesions. Cancer Prev Res (Phila) 2023; 16:681-687. [PMID: 37788346 DOI: 10.1158/1940-6207.capr-23-0134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 08/03/2023] [Accepted: 09/29/2023] [Indexed: 10/05/2023]
Abstract
High-risk human papillomavirus (hrHPV) testing is now the most recommended primary method for cervical cancer screening worldwide. Clinician-collected cervical sampling continues to be the main sampling method, but hrHPV vaginal self-sampling is an appealing alternative because of its greater acceptability and potentially higher cost-effectiveness. This study aimed to determine whether hrHPV vaginal self-sampling is comparable with clinician-collected cervical sampling for detecting histologically confirmed high-grade cervical intraepithelial neoplasia (CIN2/3) as part of a cervical cancer screening program in Mexico. We analyzed data from 5,856 women screened during a hrHPV-based screening study. Clinical performance and diagnostic efficiency metrics were estimated for the two sampling methods for the CIN3 and CIN2+ endpoints, using three triage strategies: HPV16/18 genotyping, HPV16/18/33/58 extended genotyping, and HPV16/18/31/33/58 extended genotyping. hrHPV-positivity was found in 801 (13.7%) cervical and 897 (15.3%) vaginal samples. All women with hrHPV-positive samples were referred to colposcopy, which detected 17 total CIN3 cases before considering retrospective triage strategies. Using the HPV16/18/31/33/58 extended genotyping strategy, 245 women had hrHPV-positive cervical samples and 269 had hrHPV-positive vaginal samples. Ten CIN3 cases were detected each among women with hrHPV-positive cervical samples and among those with hrHPV-positive vaginal samples when using this strategy, with no significant differences in sensitivity and specificity observed. We observe that self- and clinician-collected sampling methods are comparable for detecting CIN3 and CIN2+ regardless of the triage strategy used. These findings can help public health officials to develop more cost-effective cervical cancer screening programs that maximize participation. PREVENTION RELEVANCE We found that hrHPV vaginal self-sampling is comparable with hrHPV clinician cervical sampling when using any triage strategy to refer women to colposcopy, so self-sampling is a viable cervical screening method. Therefore, policymakers should consider incorporating self-sampling into cervical screening programs to increase screening coverage and reduce cervical cancer burden. See related Spotlight, p. 649.
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Affiliation(s)
- Jonathan King
- Department of Biostatistics, Fielding School of Public Health, University of California, Los Angeles (UCLA), Los Angeles, California
| | - Yvonne N Flores
- Unidad de Investigación Epidemiológica y en Servicios de Salud, Morelos, Instituto Mexicano del Seguro Social, Colonia Centro, Cuernavaca, México
- Department of Health Policy and Management, Fielding School of Public Health, UCLA, Los Angeles, California
- Center for Cancer Prevention and Control Research and UCLA-Kaiser Permanente Center for Health Equity, Fielding School of Public Health, Jonsson Comprehensive Cancer Center, UCLA, Los Angeles, California
| | - Joacim Meneses-León
- Research Center in Policy, Population and Health, School of Medicine, National Autonomous University of Mexico, Mexico City, Mexico
| | - Sonia Hernández-Salazar
- Research Center in Policy, Population and Health, School of Medicine, National Autonomous University of Mexico, Mexico City, Mexico
| | - Karina Robles-Rivera
- Research Center in Policy, Population and Health, School of Medicine, National Autonomous University of Mexico, Mexico City, Mexico
| | - Berenice Rivera-Paredez
- Research Center in Policy, Population and Health, School of Medicine, National Autonomous University of Mexico, Mexico City, Mexico
| | - Leith León-Maldonado
- Center for Population Health Research, National Institute of Public Health, Cuernavaca, Morelos, Mexico
| | | | - Leticia Torres-Ibarra
- Center for Population Health Research, National Institute of Public Health, Cuernavaca, Morelos, Mexico
| | | | - Jorge Salmerón
- Research Center in Policy, Population and Health, School of Medicine, National Autonomous University of Mexico, Mexico City, Mexico
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Meneses-León J, Hernández-López R, Hernández-Salazar S, Torres-Ibarra L, Rivera-Paredez B, León-Maldonado L, Magis-Rodríguez C, Lazcano-Ponce E, Salmerón J. Prevalence of Chlamydia trachomatis and Neisseria gonorrhoeae infections in Tlaxcala, Mexico. Epidemiol Infect 2023; 151:e198. [PMID: 38012851 PMCID: PMC10728986 DOI: 10.1017/s0950268823001899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 10/30/2023] [Accepted: 11/07/2023] [Indexed: 11/29/2023] Open
Abstract
Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG) are widely recognised as two prevalent sexually transmitted infections that can have detrimental effects on women's reproductive health. Previous research has concentrated on studying high-risk populations, resulting in limited epidemiological data regarding the general population. Therefore, the objective of this study was to estimate the prevalence of CT and NG among women attending public primary health care in Tlaxcala, Mexico. The study sample included 2,396 women already participating in the cervical cancer screening programme, from July to November 2014. After obtaining informed consent, the CT and NG tests were conducted on cervical samples, using a nucleic acid amplification test. We estimate the prevalence with 95% confidence intervals (CIs). Women who tested positive were promptly notified and provided with appropriate treatment. In our study population, CT and NG prevalences were 3.2 (95% CI: 2.6-4.0) and 0.01 (95% CI: 0.01-0.03), respectively. CT prevalence was higher in younger women (age < 40), although the results indicate a low prevalence; due to the potentially significant impact of CT and NG on women's health, we require adequate surveillance, and guaranteeing rapid referral to the correct treatment is a priority for the control of these diseases.
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Affiliation(s)
- Joacim Meneses-León
- Centro de Investigación en Políticas, Población y Salud, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Rubí Hernández-López
- Oficina de Análisis del Plan de Salud, Subgerencia Técnica del Plan de Salud, Gerencia de Administración del Plan de Salud, Banco de México, Ciudad de México, México
| | - Sonia Hernández-Salazar
- Centro de Investigación en Políticas, Población y Salud, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Leticia Torres-Ibarra
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, México
| | - Berenice Rivera-Paredez
- Centro de Investigación en Políticas, Población y Salud, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Leith León-Maldonado
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, México
| | - Carlos Magis-Rodríguez
- Facultad de Medicina, Departamento de Salud Pública, Universidad Nacional Autónoma de México, Ciudad de México, México
| | | | - Jorge Salmerón
- Centro de Investigación en Políticas, Población y Salud, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, México
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León-Maldonado L, Hernández-Ramírez RU, Torres-Ibarra L, Spiegelman D, Sheth SS, Lazcano E, Cadena-Fiscal JD, Salmerón J. Factors associated with receiving results and attending colposcopy in patients with positive HPV screens in Mexico City. Prev Med Rep 2023; 35:102347. [PMID: 37593354 PMCID: PMC10428024 DOI: 10.1016/j.pmedr.2023.102347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 06/23/2023] [Accepted: 07/23/2023] [Indexed: 08/19/2023] Open
Abstract
We identified patient and healthcare system factors related to receipt of screening results and attendance to colposcopy among patients with positive screening results in a cervical cancer screening program in Mexico City, Mexico. We analyzed data from 1,351 patients with high-risk human papillomavirus (HPV)-positive results from two screening demonstration studies conducted between 2017 and 2018. Factors associated with receipt of screening results and with adherence to a colposcopy appointment were identified using multivariable logistic regression. Participants had a median age of 40 years (IQR = 32-48), 60% had less than high school education, and 74% had a previous Pap screening in the last 5 years. Fifty-five percent of participants retrieved their screening results at the healthcare facility (HCF) without any reminder. Providing an email address for contact information, attending a HCF with family medicine, and receiving care from experienced nurses were associated with greater adherence to obtaining screening test results. Fifty-seven percent of participants attended their first scheduled colposcopy appointment. Providing a phone number improved adherence to colposcopy, whereas longer travel times between the HCF and the colposcopy clinic was associated with a decrease in colposcopy adherence. Having a Pap test in the last 5 years was positively associated with better compliance with both outcomes. Securing contact information may help to overcome barriers to future follow-up. Additional research is necessary on strategies for obtaining screening test results and scheduling appointments, which may help address barriers to access, such as limited staff availability, distance from the clinic, and travel costs.
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Affiliation(s)
- Leith León-Maldonado
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, Mexico
| | - Raúl U. Hernández-Ramírez
- Department of Biostatistics, Center for Methods in Implementation and Prevention Science (CMIPS), Yale School of Public Health (YSPH), New Haven, CT, USA
| | - Leticia Torres-Ibarra
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, Mexico
| | - Donna Spiegelman
- Department of Biostatistics, Center for Methods in Implementation and Prevention Science (CMIPS), Yale School of Public Health (YSPH), New Haven, CT, USA
| | - Sangini S. Sheth
- Department of Obstetrics, Gynecology, & Reproductive Sciences, Yale School of Medicine (YSM), New Haven, CT, USA
| | - Eduardo Lazcano
- Dirección General, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, Mexico
| | - José D. Cadena-Fiscal
- Jurisdicción Sanitaria Tlalpan, Servicios de Salud de la Ciudad de México, México City, Mexico
| | - Jorge Salmerón
- Centro de Investigación en Políticas, Población y Salud, Facultad de Medicina, Universidad Nacional Autónoma de México, México City, Mexico
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Carnalla M, Rojas-Martínez R, Barrientos-Gutiérrez T, Allen-Leigh B, León-Maldonado L, Gutiérrez-Xicoténcatl L, Portillo-Romero AJ, Nyitray AG, Salmerón J, Giuliano AR, Lazcano-Ponce E. Prevalence and development of a risk score for oral human papillomavirus infection in men who have sex with men in Mexico. J Oral Pathol Med 2023; 52:751-757. [PMID: 37525481 DOI: 10.1111/jop.13474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 05/23/2023] [Accepted: 07/19/2023] [Indexed: 08/02/2023]
Abstract
BACKGROUND Men who have sex with men (MSM) are at high risk for oral human papillomavirus (HPV infection). There are no specific screening guidelines to facilitate the identification of people at risk for oral HPV infection. We aimed to estimate the prevalence of oral high-risk HPV and create a risk score to identify MSM at higher risk for prevalent oral HPV. METHODS We collected baseline data from a clinical trial from a subsample of 500 MSM attending sexually transmitted disease treatment clinics; they provided an oral gargle sample for high-risk HPV detection. We calculated oral high-risk HPV prevalence and 95% confidence intervals (CIs), used a logistic regression model to identify factors associated with high-risk HPV infection, and created a risk score. RESULTS The prevalence of any oral high-risk HPV among MSM was 11.1% (95% CI: 8.6-14.2), with a higher prevalence observed among men living with HIV (14.8%). Factors independently associated with oral high-risk HPV were age ≥40 years (OR = 2.71, 95% CI: 1.28-5.73 compared to <40 years), being HIV-positive with CD4 count 200-499 (OR = 2.76, 95% CI: 1.34-5.65 compared to HIV-negative), and recent recreational use of vasodilators (poppers/sildenafil) (OR = 2.02, 95% CI: 1.02-2.97). The risk score had good discriminatory power (AUC = 0.70, 95% CI: 0.63-0.77). CONCLUSIONS MSM have specific predictors for prevalent oral high-risk HPV, and a risk score could be used by clinicians to target men with vaccine recommendations and counseling, and identify those who could benefit from primary interventions given the available resources, or for referral to dental services for follow-up when available.
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Affiliation(s)
- Martha Carnalla
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Mexico
| | - Rosalba Rojas-Martínez
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Mexico
| | | | - Betania Allen-Leigh
- Dirección de Salud Reproductiva, Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Mexico
| | - Leith León-Maldonado
- Centro de Investigación en Salud Poblacional, National Institute of Public Health, Cuernavaca, Mexico
| | - Lourdes Gutiérrez-Xicoténcatl
- Centro de Investigación Sobre Enfermedades Infecciosas (CISEI), Instituto Nacional de Salud Pública (INSP), Cuernavaca, Mexico
| | | | - Alan G Nyitray
- Center for AIDS Intervention Research, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Jorge Salmerón
- Centro de Investigación en Políticas, Población y Salud, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Anna R Giuliano
- Center for Immunization and Infection Research in Cancer, Moffitt Cancer Center, Tampa, Florida, USA
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Portillo-Romero AJ, Allen-Leigh B, Nyitray AG, Carnalla M, Salmerón J, León-Maldonado L, Yunes E, Rivera L, Magis-Rodríguez C, Vargas G, Giuliano AR, Esquivel-Ocampo EA, Lazcano-Ponce E. Sex Work and High-Risk Anal Human Papillomavirus Infection Among Transgender Women: The Condesa Study. Transgend Health 2022; 6:315-324. [PMID: 34993304 DOI: 10.1089/trgh.2020.0075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Purpose: The prevalence of high-risk human papillomavirus (hrHPV) infection among transgender women has been reported to be very high and sexually transmitted infection (STI) prevention strategies have focused on transgender women who engage in sex work. The purpose of our study was to describe hrHPV infection prevalence among a group of transgender women and to explore the differences according to sex work history (SW). Methods: The Condesa Study, an HPV vaccine, and screening study, recruited 207 transgender women without previous HPV vaccination, ages 18-60, from two clinics in Mexico City that provide HIV and transgender health care (May 2018-December 2019). At enrollment, they completed a questionnaire on sociodemographic and sexual behavior data. The hrHPV DNA genotyping was done on self-collected anal samples. Factors associated with hrHPV, stratified by presence or absence of SW, were assessed with multiple logistic regression. Results: A total of 43.5% of participants reported a history of SW. Anal hrHPV prevalence was 62.0% among participants with a history of SW and 52.0% among those without. Overall, 1 in 4 (26.6%) participants were living with HIV. Independent risk factors associated with hrHPV among transgender women with a history of SW were younger age, younger age at first anal intercourse (15-17 years), and greater number of sexual partners in the last 3 months. Among transgender women who had not done SW, greater number of sexual partners in the last 3 months and self-reported STIs were associated with hrHPV. Conclusions: Prevalence of anal infection with hrHPV was high among transgender women. Our results support that other sexual behaviors different from participating in SW contribute to the high prevalence of HPV and that there is an urgent need to include all transgender women in prevention programs for HPV and associated cancers, regardless of SW.
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Affiliation(s)
| | - Betania Allen-Leigh
- Reproductive Health Division, Center for Population Health Research, National Institute of Public Health, Cuernavaca, Mexico
| | - Alan G Nyitray
- Clinical Cancer Center, Center for AIDS Intervention Research, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Martha Carnalla
- Center for Population Health Research, National Institute of Public Health, Cuernavaca, Mexico
| | - Jorge Salmerón
- Center for Research in Policy, Population and Health, School of Medicine, National Autonomous University of Mexico, Mexico City, Mexico
| | - Leith León-Maldonado
- National Council of Science and Technology (CONACYT)-National Institute of Public Health, Cuernavaca, Mexico
| | - Elsa Yunes
- Center for Population Health Research, National Institute of Public Health, Cuernavaca, Mexico
| | - Leonor Rivera
- Center for Population Health Research, National Institute of Public Health, Cuernavaca, Mexico
| | | | - Galileo Vargas
- Center for the Prevention and Comprehensive Care of HIV/AIDS in Mexico City, Condesa Clinic, Mexico City, Mexico
| | - Anna R Giuliano
- Center for Infection in Cancer Research, Moffitt Cancer Center, Tampa, Florida, USA
| | - Eiberth A Esquivel-Ocampo
- Coloproctology Unit of General Hospital of Cuernavaca, "Dr. José G. Parres," Cuernavaca, Morelos, México
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Hernández-López R, Hermosillo L, León-Maldonado L, Velázquez-Cruz R, Torres-Ibarra L, Lazcano-Ponce E, Lörincz A, Wheeler CM, Bosch FX, Cuzick J, Rivera-Paredez B, Nedjai B, Salmerón J. Performance of an affordable urine self-sampling method for human papillomavirus detection in Mexican women. PLoS One 2021; 16:e0254946. [PMID: 34288949 PMCID: PMC8294492 DOI: 10.1371/journal.pone.0254946] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 07/06/2021] [Indexed: 12/13/2022] Open
Abstract
INTRODUCTION Urine self-sampling for human papillomavirus (HPV)-based cervical cancer screening is a non-invasive method that offers several logistical advantages and high acceptability, reducing barriers related to low screening coverage. This study developed and evaluated the performance of a low-cost urine self-sampling method for HPV-testing and explored the acceptability and feasibility of potential implementation of this alternative in routine screening. METHODS A series of sequential laboratory assays examined the impact of several pre-analytical conditions for obtaining DNA from urine and subsequent HPV detection. Initially, we assessed the effect of ethylaminediaminetetraacetic acid (EDTA) as a DNA preservative examining several variables including EDTA concentration, specimen storage temperature, time between urine collection and DNA extraction, and first-morning micturition versus convenience sample collection. We further evaluated the agreement of HPV-testing between urine and clinician-collected cervical samples among 95 women. Finally, we explored the costs of self-sampling supplies as well as the acceptability and feasibility of urine self-sampling among women and healthcare workers. RESULTS Our results revealed higher DNA concentrations were obtained when using a 40mM EDTA solution, storing specimens at 25°C and extracting DNA within 72 hrs. of urine collection, regardless of using first-morning micturition or a convenience sampling. We observed good agreement (Kappa = 0.72) between urine and clinician-collected cervical samples for HPV detection. Furthermore, urine self-sampling was an affordable method (USD 1.10), well accepted among cervical cancer screening users, healthcare workers, and decision-makers. CONCLUSION These results suggest urine self-sampling is feasible and appropriate alternative for HPV-testing in HPV-based screening programs in lower-resource contexts.
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Affiliation(s)
- Rubí Hernández-López
- Oficina de Análisis del Plan de Salud, Subgerencia Técnica del Plan de Salud, Gerencia de Administración del Plan de Salud, Banco de México, Mexico City, Mexico
| | - Luis Hermosillo
- Facultad de Medicina, Centro de Investigación en Políticas, Población y Salud, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Leith León-Maldonado
- Consejo Nacional de Ciencia y Tecnología-Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, Mexico
| | - Rafael Velázquez-Cruz
- Laboratorio de Genómica del Metabolismo Óseo, Instituto Nacional de Medicina Genómica (INMEGEN), Mexico City, Mexico
| | - Leticia Torres-Ibarra
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, Mexico
| | - Eduardo Lazcano-Ponce
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, Mexico
| | - Attila Lörincz
- Centre for Cancer Prevention, Wolfson Institute of Preventive Medicine, Queen Mary University of London, London, United Kingdom
| | - Cosette M. Wheeler
- Department of Pathology and Obstetrics & Gynecology, University of New Mexico Comprehensive Cancer Center, Albuquerque, New Mexico, United States of America
| | - F. Xavier Bosch
- Unit of Infections and Cancer—Information and Interventions, Cancer Epidemiology Research Programme, Catalan Institute of Oncology (ICO)—IDIBELL, l’Hospitalet de Llobregat, Open University of Catalonia, Barcelona, Spain
| | - Jack Cuzick
- Centre for Cancer Prevention, Wolfson Institute of Preventive Medicine, Queen Mary University of London, London, United Kingdom
| | - Berenice Rivera-Paredez
- Facultad de Medicina, Centro de Investigación en Políticas, Población y Salud, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Belinda Nedjai
- Centre for Cancer Prevention, Wolfson Institute of Preventive Medicine, Queen Mary University of London, London, United Kingdom
| | - Jorge Salmerón
- Facultad de Medicina, Centro de Investigación en Políticas, Población y Salud, Universidad Nacional Autónoma de México, Mexico City, Mexico
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Torres-Ibarra L, Lorincz AT, Wheeler CM, Cuzick J, Hernández-López R, Spiegelman D, León-Maldonado L, Rivera-Paredez B, Méndez-Hernández P, Lazcano-Ponce E, Salmerón J. Adjunctive testing by cytology, p16/Ki-67 dual-stained cytology or HPV16/18 E6 oncoprotein for the management of HPV16/18 screen-positive women. Int J Cancer 2021; 148:2264-2273. [PMID: 33252834 DOI: 10.1002/ijc.33414] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 10/23/2020] [Accepted: 11/13/2020] [Indexed: 12/30/2022]
Abstract
High-risk human papillomavirus type 16/18 (HPV16/18) genotyping is unable to accurately discriminate nonprogressive infections from those that will progress to cervical cancer. Our study aimed to assesses if additional testing either with liquid-based cytology (LBC) or the putative progression markers p16/Ki-67 and HPV16/18 E6 oncoprotein (E6) can improve the efficiency of HPV16/18 genotyping for triaging high-risk HPV (hrHPV)-positive women through better cancer risk stratification. Women attending colposcopy after positive HPV16/18 genotyping results within the Forwarding Research for Improved Detection and Access for Cervical Cancer Screening and Triage (FRIDA) hrHPV-based screening study in Tlaxcala, Mexico, underwent further testing with LBC, p16/Ki-67 dual-stained (DS) cytology and E6. We calculated measures of test performance for detecting histologically confirmed cervical intraepithelial neoplasia grade 2 or higher (CIN2+) and grade 3 or higher (CIN3+). A number of 475 (64.3%) of 739 HPV16/18-positive women had complete results for all tests. Triage positivity rates were 14.1%, 18.5% and 24.4%, for LBC, E6 and DS, respectively. Compared with LBC, DS had higher sensitivity (24.4% vs 60.0%) although lower specificity (87.0% vs 79.3%) for CIN3+ (P < .001), whereas E6 had a sensitivity of 37.8% and a specificity of 83.5%. No invasive cancer was missed by DS or E6, but 75% were in normal cytology. DS test was associated with nearly 75% reduction of colposcopy referrals compared with the direct referral of all HPV16/18-positive women, giving the least number of colposcopies (n = 4.3) per CIN3+ detected. We show that adjunctive testing of HPV16/18-positive women with DS may greatly reduce unnecessary colposcopy referrals within HPV-based screening employing HPV16/18 genotyping while retaining acceptable sensitivity for CIN2+ and CIN3+.
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Affiliation(s)
- Leticia Torres-Ibarra
- Center for Population Health Research, National Institute of Public Health, Cuernavaca, Mexico
| | - Attila T Lorincz
- Wolfson Institute of Preventive Medicine Centre for Cancer Prevention, Queen Mary University, London, UK
| | - Cosette M Wheeler
- New Mexico Comprehensive Cancer Center, Center for HPV Prevention, University of New Mexico, Albuquerque, New Mexico, USA
| | - Jack Cuzick
- Wolfson Institute of Preventive Medicine Centre for Cancer Prevention, Queen Mary University, London, UK
| | - Rubí Hernández-López
- Health Plan Analysis Office, Technical Deputy Management of Health Plan, Health Plan Administration Management, General Administration, Bank of Mexico, Mexico ty, Mexico
| | - Donna Spiegelman
- Center for Methods in Implementation and Prevention Science, Yale School of Public Health, New Haven, Connecticut, USA
| | - Leith León-Maldonado
- CONACYT-Center for Population Health Research, National Institute of Public Health, Cuernavaca, Mexico
| | - Berenice Rivera-Paredez
- Faculty of Medine, Research Center on Policies, Population and Health, National Autonomous University of Mexico, Mexico City, Mexico
| | - Pablo Méndez-Hernández
- Departamento de Calidad y Educación en Salud, Secretaria de Salud Tlaxcala, Santa Ana Chiautempan, Tlaxcala, Mexico
- Facultad de Ciencias de la Salud, Universidad Autónoma de Tlaxcala, Zacatelco, Tlaxcala, Mexico
| | - Eduardo Lazcano-Ponce
- School of Public Health of Mexico, National Institute of Public Health, Cuernavaca, Mexico
| | - Jorge Salmerón
- Faculty of Medine, Research Center on Policies, Population and Health, National Autonomous University of Mexico, Mexico City, Mexico
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Barrera-Núñez D, Torres-Ibarra L, León-Maldonado L, Stern D, Barrientos-Gutiérrez T, López-Carrillo L. Revisión rápida de la transmisión del SARS-CoV-2 por contacto con objetos y superficies. Salud Publica Mex 2020; 63:126-135. [PMID: 33984205 DOI: 10.21149/11877] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 09/29/2020] [Indexed: 11/06/2022] Open
Abstract
Objetivo. Identificar evidencia científica sobre la transmisión indirecta del SARS-CoV-2 en espacios extrahospitalarios y medidas poblacionales para su prevención. Material y métodos. Una revisión rápida de lo publicado en PubMed y MedRxiv entre 01/12/2019 y 24/04/2020 sobre los temas 1) la contaminación y viabilidad del SARS-CoV-2 en distintas superficies inanimadas; 2) la efectividad desinfectante ante SARS-CoV-2 de productos accesibles a nivel domiciliario; 3) los casos y brotes de contagio de SARS-CoV-2 por medio de superficies. Resultados. Una alta proporción de los objetos de personas infectadas con SARS-CoV-2 (inodoro, ollas y tabletas electrónicas) se encuentran contaminados. Este virus permanece viable desde horas hasta días en papel, cartón, tela, vidrio, madera, plástico, acero y cubrebocas. El etanol, 2-propanol, cloro y jabón son efectivos para desactivarlo. Existe poca evidencia sobre casos y brotes por contagio indirecto. Conclusiones. Se requieren estudios que determinen la dosis mínima infectante por autoinoculación. Apelando al principio precautorio, se incluyeron recomendaciones para reducir el riesgo de contagio indirecto.
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Affiliation(s)
- David Barrera-Núñez
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública. Cuernavaca, Morelos, México.
| | - Leticia Torres-Ibarra
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública. Cuernavaca, Morelos, México.
| | - Leith León-Maldonado
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública. Cuernavaca, Morelos, México.
| | - Dalia Stern
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública. Cuernavaca, Morelos, México.
| | | | - Lizbeth López-Carrillo
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública. Cuernavaca, Morelos, México.
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10
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Ramírez-Palacios P, Chen A, Flores YN, Crespi CM, Lazcano-Ponce E, Alvarez-Escobedo D, Torres-Ibarra L, Rivera-Paredez B, León-Maldonado L, Hernández-López R, Mendiola-Pastrana IR, Méndez-Hernández P, Cuzick J, Carmona E, Figueroa H, Montiel-Cordero F, Meneses-León J, Rao J, Salmerón J. Benefit of double-reading cytology smears as a triage strategy among high-risk human papillomavirus-positive women in Mexico. Cancer Cytopathol 2020; 128:715-724. [PMID: 32520446 DOI: 10.1002/cncy.22303] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 05/01/2020] [Accepted: 05/11/2020] [Indexed: 01/08/2023]
Abstract
BACKGROUND The goal of this study was to determine whether the detection of histologically confirmed cases of cervical high-grade squamous intraepithelial lesions or worse (HSIL+) can be increased by having each liquid-based cytology (LBC) slide read by 2 cytotechnologists as part of routine screening. METHODS Over 36,212 women aged 30 to 64 years participated in the Forwarding Research for Improved Detection and Access for Cervical Cancer Screening and Triage (FRIDA) Study in Mexico between 2013 and 2016. For each participant, 2 cervical samples were collected at the same clinic visit, one to test for high-risk human papillomavirus (hrHPV) and the other for LBC, which was used to triage those with a hrHPV positive result. LBC slides were evaluated by 7 cytotechnologists, with each slide read independently by 2 blinded cytotechnologists. All women with atypical cells of undetermined significance or a worse result were referred to colposcopy for further evaluation and diagnosis. Three pathologists evaluated the biopsy specimens to confirm the final HSIL+ diagnosis. The HSIL+ detection rates for the single versus double reading were estimated and compared. RESULTS A total of 3,914 women with a positive hrHPV result were triaged with LBC. The first and second cytology readings resulted in 43 HSIL+ cases detected; the double-reading strategy detected 9 additional HSIL+ cases, resulting in a total of 52 HSIL+ cases. The HSIL+ detection rate increased from 10.99/1000 with a single reading to 13.29/1000 with the double-reading strategy (P = .004). CONCLUSION A 20.9% increase in HSIL+ cases detected was achieved with a double reading of the LBC slides in this sample of hrHPV-positive women.
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Affiliation(s)
- Paula Ramírez-Palacios
- Unidad de Investigación Epidemiológica y en Servicios de Salud, Delegación Morelos, Instituto Mexicano del Seguro Social, Cuernavaca, Mexico
| | - Aiyu Chen
- Department of Biostatistics, Fielding School of Public Health, University of California, Los Angeles, California
| | - Yvonne N Flores
- Unidad de Investigación Epidemiológica y en Servicios de Salud, Delegación Morelos, Instituto Mexicano del Seguro Social, Cuernavaca, Mexico
- Department of Health Policy and Management and Kaiser Permanente Center for Health Equity, Fielding School of Public Health, University of California, Los Angeles, California
- UCLA Cancer Prevention and Control Research Center, Fielding School of Public Health and Jonsson Comprehensive Cancer Center, University of California, Los Angeles, California
| | - Catherine M Crespi
- Department of Biostatistics, Fielding School of Public Health, University of California, Los Angeles, California
- UCLA Cancer Prevention and Control Research Center, Fielding School of Public Health and Jonsson Comprehensive Cancer Center, University of California, Los Angeles, California
| | - Eduardo Lazcano-Ponce
- Centro de Investigación en Salud Poblacional. Instituto Nacional de Salud Pública, Cuernavaca, Mexico
| | - Daniel Alvarez-Escobedo
- Unidad de Medicina Familiar, Hospital General Regional No. 1, Instituto Mexicano del Seguro Social, Cuernavaca, Mexico
| | - Leticia Torres-Ibarra
- Centro de Investigación en Salud Poblacional. Instituto Nacional de Salud Pública, Cuernavaca, Mexico
| | - Berenice Rivera-Paredez
- Centro de Investigación en Salud Poblacional. Instituto Nacional de Salud Pública, Cuernavaca, Mexico
- Centro de Investigación en Políticas, Población y Salud, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | | | - Rubí Hernández-López
- Centro de Investigación en Salud Poblacional. Instituto Nacional de Salud Pública, Cuernavaca, Mexico
- Centro de Investigación en Políticas, Población y Salud, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Indira R Mendiola-Pastrana
- Centro de Investigación en Salud Poblacional. Instituto Nacional de Salud Pública, Cuernavaca, Mexico
- Centro de Investigación en Políticas, Población y Salud, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Pablo Méndez-Hernández
- Departamento de Calidad y Educación en Salud, Secretaria de Salud Tlaxcala, Santa Ana Chiautempan, Mexico
- Facultad de Ciencias de la Salud, Universidad Autónoma de Tlaxcala, Zacatelco, Mexico
| | - Jack Cuzick
- Wolfson Institute of Preventive Medicine, Centre for Cancer Prevention, Queen Mary University of London, London, United Kingdom
| | | | - Héctor Figueroa
- Laboratorio de Citología, Laboratorio Estatal de Salud Pública, Tlaxcala, México
| | | | - Joacim Meneses-León
- Centro de Investigación en Salud Poblacional. Instituto Nacional de Salud Pública, Cuernavaca, Mexico
- Centro de Investigación en Políticas, Población y Salud, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Jianyu Rao
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, California
| | - Jorge Salmerón
- Centro de Investigación en Salud Poblacional. Instituto Nacional de Salud Pública, Cuernavaca, Mexico
- Centro de Investigación en Políticas, Población y Salud, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
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11
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Meneses-León J, León-Maldonado L, Macías N, Torres-Ibarra L, Hernández-López R, Rivera-Paredez B, Flores M, Flores YN, Barrientos-Gutiérrez T, Quezada-Sánchez AD, Velázquez-Cruz R, Salmerón J. Sugar-sweetened beverage consumption and risk of hyperuricemia: a longitudinal analysis of the Health Workers Cohort Study participants in Mexico. Am J Clin Nutr 2020; 112:652-660. [PMID: 32644154 PMCID: PMC7458765 DOI: 10.1093/ajcn/nqaa160] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Accepted: 05/29/2020] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND The elevated consumption of sugar-sweetened beverages (SSBs) in Mexico is an important public health concern. However, the association between SSB consumption and hyperuricemia has been scarcely studied and not well documented. OBJECTIVES To prospectively evaluate the association between SSB consumption and risk of hyperuricemia in Mexican adults. METHODS A longitudinal analysis was conducted using data from the Health Workers Cohort Study. Participants were followed from 2004 to 2018, with measurements every 6 y. The analysis sample consisted of 1300 adults, aged 18 to 85 y. SSB consumption during the previous year was evaluated through a semiquantitative FFQ. Hyperuricemia was defined as a concentration of uric acid ≥7.0 mg/dL in men and ≥5.7 mg/dL in women. We evaluated the association of interest using 2 methodologies: fixed-effects logistic regression and generalized estimating equations (GEEs). Potential confounders were included in both approaches. RESULTS At baseline, median intake of SSBs was 472.1 mL/wk (IQR: 198.8-1416.4 mL/wk), and 233 participants had hyperuricemia. Uric acid was higher in participants with an SSB intake ≥7 servings/wk, compared with those with an intake <1 serving/wk (P < 0.001). Participants who changed from the lowest to the highest category of servings consumption experienced 2.6 increased odds of hyperuricemia (95% CI: 1.27, 5.26). Results from the GEE model indicated the odds of hyperuricemia increased by 44% (OR=1.44; 95% CI: 1.13, 1.84) in the 2-6 servings/wk group, and by 89% (OR=1.89; 95% CI: 1.39, 2.57) in the ≥7 servings/wk categories, compared with the <1 serving/wk category. Diet soft drinks were not associated with hyperuricemia. CONCLUSIONS Our results suggest that the consumption of SSBs is associated with an increased risk of hyperuricemia in Mexican adults, but diet soft drink consumption is not, which supports the need to strengthen existing recommendations to reduce the intake of SSBs.The Health Workers Cohort Study (HWCS) has been approved by the Institutional Review Board of the Mexican Social Security Institute (12CEI 09 006 14), and the National Institute of Public Health of Mexico (13CEI 17 007 36).
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Affiliation(s)
- Joacim Meneses-León
- Research Center in Policy, Population, and Health, School of Medicine, National Autonomous University of Mexico, Mexico City, Mexico
| | - Leith León-Maldonado
- CONACYT, Center for Population Health Research, National Institute for Public Health, Cuernavaca, Morelos, Mexico
| | - Nayeli Macías
- Center for Nutrition and Health Research, National Institute for Public Health, Cuernavaca, Morelos, Mexico
| | - Leticia Torres-Ibarra
- Research Center in Policy, Population, and Health, School of Medicine, National Autonomous University of Mexico, Mexico City, Mexico,Center for Population Health Research, National Institute for Public Health, Cuernavaca, Morelos, Mexico
| | - Rubí Hernández-López
- Research Center in Policy, Population, and Health, School of Medicine, National Autonomous University of Mexico, Mexico City, Mexico
| | - Berenice Rivera-Paredez
- Research Center in Policy, Population, and Health, School of Medicine, National Autonomous University of Mexico, Mexico City, Mexico
| | - Mario Flores
- Center for Nutrition and Health Research, National Institute for Public Health, Cuernavaca, Morelos, Mexico
| | - Yvonne N Flores
- Unidad de Investigación Epidemiológica y en Servicios de Salud, Delegación Morelos, Instituto Mexicano del Seguro Social, Cuernavaca, Morelos, Mexico,UCLA Department of Health Policy and Management, Center for Cancer Prevention and Control Research, Fielding School of Public Health and Jonsson Comprehensive Cancer Center, Los Angeles, CA, USA
| | | | | | - Rafael Velázquez-Cruz
- Genomics of Bone Metabolism Laboratory, National Institute of Genomic Medicine, Mexico City, Mexico
| | - Jorge Salmerón
- Research Center in Policy, Population, and Health, School of Medicine, National Autonomous University of Mexico, Mexico City, Mexico
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12
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Rivera-Paredez B, Torres-Ibarra L, González-Morales R, Barrientos-Gutiérrez T, Hernández-López R, Ramírez P, León-Maldonado L, Velázquez-Cruz R, Denova-Gutiérrez E, Salmerón J. Cumulative soft drink consumption is associated with insulin resistance in Mexican adults. Am J Clin Nutr 2020; 112:661-668. [PMID: 32597932 PMCID: PMC7458769 DOI: 10.1093/ajcn/nqaa169] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 06/03/2020] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Insulin resistance (IR) is an important risk factor for type 2 diabetes (T2D) and other cardiometabolic diseases. Recent studies suggest that soft drink consumption could increase IR. However, inconsistent findings have been observed. OBJECTIVE The aim was to estimate the association between the cumulative consumption of soft drinks and IR by means of the HOMA-IR in Mexican adults. METHODS We analyzed the association between cumulative consumption of soft drinks and HOMA-IR change after 7 y of follow-up in participants (n = 1073) of the Health Workers Cohort Study. Soft drink consumption was estimated by food-frequency questionnaires. Insulin was measured by chemiluminescence, and fasting glucose was measured with the enzymatic colorimetric method. HOMA-IR was computed as fasting insulin (mIU/L) × fasting glucose (mmol/L)/22.5. To assess the relation between cumulative soft drink consumption and HOMA-IR change, we performed robust linear regression models. Additionally, we used fixed-effects models to estimate the association between changes in soft drink consumption and change in HOMA-IR. RESULTS At baseline, the average age was 44 y. Mean cumulative soft drink consumption was 0.42 servings/d. Median HOMA-IR increased from 1.5 at baseline to 2.0 at follow-up. Soft drink consumption was positively associated with HOMA-IR change. In the multiple linear regression analysis, for each increase in the consumption of 2 (355 mL) soft drinks/d, the average change between baseline and follow-up HOMA-IR showed an increase of 1.11 units (95% CI: 0.74, 1.48). CONCLUSIONS Our data support the hypothesis that, in Mexican adults, a higher soft drink consumption is associated with an increase in HOMA-IR, despite known risk factors. These findings support the need for reinforcing policies to reduce soft drink consumption in our population.
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Affiliation(s)
- Berenice Rivera-Paredez
- Center for Research in Policies, Population and Health, Faculty of Medicine, National Autonomous University of Mexico, Mexico City, Mexico
| | - Leticia Torres-Ibarra
- Center for Population Health Research, National Institute of Public Health, Cuernavaca, Mexico
| | - Romina González-Morales
- Center for Population Health Research, National Institute of Public Health, Cuernavaca, Mexico
| | | | - Rubí Hernández-López
- Subgerencia Técnica del Plan de Salud, Gerencia de Administración del Plan de Salud, Dirección General de Administración, Banco de México, Mexico City, Mexico
| | - Paula Ramírez
- Epidemiological Research and Health Services Unit, Mexican Institute of Social Security, Cuernavaca, Mexico
| | - Leith León-Maldonado
- CONACYT–Center for Population Health Research, National Institute of Public Health, Cuernavaca, Mexico
| | - Rafael Velázquez-Cruz
- Genomics of Bone Metabolism Laboratory, National Institute of Genomic Medicine (INMEGEN), Mexico City, Mexico
| | | | - Jorge Salmerón
- Center for Research in Policies, Population and Health, Faculty of Medicine, National Autonomous University of Mexico, Mexico City, Mexico
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13
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Torres-Ibarra L, Cuzick J, Lorincz AT, Spiegelman D, Lazcano-Ponce E, Franco EL, Moscicki AB, Mahmud SM, Wheeler CM, Rivera-Paredez B, Hernández-López R, León-Maldonado L, Salmerón J. Comparison of HPV-16 and HPV-18 Genotyping and Cytological Testing as Triage Testing Within Human Papillomavirus-Based Screening in Mexico. JAMA Netw Open 2019; 2:e1915781. [PMID: 31747033 PMCID: PMC6902808 DOI: 10.1001/jamanetworkopen.2019.15781] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
IMPORTANCE Triage tests enhance the efficiency cervical cancer screening based on human papillomavirus (HPV), but the best approach for maximizing programmatic effectiveness is still uncertain, particularly in a real-world scenario. OBJECTIVE To compare the clinical performance of 6 triage strategies based on liquid-based cytology (LBC) and HPV-16 and HPV-18 genotyping individually or in combination as sequential triage tests to detect cervical intraepithelial neoplasia (CIN) grade 2 or higher among women with high-risk HPV. DESIGN, SETTING, AND PARTICIPANTS This diagnostic study of routine cervical cancer screening was conducted at 100 primary health centers in Tlaxcala, Mexico. Women aged 30 to 64 years were recruited from August 1, 2013, to February 24, 2016, as part of the Forwarding Research for Improved Detection and Access for Cervical Cancer Screening and Triage study. Six triage scenarios for referral to colposcopy were examined: (1) LBC testing that found atypical squamous cells of undetermined significance (ASC-US) or worse, (2) positive results in HPV-16 genotyping, (3) positive results in HPV-18 genotyping, (4) positive results in HPV-16/HPV-18 genotyping, (5) positive results in HPV-16 genotyping or, if genotyping results were negative, reflex LBC testing that found ASC-US or worse, and (6) positive results in HPV-16/HPV-18 genotyping or, if genotyping results were negative, reflex LBC testing that found ASC-US or worse. Data were analyzed from October 2017 to August 2018. EXPOSURES Liquid-based cytological testing with simultaneous HPV-16 and HPV-18 genotyping. Women whose HPV genotyping results were positive for HPV-16 or HPV-18 or whose LBC results found ASC-US or worse and a random set of negative and normal results were referred to colposcopy with histologic analysis used for disease confirmation. MAIN OUTCOMES AND MEASURES Clinical performance of each test strategy for detection of CIN grade 2 or higher. Secondary outcomes included resource utilization of each triage scenario, measured by the number of tests performed, the referral rate for colposcopy, and the numbers of colposcopies per CIN grade 2 or higher detected. RESULTS A total of 36 212 women (median [interquartile range] age, 40 [35-47] years) were screened, and 4051 women (11.2%) had high-risk HPV. Of these women, 1109 (24.6%) were found to have HPV-16, HPV-18, or ASC-US or worse. Further histologic testing detected CIN grade 2 or higher in 110 of 788 women (14.0%) who underwent follow-up colposcopy. Sensitivity and specificity for 3 main triage strategies were 42.9% and 74.0% for LBC; 58.3% and 54.4% for HPV-16/HPV-18 genotyping; and 86.6% and 34.0% for HPV-16/HPV-18 genotyping with reflex LBC. The referral rate to colposcopy was 29% for HPV-16/HPV-18 with reflex LBC, which was 2-fold higher than the referral rate of 12% for LBC. CONCLUSIONS AND RELEVANCE Triage of women with high-risk HPV with HPV-16/HPV-18 genotyping with reflex LBC was significantly associated with improvement in detection of CIN grade 2 or higher compared with LBC alone. The benefit of disease prevented may outweigh the cost of increasing requirements for colposcopy services in settings with limited adherence to follow-up after a positive screening result.
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Affiliation(s)
- Leticia Torres-Ibarra
- Center for Population Health Research, National Institute of Public Health, Cuernavaca, Mexico
| | - Jack Cuzick
- Wolfson Institute of Preventive Medicine Centre for Cancer Prevention, Queen Mary University, London, United Kingdom
| | - Attila T. Lorincz
- Wolfson Institute of Preventive Medicine Centre for Cancer Prevention, Queen Mary University, London, United Kingdom
| | - Donna Spiegelman
- Center for Methods in Implementation and Prevention Science, Yale School of Public Health, New Haven, Connecticut
| | - Eduardo Lazcano-Ponce
- Center for Population Health Research, National Institute of Public Health, Cuernavaca, Mexico
| | - Eduardo L. Franco
- Division of Cancer Epidemiology, McGill University, Montreal, Quebec, Canada
| | | | - Salaheddin M. Mahmud
- Vaccine and Drug Evaluation Centre, Department of Community Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Cosette M. Wheeler
- Center for HPV Prevention, New Mexico Comprehensive Cancer Center, University of New Mexico, Albuquerque
| | - Berenice Rivera-Paredez
- Research Center on Policies, Population, and Health, Faculty of Medicine, National Autonomous University of Mexico, Mexico City, Mexico
| | - Rubí Hernández-López
- Center for Population Health Research, National Institute of Public Health, Cuernavaca, Mexico
- Research Center on Policies, Population, and Health, Faculty of Medicine, National Autonomous University of Mexico, Mexico City, Mexico
| | - Leith León-Maldonado
- Center for Population Health Research, Consejo Nacional de Ciencia y Tecnología, National Institute of Public Health, Cuernavaca, Mexico
| | - Jorge Salmerón
- Research Center on Policies, Population, and Health, Faculty of Medicine, National Autonomous University of Mexico, Mexico City, Mexico
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Allen-Leigh B, Rivera-Rivera L, Yunes-Díaz E, Portillo-Romero AJ, Brown B, León-Maldonado L, Vargas-Guadarrama G, Salmerón J, Lazcano-Ponce EC. Uptake of the HPV vaccine among people with and without HIV, cisgender and transgender women and men who have sex with men and with women at two sexual health clinics in Mexico City. Hum Vaccin Immunother 2019; 16:981-990. [PMID: 31657665 DOI: 10.1080/21645515.2019.1675456] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Our aim was to better understand Human Papillomavirus (HPV) vaccine acceptance among Mexican adults including people with and without HIV, cisgender men who have sex with men (MSM) or with women (MSW), cisgender and transgender women. A computer-assisted, self-administered questionnaire was completed by healthcare users and participants recruited through community organizations, and the first dose of the quadrivalent HPV vaccine was offered at no cost at a large sexual health clinic in Mexico City, from May to December 2018. Socio-demographic characteristics and factors associated with HPV vaccine acceptance were analyzed using logistic regression.The sample of 1915 participants included 1341 cisgender men (70.9%, 1247 MSM and 94 MSW), 396 (20.7%) cisgender women and 178 (9.3%) transwomen; 615 people (32.1%) were HIV positive. Uptake of the HPV vaccine was higher in men and transwomen (91.5% and 87%, respectively) than among cisgender women (81.8%; p < .001). Cisgender women (OR 0.43, 95%CI 0.30-0.61, p < .05) were less likely to accept HPV vaccination than men. Married/partnered people were less likely to accept HPV vaccination compared to those who were single (OR 0.70, 95%CI 0.51-0.97). People living with HIV were not significantly more likely to accept HPV vaccination (OR 1.7; 95%CI 0.86-1.61).HPV vaccine acceptance was high among adult Mexican study participants; it may be higher than among other Mexican adults given most of these individuals are engaged in care. Modifications will be needed in national and international recommendations on HPV vaccination in adults if healthcare personnel are to recommend the vaccine to the population groups studied.
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Affiliation(s)
- Betania Allen-Leigh
- Reproductive Health Division, Center for Population Health Research, National Institute of Public Health, Cuernavaca, Morelos, Mexico
| | - Leonor Rivera-Rivera
- Reproductive Health Division, Center for Population Health Research, National Institute of Public Health, Cuernavaca, Morelos, Mexico
| | - Elsa Yunes-Díaz
- Center for Population Health Research, National Institute of Public Health, Cuernavaca, Morelos, Mexico
| | | | - Brandon Brown
- School of Medicine, University of California at Riverside, Riverside, California, USA
| | - Leith León-Maldonado
- Cátedra CONACYT-Center for Population Health Research, National Institute of Public Health, Mexico City, Mexico.,Academic Unit in Epidemiological Research. Center for Research in Policies, Population, and Health, School of Medicine, National Autonomous University of Mexico, Mexico City, Mexico
| | - Galileo Vargas-Guadarrama
- Center for the Prevention and Comprehensive Care of HIV/AIDS in Mexico City, Condesa Clinic, Mexico City, Mexico
| | - Jorge Salmerón
- Academic Unit in Epidemiological Research. Center for Research in Policies, Population, and Health, School of Medicine, National Autonomous University of Mexico, Mexico City, Mexico
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Hernández-López R, Lorincz AT, Torres-Ibarra L, Reuter C, Scibior-Bentkowska D, Warman R, Nedjai B, Mendiola-Pastrana I, León-Maldonado L, Rivera-Paredez B, Ramírez-Palacios P, Lazcano-Ponce E, Cuzick J, Salmerón J. Methylation estimates the risk of precancer in HPV-infected women with discrepant results between cytology and HPV16/18 genotyping. Clin Epigenetics 2019; 11:140. [PMID: 31606044 PMCID: PMC6790057 DOI: 10.1186/s13148-019-0743-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 09/12/2019] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Vigilant management of women with high-risk human papillomavirus (hrHPV) is necessary in cancer screening programs. To this end, we evaluated the performance of S5 (targeting DNA methylation in HPV16, HPV18, HPV31, HPV33, and human gene EPB41L3) to predict cervical intraepithelial neoplasia grade 2 or higher (CIN2+) in a sample of hrHPV-infected women referred to colposcopy in the FRIDA Study, a large screening trial in Mexico. A nested case-control sample with women referred to colposcopy either by atypical squamous cells of undetermined significance or higher (ASCUS+) in cytology and/or positive for HPV types 16 or 18 was tested by S5. Seventy-nine cases of CIN2+ were age-matched to 237 controls without a diagnosis of CIN2+ ( RESULTS The S5 classifier separated women with CIN2+ from CONCLUSIONS S5 testing on hrHPV-positive women significantly increased diagnostic information compared to triage by HPV16/18 plus cytology and appears to have clinical utility as an additional test to substantially lessen burdens on colposcopy. TRIAL REGISTRATION The FRIDA Study is registered in ClinicalTrials.gov , number NCT02510027.
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Affiliation(s)
- Rubí Hernández-López
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Morelos México
- Centro de Investigación en Políticas, Población y Salud, Universidad Nacional Autónoma, Ciudad de México, México
| | - Attila T. Lorincz
- Wolfson Institute of Preventive Medicine, Centre for Cancer Prevention, Queen Mary University of London, London, UK
| | - Leticia Torres-Ibarra
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Morelos México
| | - Caroline Reuter
- Wolfson Institute of Preventive Medicine, Centre for Cancer Prevention, Queen Mary University of London, London, UK
| | - Dorota Scibior-Bentkowska
- Wolfson Institute of Preventive Medicine, Centre for Cancer Prevention, Queen Mary University of London, London, UK
| | - Rhian Warman
- Wolfson Institute of Preventive Medicine, Centre for Cancer Prevention, Queen Mary University of London, London, UK
| | - Belinda Nedjai
- Wolfson Institute of Preventive Medicine, Centre for Cancer Prevention, Queen Mary University of London, London, UK
| | - Indira Mendiola-Pastrana
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Morelos México
| | - Leith León-Maldonado
- Centro de Investigación en Políticas, Población y Salud, Universidad Nacional Autónoma, Ciudad de México, México
- Cátedra-CONACYT, Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Morelos México
| | - Berenice Rivera-Paredez
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Morelos México
- Centro de Investigación en Políticas, Población y Salud, Universidad Nacional Autónoma, Ciudad de México, México
| | - Paula Ramírez-Palacios
- Unidad de Investigación Epidemiológica y en Servicios de Salud, Delegación Morelos, Instituto Mexicano del Seguro Social, Cuernavaca, Morelos México
| | - Eduardo Lazcano-Ponce
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Morelos México
| | - Jack Cuzick
- Wolfson Institute of Preventive Medicine, Centre for Cancer Prevention, Queen Mary University of London, London, UK
| | - Jorge Salmerón
- Centro de Investigación en Políticas, Población y Salud, Universidad Nacional Autónoma, Ciudad de México, México
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16
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Portillo-Romero AJ, León-Maldonado L, Allen-Leigh B, Brown B, Magis C, García-Fuentes NB, Salmerón J, Hurtado E, Torres-Ibarra L, Rivera-Paredez B, Hernández-López R, Yunes-Díaz E, Lazcano-Ponce E. HPV vaccine acceptance is high among adults in Mexico, particularly in people living with HIV. Salud Publica Mex 2019; 60:658-665. [PMID: 30699271 DOI: 10.21149/10182] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Accepted: 11/23/2018] [Indexed: 01/16/2023] Open
Abstract
OBJECTIVE To measure HPV vaccine acceptance in diverse Mexican adult popula-tions, taking into account HIV status. MATERIALS AND METHODS A total of 1 329 men and women, with and without HIV, participated in one of three intervention studies, offering HPV vaccination, carried out in the states of Morelos, Tlaxcala and Mexico City; either the bivalent (Morelos n=103, Tlaxcala n=127) or quadrivalent HPV-vaccine (Mexico City n=1 099) was offered. RESULTS HPV vaccine was accepted by 80.3% of participants; acceptance was higher in people living with HIV than those without (84.4 vs. 78%, p=0.004). Women had greater HPV infection knowledge (p<0.0001) than men and slightly higher (p=0.4) vaccine acceptance. The main reason for vaccine non-acceptance among HIV-positive participants was their doctor recommended they not get vaccinated. CONCLUSIONS Acceptance of HPV-vaccine was high in men and women regardless of HIV status. Even higher rates of acceptability may be achieved by educating healthcare providers to recommend HPV vaccine to their patients.
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Affiliation(s)
| | - Leith León-Maldonado
- Conacyt- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública. Mexico City, Mexico
| | - Betania Allen-Leigh
- Dirección de Salud Reproductiva, Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública. Mexico City, Mexico
| | - Brandon Brown
- School of Medicine, University of California. Riverside, California, United States of America
| | - Carlos Magis
- Atención Integral, Centro Nacional para la Prevención y Control del VIH/SIDA (Censida). Mexico City, Mexico
| | - Norma Beatriz García-Fuentes
- Coordinación Estatal del Programa de VIH, SIDA e ITS, Servicios de Salud de Morelos. Cuernavaca, Morelos, Mexico
| | - Jorge Salmerón
- Centro de Investigación de Políticas de Población y Salud, Facultad de Medicina, Universidad Nacional Autónoma de México. Mexico City, Mexico.,Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública. Mexico City, Mexico
| | - Erika Hurtado
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública. Mexico City, Mexico
| | - Leticia Torres-Ibarra
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública. Mexico City, Mexico
| | - Berenice Rivera-Paredez
- Centro de Investigación de Políticas de Población y Salud, Facultad de Medicina, Universidad Nacional Autónoma de México. Mexico City, Mexico.,Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública. Mexico City, Mexico
| | - Rubí Hernández-López
- Centro de Investigación de Políticas de Población y Salud, Facultad de Medicina, Universidad Nacional Autónoma de México. Mexico City, Mexico.,Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública. Mexico City, Mexico
| | - Elsa Yunes-Díaz
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública. Mexico City, Mexico
| | - Eduardo Lazcano-Ponce
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública. Mexico City, Mexico
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Lazcano-Ponce E, Sudenga SL, Torres BN, Stoler M, León-Maldonado L, Allen-Leigh B, Posso H, Quiterio M, Hernández-Nevarez MDP, Salmerón J, Giuliano AR. Incidence of external genital lesions related to human papillomavirus among Mexican men. A cohort study. Salud Publica Mex 2019; 60:633-644. [PMID: 30699268 DOI: 10.21149/8461] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Accepted: 09/18/2018] [Indexed: 01/23/2023] Open
Abstract
OBJECTIVE To determine external genital lesion (EGL) incidence -condyloma and penile intraepithelial neoplasia (PeIN)- and genital HPV-genotype progression to these EGLs. MATERIALS AND METHODS Participants (healthy males 18- 74y from Cuernavaca, Mexico, recruited 2005-2009, n=954) underwent a questionnaire, anogenital examination, and sample collection every six months;including excision biopsy on suspicious EGL with histological confirmation.Linear array assay PCR characterized 37 high/low-risk HPV-DNA types. EGL incidence and cumulative incidence were calculated, the latter with Kaplan-Meier. RESULTS EGL incidence was 1.84 (95%CI=1.42-2.39) per 100-person-years (py); 2.9% (95%CI=1.9-4.2) 12-month cumulative EGL.Highest EGL inci- dence was found in men 18-30 years:1.99 (95%CI=1.22-3.25) per 100py. Seven subjects had PeIN I-III (four with HPV16). HPV11 most commonly progresses to condyloma (6-month cumulative incidence=44.4%, 95%CI=14.3-137.8). Subject with high-risk sexual behavior had higher EGL incidence. CONCLUSIONS In Mexico, anogenital HPV infection in men is high and can cause condyloma. Estimation of EGL magnitude and associated healthcare costs is necessary to assess the need for male anti-HPV vaccination.
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Affiliation(s)
- Eduardo Lazcano-Ponce
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública. Cuernavaca, Morelos, Mexico
| | - Staci L Sudenga
- Center for Infection Research in Cancer, Moffitt Cancer Center and Research Institute.Tampa, Florida
| | - B Nelson Torres
- Center for Infection Research in Cancer, Moffitt Cancer Center and Research Institute.Tampa, Florida
| | - Mark Stoler
- University of Virginia Health System. Charlottesville, VA, USA
| | - Leith León-Maldonado
- Cátedra Conacyt, Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública. Cuernavaca, Morelos, México
| | - Betania Allen-Leigh
- Dirección de Salud Reproductiva, Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública. Cuernavaca, Morelos, México
| | - Héctor Posso
- Universidad de la Sabana. Chia-Cundinamarca, Colombia
| | - Manuel Quiterio
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública. Cuernavaca, Morelos, Mexico
| | | | - Jorge Salmerón
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública. Cuernavaca, Morelos, Mexico.,Unidad de Investigación Epidemiológica y en Servicios de Salud, Instituto Mexicano del Seguro Social. Cuernavaca, Morelos, México
| | - Anna R Giuliano
- Center for Infection Research in Cancer, Moffitt Cancer Center and Research Institute.Tampa, Florida
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18
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Domenech-Viñolas M, León-Maldonado L, Ramírez-Palacios P, Flores YN, Granados-García V, Brown B, Corona E, Liu S, Lazcano-Ponce E, Salmerón J. Incidence, psychosocial burden, and economic impact of genital warts in Mexico. Salud Publica Mex 2019; 60:624-632. [PMID: 30699267 DOI: 10.21149/10008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 11/14/2018] [Indexed: 02/02/2023] Open
Abstract
OBJECTIVE To estimate the burden of genital warts (GW)in Mexico. MATERIALS AND METHODS We estimated the annual incidence of GW based on data reported by specialist physicians. We also assessed GW treatment practices, the average cost of treatment, and the psychosocial burden of GW among patients. RESULTS The annual incidence of GW in Mexico was estimated to be 547 200 cases. Treatment procedures vary by specialist and patient gender. The estimated annual cost was $195 million USD. The psychosocial impact of GW was slightly greater in males than females. CONCLUSIONS This is the first evaluation of the burden of GW in Mexico. Our data suggest that GW are common, with significant health-related costs and psychosocial impact.
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Affiliation(s)
| | - Leith León-Maldonado
- Cátedra Conacyt, Instituto Nacional de Salud Pública. Cuernavaca, Morelos, México.,Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública. Cuernavaca, Morelos, México.,Centro de Investigación en Población, Políticas y Salud, Facultad de Medicina, Universidad Autónoma de México. Ciudad de México, México
| | - Paula Ramírez-Palacios
- Unidad de Investigación Epidemiológica y en Servicios de Salud, Instituto Mexicano del Seguro Social. Cuernavaca, Morelos, México
| | - Yvonne N Flores
- Unidad de Investigación Epidemiológica y en Servicios de Salud, Instituto Mexicano del Seguro Social. Cuernavaca, Morelos, México.,Department of Health Policy and Management, and Kaiser Permanente Center for Health Equity, University of California, Los Angeles. Los Angeles, CA, USA.,Cancer Prevention and Control Research Center, Fielding School of Public Health and Jonsson Comprehensive Cancer Center. Los Angeles, CA, USA
| | - Víctor Granados-García
- Unidad de Investigación Epidemiológica y en Servicios de Salud Área Envejecimiento, Centro Médico Nacional Siglo XXI. Ciudad de México, México
| | - Brandon Brown
- Department of Social Medicine, Population and Public Health, Riverside School of Medicine, University of California. Riverside, California, USA
| | - Edgar Corona
- Unidad de Investigación Epidemiológica y en Servicios de Salud, Instituto Mexicano del Seguro Social. Cuernavaca, Morelos, México.,David Geffen School of Medicine, University of California. Los Angeles, CA, USA
| | - Stephanie Liu
- Unidad de Investigación Epidemiológica y en Servicios de Salud, Instituto Mexicano del Seguro Social. Cuernavaca, Morelos, México.,Department of Epidemiology, School of Public Health, University of Washington. Seattle, WA, USA
| | - Eduardo Lazcano-Ponce
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública. Cuernavaca, Morelos, México
| | - Jorge Salmerón
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública. Cuernavaca, Morelos, México.,Centro de Investigación en Población, Políticas y Salud, Facultad de Medicina, Universidad Autónoma de México. Ciudad de México, México
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19
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Posso H, León-Maldonado L, Allen-Leigh B, Salmerón J, Quiterio M, Giuliano AR, Sudenga SL, Nyitray AG, Torres BN, Abrahamsen M, Lazcano-Ponce E. Prevalence and incidence of anal human papillomavirus infection in Mexican men: Need for universal prevention policies. Salud Publica Mex 2019; 60:645-652. [PMID: 30699269 DOI: 10.21149/8454] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Accepted: 08/30/2018] [Indexed: 01/20/2023] Open
Abstract
OBJECTIVE Describe the natural history of anal HPV among men. MATERIALS AND METHODS Prospective study among men 18-70 years (n=665), from Cuernavaca, Mexico who completed questionnaires and provided specimens (HPV genotyped) at enrollment and 1+ follow-up visit. HPV prevalence and incidence were estimated. Prevalence ratios were calculated with Poisson regression using robust variance estimation. Person-time for incident HPV infection was estimated using number of events modeled as Poisson variable for total person-months. RESULTS Anal infection prevalence: any HPV type=15%, high-risk=8.4%, HPV16=1.4%, tetravalent vaccine types (4vHPV)=4.4%, nonavalent vaccine types (9vHPV)=6.3%. Factors associated with prevalence: 50+ lifetime female sex partners (adjusted prevalence ratio, a PR=3.25, 95% CI:1.12- 9.47), 10+ lifetime male sex partners (aPR=3.06, 95%CI:1.4- 6.68), and 1+ recent male anal sex partners (aPR=2.28, 95%CI:1.15-4.5). Anal incidence rate: high-risk HPV=7.8/1000 person-months (95%CI:6.0-10.1), HPV16=1.8/1000 personmonths (95%CI:1.1-2.9),4vHPV=3.4/1000 person-months (95%CI:2.3-4.9) and 9vHPV=5.5/1000 person-months (95%CI:4.1-7.5). CONCLUSIONS Implementation of universal HPV vaccination programs, including men, is a public health priority.
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Affiliation(s)
- Hector Posso
- Universidad de la Sabana. Chia-Cundinamarca, Colombia
| | - Leith León-Maldonado
- Cátedra Conacyt, Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública. Cuernavaca, Morelos, México
| | - Betania Allen-Leigh
- Dirección de Salud Reproductiva, Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública. Cuernavaca, Morelos, México
| | - Jorge Salmerón
- Centro de Investigación en Políticas, Población y Salud, Facultad de Medicina, Universidad Nacional Autónoma de México. Ciudad de México, México.,Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública. Cuernavaca, Morelos, México
| | - Manuel Quiterio
- Unidad de Investigación Epidemiológica y en Servicios de Salud, Instituto Mexicano del Seguro Social. Cuernavaca, Morelos, México
| | - Anna R Giuliano
- Center for Infection Research in Cancer, Moffitt Cancer Center and Research Institute.Tampa, Florida
| | - Staci L Sudenga
- Center for Infection Research in Cancer, Moffitt Cancer Center and Research Institute.Tampa, Florida
| | - Alan G Nyitray
- Department of Epidemiology, The University of Texas School of Public Health. Houston, Texas, USA
| | - B Nelson Torres
- Center for Infection Research in Cancer, Moffitt Cancer Center and Research Institute.Tampa, Florida
| | - Martha Abrahamsen
- Center for Infection Research in Cancer, Moffitt Cancer Center and Research Institute.Tampa, Florida
| | - Eduardo Lazcano-Ponce
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública. Cuernavaca, Morelos, México
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Bhattarai R, Carabin H, Proaño JV, Flores-Rivera J, Corona T, Flisser A, León-Maldonado L, Budke CM. The monetary burden of cysticercosis in Mexico. PLoS Negl Trop Dis 2019; 13:e0007501. [PMID: 31291239 PMCID: PMC6645581 DOI: 10.1371/journal.pntd.0007501] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 07/22/2019] [Accepted: 05/31/2019] [Indexed: 11/19/2022] Open
Abstract
Background Taenia solium cysticercosis is a public health and agricultural problem in many low and middle-income countries where health education, sanitation, pig management practices and meat inspection infrastructure are insufficient. Cysticercosis affects both human and animal health and has important economic consequences. Very few studies have been conducted to evaluate the monetary burden of cysticercosis. This study aimed at estimating the 2015 costs associated with cysticercosis in humans and pigs in Mexico. Methods The monetary burden of human cysticercosis was estimated based on costs incurred by living with and treating epilepsy and severe chronic headaches associated with neurocysticercosis (NCC). The estimated cost of porcine cysticercosis took into consideration losses due to the reduction in the price of cysticercosis-infected animals. Epidemiologic and economic data were obtained from the published literature, government reports, and setting-specific questionnaires. Latin hypercube sampling methods were employed to sample the distributions of uncertain parameters and to estimate 95% credible regions (95% CRs). All results are reported in 2015 U.S.$. Findings The overall monetary burden associated with NCC morbidity was estimated at U.S.$215,775,056 (95% CR U.S.$109,309,560 –U.S.$361,924,224), with U.S.$436 (95% CR: U.S.$296 –U.S.$604) lost per patient. If loss of future years of income and productivity due to NCC-associated deaths was included, this value increased by U.S.$54.26 million, assuming that these individuals earned Mexico’s median wage salary. An additional U.S.$19,507,171 (95% CR U.S.$5,734,782 –U.S.$35,913,487) was estimated to be lost due to porcine cysticercosis. Conclusions This study suggests that T. solium cysticercosis results in considerable monetary losses to Mexico. Taenia solium cysticercosis is a parasitic disease, which can be transmitted between humans and pigs in areas of the world where pigs are raised in a traditional manner and latrines are not always used by the local population. Because cysticercosis affects humans and pigs, it is important to assess how much this infection costs both the public health and agricultural sectors in endemic countries such as Mexico. Costs associated with infection of both humans and pigs, in Mexico, were estimated using the literature, questionnaires, and publicly available data. Study findings suggest that T. solium cysticercosis results in considerable monetary losses to Mexico. The methodology developed here can be applied to estimate the monetary burden of cysticercosis in other regions in order to better prioritize disease control initiatives.
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Affiliation(s)
- Rachana Bhattarai
- Department of Veterinary Integrative Biosciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, Texas, United States of America
| | - Hélène Carabin
- Département de Pathologie et Microbiologie, Faculté de Médecine Vétérinaire, Université de Montréal, Saint-Hyacinthe, Canada
| | - Jefferson V. Proaño
- Hospital de Especialidades, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City, Mexico
| | - Jose Flores-Rivera
- Clinical Laboratory of Neurodegenerative Diseases, National Institute of Neurology and Neurosurgery, Mexico City, Mexico
| | - Teresa Corona
- Clinical Laboratory of Neurodegenerative Diseases, National Institute of Neurology and Neurosurgery, Mexico City, Mexico
| | - Ana Flisser
- Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | | | - Christine M. Budke
- Department of Veterinary Integrative Biosciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, Texas, United States of America
- * E-mail:
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León-Maldonado L, Cabral A, Brown B, Ryan GW, Maldonado A, Salmerón J, Allen-Leigh B, Lazcano-Ponce E. Feasibility of a combined strategy of HPV vaccination and screening in Mexico: the FASTER-Tlalpan study experience. Hum Vaccin Immunother 2019; 15:1986-1994. [PMID: 31184976 DOI: 10.1080/21645515.2019.1619401] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
There has been a noticeable shift in discussions about cervical cancer, moving from prevention to elimination. Interventions such as FASTER, human papillomavirus (HPV) vaccination and HPV screening are innovative intervention strategies which can be utilized to begin a path to elimination. To explore the feasibility of the FASTER strategy, an evaluation was carried out in eight primary health-care centers within the Tlalpan Health-Jurisdiction of Mexico City between March 2017 and August 2018. A mixed methods approach was used to evaluate three components: infrastructure, patient acceptability, and health-care professionals' perceptions. This included checklists of requirements for the infrastructure rollout of FASTER and interviews with women and health-care professionals. Nearly all (93%) of the 3,474 women aged 25-45 years accepted HPV vaccination as part of a combined vaccination and screening program. The main reason for acceptance was prevention, while having doubts about the vaccine's benefits was the main reason for refusal. Most of the 24 health-care professionals had a positive opinion toward HPV vaccination and identified the need to increase dissemination, inform the population clearly and concisely and currently extend the age range for vaccination. The evaluation of eight primary health-care centers showed they had the necessary infrastructure for the development of a joint HPV prevention strategy, but many centers required improvements to become more efficient. Together these findings suggest that although HPV vaccine acceptance was high, there is the need to increase education and awareness among potential vaccine recipients and health-care professionals to implement the FASTER strategy.
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Affiliation(s)
- L León-Maldonado
- a Cátedra CONACYT- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública , Cuernavaca , Morelos , México.,b Centro de Investigación en Políticas, Población y Salud, Facultad de Medicina, Universidad Autónoma de México , Ciudad de México , México
| | - A Cabral
- c Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública , Cuernavaca , Morelos , México
| | - B Brown
- d Center for Healthy Communities, Department of Social Medicine, Population and Public Health. University of California, Riverside School of Medicine , Riverside , CA , USA
| | - G W Ryan
- e Department of Community and Behavioral Health, University of Iowa College of Public Health. Riverside Dr ., Iowa City , LA , USA
| | - A Maldonado
- f Dirección de Salud Reproductiva, Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública , Cuernavaca , Morelos , México
| | - J Salmerón
- b Centro de Investigación en Políticas, Población y Salud, Facultad de Medicina, Universidad Autónoma de México , Ciudad de México , México
| | - B Allen-Leigh
- f Dirección de Salud Reproductiva, Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública , Cuernavaca , Morelos , México
| | - E Lazcano-Ponce
- g Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública , Cuernavaca , Morelos , México
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Lazcano-Ponce E, Salmerón J, González A, Allen-Leigh B, León-Maldonado L, Magis C, Aranda-Flores C, Conde-González C, Portillo-Romero AJ, Yunes-Díaz E, Rivera-Rivera L, Vargas G, Nyitray AG, Giuliano AR. Prevention and control of neoplasms associated with HPV in high-risk groups in Mexico City: The Condesa Study. ACTA ACUST UNITED AC 2018. [DOI: 10.21149/10034] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Denova-Gutiérrez E, Flores YN, Gallegos-Carrillo K, Ramírez-Palacios P, Rivera-Paredez B, Muñoz-Aguirre P, Velázquez-Cruz R, Torres-Ibarra L, Meneses-León J, Méndez-Hernández P, Hernández-López R, Salazar-Martínez E, Talavera JO, Tamayo J, Castañón S, Osuna-Ramírez I, León-Maldonado L, Flores M, Macías N, Antúnez D, Huitrón-Bravo G, Salmerón J. Health workers cohort study: methods and study design. Salud Publica Mex 2018; 58:708-716. [PMID: 28225947 DOI: 10.21149/spm.v58i6.8299] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 11/23/2016] [Indexed: 01/27/2023] Open
Abstract
Objective: To examine different health outcomes that are associated with specific lifestyle and genetic factors. Materials and methods: From March 2004 to April 2006, a sample of employees from three different health and academic institutions, as well as their family members, were enrolled in the study after providing informed consent. At baseline and follow-up (2010-2013), participants completed a self-administered questionnaire, a physical examination, and provided blood samples. Results: A total of 10 729 participants aged 6 to 94 years were recruited at baseline. Of these, 70% were females, and 50% were from the Mexican Social Security Institute. Nearly 42% of the adults in the sample were overweight, while 20% were obese. Conclusion: Our study can offer new insights into disease mechanisms and prevention through the analysis of risk factor information in a large sample of Mexicans.
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Affiliation(s)
- Edgar Denova-Gutiérrez
- Unidad de Investigación en Epidemiología Clínica, Hospital Infantil de México Federico Gómez. Ciudad de México, México
| | - Yvonne N Flores
- Unidad de Investigación Epidemiológica y en Servicios de Salud, Instituto Mexicano del Seguro Social. Cuernavaca Morelos, México.,UCLA Department of Health Policy and Management, Fielding School of Public Health and Jonsson Comprehensive Cancer Center. Los Angeles, California, USA
| | - Katia Gallegos-Carrillo
- Unidad de Investigación Epidemiológica y en Servicios de Salud, Instituto Mexicano del Seguro Social. Cuernavaca Morelos, México
| | - Paula Ramírez-Palacios
- Unidad de Investigación Epidemiológica y en Servicios de Salud, Instituto Mexicano del Seguro Social. Cuernavaca Morelos, México
| | - Berenice Rivera-Paredez
- Unidad de Investigación Epidemiológica y en Servicios de Salud, Instituto Mexicano del Seguro Social. Cuernavaca Morelos, México
| | - Paloma Muñoz-Aguirre
- Unidad de Investigación Epidemiológica y en Servicios de Salud, Instituto Mexicano del Seguro Social. Cuernavaca Morelos, México
| | - Rafael Velázquez-Cruz
- Laboratorio de Genómica del Metabolismo Óseo, Instituto Nacional de Medicina Genómica. Ciudad de México, México
| | - Leticia Torres-Ibarra
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública. Cuernavaca, México
| | - Joacim Meneses-León
- Unidad de Investigación Epidemiológica y en Servicios de Salud, Instituto Mexicano del Seguro Social. Cuernavaca Morelos, México
| | - Pablo Méndez-Hernández
- Facultad de Ciencias de la Salud, Universidad Autónoma de Tlaxcala. Tlaxcala, México.,Secretaría de Salud de Tlaxcala. Tlaxcala, México
| | - Rubí Hernández-López
- Unidad de Investigación Epidemiológica y en Servicios de Salud, Instituto Mexicano del Seguro Social. Cuernavaca Morelos, México
| | - Eduardo Salazar-Martínez
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública. Cuernavaca, México
| | - Juan O Talavera
- Centro de Adiestramiento e Investigación Clínica, Hospital de Especialidades CMN SXXI, Instituto Mexicano del Seguro Social. Ciudad de México, México
| | - Juan Tamayo
- Comité Mexicano para la Prevención de la Osteoporosis. Ciudad de México, México
| | - Susana Castañón
- Unidad de Investigación Epidemiológica y en Servicios de Salud, Instituto Mexicano del Seguro Social. Cuernavaca Morelos, México
| | - Ignacio Osuna-Ramírez
- Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Sinaloa. Culiacán, Sinaloa, México
| | - Leith León-Maldonado
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública. Cuernavaca, México
| | - Mario Flores
- Centro de Investigación en Nutrición y Salud, Instituto Nacional de Salud Pública. Cuernavaca, Morelos, México
| | - Nayeli Macías
- Centro de Investigación en Nutrición y Salud, Instituto Nacional de Salud Pública. Cuernavaca, Morelos, México
| | - Daniela Antúnez
- Unidad de Investigación Epidemiológica y en Servicios de Salud, Instituto Mexicano del Seguro Social. Cuernavaca Morelos, México
| | | | - Jorge Salmerón
- Unidad de Investigación Epidemiológica y en Servicios de Salud, Instituto Mexicano del Seguro Social. Cuernavaca Morelos, México.,Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública. Cuernavaca, México
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Allen-Leigh B, Uribe-Zúñiga P, León-Maldonado L, Brown BJ, Lörincz A, Salmeron J, Lazcano-Ponce E. Barriers to HPV self-sampling and cytology among low-income indigenous women in rural areas of a middle-income setting: a qualitative study. BMC Cancer 2017; 17:734. [PMID: 29121873 PMCID: PMC5679364 DOI: 10.1186/s12885-017-3723-5] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 10/30/2017] [Indexed: 11/10/2022] Open
Abstract
Background Data is needed about barriers to self-collection of Human Papillomavirus (HPV) samples and cytology among low-income, disadvantaged women living in rural areas of lower-income countries as these women are at increased risk of cervical cancer mortality. Methods Individual interviews (n = 29), focus groups (n = 7, 5–11 participants) and discussion groups (n = 2, 18–25 participants) were organized with women from three indigenous ethnic groups residing in rural areas in Mexico, after they were provided with free, self-sampled HPV tests. These groups are low-income, underserved by healthcare and have historically been on the receiving end of racism and social exclusion. Descriptive, qualitative content analysis was done, including two cycles of coding. Results Interview and focus/discussion group data indicate women had limited understanding of HPV’s role in cervical cancer etiology. They identified HPV’s existence, that cytology detects cervical cancer, the need for regular testing and that cervical cancer is sexually transmitted. Organizational barriers to clinic-based cytology included irregular supplies of disposable speculums, distance to clinics and lack of clear communication by healthcare personnel. Women considered self-collected HPV-testing easy, less embarrassing and less painful than cytology, an opportunity for self-care and most felt they understood how to take a self-sample after a 20-min explanation. Some women feared hurting themselves when taking the self-sample or that they would take the sample incorrectly, which they worried would make the test useless. Attending HPV-testing in groups facilitated use by allowing women to discuss their doubts and fears before doing self-collection of the sample or to ask other women who were the first to do the self-sampling what the experience had been like (whether it hurt and how easy it was). Lack of indoor bathrooms was a barrier to doing HPV self-sampling at home, when those homes were resource-poor (one-room dwellings). Conclusions Low-income, indigenous Mexican women residing in rural, underserved areas identified their need for cervical cancer screening but encountered multiple barriers to cytology-based screening. They found a number of advantages of HPV self-sampled tests. Employing self-collected HPV-testing instead of cytology could resolve some but not all gender-related, organizational or technical quality-of-care issues within cervical cancer detection and control programs. Electronic supplementary material The online version of this article (10.1186/s12885-017-3723-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Betania Allen-Leigh
- Public Health Methods Department, Reproductive Health Division, Center for Population Health Research, National Institute of Public Health, Mexico City, Mexico
| | - Patricia Uribe-Zúñiga
- National Center for the Prevention and Control of HIV and AIDS (CENSIDA), Mexico City, Mexico
| | - Leith León-Maldonado
- CONACYT, Center for Population Health Research, National Institute of Public Health, Cuernavaca, Morelos, Mexico
| | - Brandon J Brown
- Center for Healthy Communities, Department of Social Medicine and Population Health, UCR School of Medicine, UC Irvine, Riverside, California, USA
| | - Attila Lörincz
- Center for Cancer Prevention, Wolfson Institute of Preventive Medicine, Queen Mary University of London, London, UK
| | - Jorge Salmeron
- Center for Population Health Research, National Institute of Public Health, Av. Universidad #655, Colonia Sta. Ma. Ahuacatitlán, 62508, Cuernavaca, Morelos, Mexico.,Epidemiology and Health Services Research Unit, Mexican Social Security Institute (IMSS), Cuernavaca, Morelos, Mexico
| | - Eduardo Lazcano-Ponce
- Center for Population Health Research, National Institute of Public Health, Av. Universidad #655, Colonia Sta. Ma. Ahuacatitlán, 62508, Cuernavaca, Morelos, Mexico.
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Rudolph SE, Lorincz A, Wheeler CM, Gravitt P, Lazcano-Ponce E, Torres-Ibarra L, León-Maldonado L, Ramírez P, Rivera B, Hernández R, Franco EL, Cuzick J, Méndez-Hernández P, Salmerón J. Population-based prevalence of cervical infection with human papillomavirus genotypes 16 and 18 and other high risk types in Tlaxcala, Mexico. BMC Infect Dis 2016; 16:461. [PMID: 27585544 PMCID: PMC5008001 DOI: 10.1186/s12879-016-1782-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Accepted: 08/15/2016] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Cervical cancer remains an important cause of cancer mortality for Mexican women. HPV 16/18 typing may help to improve cervical cancer screening. Here we present the prevalence of high-risk human papillomavirus (hrHPV) including HPV16 and HPV18 from the FRIDA (Forwarding Research for Improved Detection and Access) population. METHODS Beginning in 2013, we recruited 30,829 women aged 30-64 in Tlaxcala, Mexico. Cervical samples were collected and tested for 14 hrHPV genotypes (16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58, 59, 66, and 68). We used logistic regression to estimate odds ratios with 95 % confidence intervals for hrHPV infections according to putative risk factors. RESULTS Prevalence of infection with any of the 14 hrHPV types was 11.0 %. The age-specific prevalence of all hrHPV formed a U-shaped curve with a higher prevalence for women aged 30-39 and 50-64 than women aged 40-49. Across all age groups, 2.0 % of women were positive for HPV16 and/or HPV18 (HPV16/18), respectively. HPV16/18 prevalence also showed a U-shaped curve with increased prevalence estimates for women aged both 30-39 and 60-64. Both prevalence curves had a significant quadratic age coefficient. Infections with hrHPV were positively associated with an increased number of lifetime sexual partners, a history of sexually transmitted disease, being unmarried, use of hormonal contraception, having a history of smoking and reported condom use in the multivariate model. CONCLUSIONS The FRIDA population has a bimodal distribution of both hrHPV and HPV16/18 positivity with higher prevalences at ages 30-39 and 60-64. These findings will help to evaluate triage algorithms based on HPV genotyping. TRIAL REGISTRATION The trial is registered with ClinicalTrials.gov, number NCT02510027 .
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Affiliation(s)
- Samantha E. Rudolph
- UC Berkeley-UCSF Joint Medical Program, Berkeley, CA USA
- Unidad de Investigación Epidemiológica y en Servicios de Salud, Instituto Mexicano del Seguro Social, Cuernavaca, Morelos, México
| | - Attila Lorincz
- Wolfson Institute of Preventive Medicine, Barts and The London School of Medicine, Queen Mary University of London, London, UK
| | - Cosette M. Wheeler
- Department of Pathology, University of New Mexico School of Medicine, Albuquerque, NM USA
| | - Patti Gravitt
- Department of Pathology, University of New Mexico School of Medicine, Albuquerque, NM USA
| | - Eduardo Lazcano-Ponce
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Avenida Universidad 655, Colonia Sta. María Ahuacatitlán, 62100 Cuernavaca, Morelos Mexico
| | - Leticia Torres-Ibarra
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Avenida Universidad 655, Colonia Sta. María Ahuacatitlán, 62100 Cuernavaca, Morelos Mexico
| | - Leith León-Maldonado
- CONACYT, Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Morelos México
| | - Paula Ramírez
- Unidad de Investigación Epidemiológica y en Servicios de Salud, Instituto Mexicano del Seguro Social, Cuernavaca, Morelos, México
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Avenida Universidad 655, Colonia Sta. María Ahuacatitlán, 62100 Cuernavaca, Morelos Mexico
| | - Berenice Rivera
- Unidad de Investigación Epidemiológica y en Servicios de Salud, Instituto Mexicano del Seguro Social, Cuernavaca, Morelos, México
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Avenida Universidad 655, Colonia Sta. María Ahuacatitlán, 62100 Cuernavaca, Morelos Mexico
| | - Rubí Hernández
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Avenida Universidad 655, Colonia Sta. María Ahuacatitlán, 62100 Cuernavaca, Morelos Mexico
| | - Eduardo L. Franco
- Division of Cancer Epidemiology, McGill University, Montreal, Canada
| | - Jack Cuzick
- Wolfson Institute of Preventive Medicine, Barts and The London School of Medicine, Queen Mary University of London, London, UK
| | - Pablo Méndez-Hernández
- Departamento de Enseñanza, Capacitación e Investigación, Secretaría de Salud de Tlaxcala, Tlaxcala, Tlaxcala Mexico
- Facultad de Ciencias de la Salud, Universidad Autónoma de Tlaxcala, Tlaxcala, Tlaxcala Mexico
| | - Jorge Salmerón
- Unidad de Investigación Epidemiológica y en Servicios de Salud, Instituto Mexicano del Seguro Social, Cuernavaca, Morelos, México
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León-Maldonado L, Wentzell E, Brown B, Allen-Leigh B, Torres-Ibarra L, Salmerón J, Billings DL, Thrasher JF, Lazcano-Ponce E. Perceptions and Experiences of Human Papillomavirus (HPV) Infection and Testing among Low-Income Mexican Women. PLoS One 2016; 11:e0153367. [PMID: 27149525 PMCID: PMC4858263 DOI: 10.1371/journal.pone.0153367] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Accepted: 03/29/2016] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND HPV infection causes cervical cancer, a major contributor to morbidity and mortality among low-income Mexican women. Human papillomavirus (HPV) DNA testing is now a primary screening strategy in Mexico's early cervical cancer detection program (ECDP). Research on Mexican women's perceptions of HPV and testing is necessary for establishing culturally appropriate protocols and educational materials. Here, we explore perceptions about HPV and HPV-related risk factors among low-income Mexican ECDP participants. METHODS We conducted semi-structured interviews with 24 ECDP participants from two primary care health clinics in Michoacán state, Mexico. Interviews addressed women's understandings of and experiences with HPV and HPV testing. Analysis was inductive and guided by the Health Belief Model with a focus on gender. RESULTS Women's confusion about HPV and HPV screening caused emotional distress. They understood HPV to be a serious disease that would always cause severe symptoms, often characterizing it as analogous to HIV or inevitably carcinogenic. Women also attributed it to men's sexual behaviors, specifically infidelity and poor hygiene. Women described both sexes' desire for sex as natural but understood men's negative practices of masculinity, like infidelity, as the causes of women's HPV infection. Some women believed dirty public bathrooms or heredity could also cause HPV transmission. CONCLUSIONS These results are consistent with prior findings that geographically and economically diverse populations lack clear understandings of the nature, causes, or symptoms of HPV, even among those receiving HPV testing. Our findings also reveal that local cultural discourse relating to masculinity, along with failure to provide sufficient education to low-income and indigenous-language speaking patients, exacerbate women's negative emotions surrounding HPV testing. While negative emotions did not deter women from seeking testing, they could be ameliorated with better health education and communication.
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Affiliation(s)
- Leith León-Maldonado
- CONACYT, Instituto Nacional de Cancerología, Ciudad de México, México
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, México
| | - Emily Wentzell
- Department of Anthropology, The University of Iowa, Iowa City, IA, United States of America
| | - Brandon Brown
- Department of Social Medicine and Population Health, School of Medicine, University of California, Riverside, CA, United States of America
| | - Betania Allen-Leigh
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, México
| | - Leticia Torres-Ibarra
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, México
| | - Jorge Salmerón
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, México
- Unidad de Investigación Epidemiológica y en Servicios de Salud, Instituto Mexicano del Seguro Social, Cuernavaca, Morelos, México
| | - Deborah L. Billings
- Department of Health, Promotion, Education and Behavior, Arnold School of Public Health, University of South Carolina, Columbia, SC, United States of America
| | - James F. Thrasher
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, México
- Department of Health, Promotion, Education and Behavior, Arnold School of Public Health, University of South Carolina, Columbia, SC, United States of America
| | - Eduardo Lazcano-Ponce
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, México
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Torres-Ibarra L, Lazcano-Ponce E, Franco EL, Cuzick J, Hernández-Ávila M, Lorincz A, Rivera B, Ramírez P, Mendiola-Pastrana I, Rudolph SE, León-Maldonado L, Hernández R, Barrios E, Gravitt P, Moscicki AB, Schmeler KM, Flores YN, Méndez-Hernández P, Salmerón J. Triage strategies in cervical cancer detection in Mexico: methods of the FRIDA Study. Salud Publica Mex 2016; 58:197-210. [PMID: 27557378 DOI: 10.21149/spm.v58i2.7789] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Accepted: 12/07/2015] [Indexed: 11/06/2022] Open
Abstract
OBJECTIVE This paper describes the study design and baseline characteristics of the study population, including the first 30 829 women who enrolled in the Forwarding Research for Improved Detection and Access for Cervical Cancer Screening and Triage (FRIDA Study). This is a large population based study that is evaluating the performance and cost-effectiveness of different triage strategies for high-risk HPV (hrHPV) positive women in Mexico. MATERIALS AND METHODS The target population is more than 100 000 women aged 30 to 64 years who attend the Cervical Cancer Screening Program in 100 health centers in the state of Tlaxcala, Mexico. Since August 2013, all women in the region have been invited to enroll in the study. The study participants are evaluated to determine hrHPV infection using the Cobas 4800 HPV test. The HPV-16/18 genotyping and cytology triage strategies are performed as reflex tests in all hrHPV-positive participants. Women with a positive HPV-16/18 test and/or abnormal cytology (atypical squamous cells of undetermined significance or worse, ASCUS+) are referred for colposcopy evaluation, where a minimum of four biopsies and an endocervical sample are systematically collected. Histologic confirmation is performed by a standardized panel of pathologists. RESULTS Among the 30 829 women who have been screened, the overall prevalence of hrHPV is 11.0%. The overall prevalence of HPV16 and HPV18 are 1.5% and 0.7%, respectively. Cytological abnormalities (ASCUS+) were detected in 11.8% of the hrHPV-positive women. A total of 27.0% (920/3,401) of the hrHPV-positive women were referred to colposcopy because of a positive HPV16/18 test and/or abnormal reflex cytology, (31.6% had only ASCUS+, 53.6% were HPV16/18 positive with a normal cytology result, and 9.5% were positive to both triage tests). CONCLUSION The results of this study will help policy makers and health service providers establish the best practices for triage in cervical cancer screening in Mexico and other countries.
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León-Maldonado L, Allen-Leigh B, Lazcano-Ponce E. Consejería en la detección de VPH como prueba de tamizaje de cáncer cervical: un estudio cualitativo sobre necesidades de mujeres de Michoacán, México. Salud Publica Mex 2014. [DOI: 10.21149/spm.v56i5.7377] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Objetivo. Explorar las necesidades de información y consejería de un grupo de mujeres mexicanas al utilizar la prueba de virus de papiloma humano (VPH). Material y métodos. En 2011, se realizaron 24 entrevistas semiestructuradas a mujeres que recibieron el resultado de una prueba de VPH, en dos municipios del estado de Michoacán. El análisis cualitativo de las entrevistas se realizó con las técnicas de la comparación constante. Resultados. Durante el tamizaje, las mujeres recibieron escasa consejería; experimentaron angustia y confusión. Las usuarias de la prueba se mostraron interesadas en recibir información sobre el VPH y el cáncer cervical, el significado de sus resultados, los pasos que habrían de realizar en la atención, apoyo emocional e información vinculada con la transmisión sexual de VPH. Conclusiones. Se requiere diseñar e implementar políticas para impartir educación para la salud y consejería, a la par de la realización de pruebas de VPH.
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León-Maldonado L, Allen-Leigh B, Lazcano-Ponce E. [Counseling for HPV detection when used to screen for cervical cancer: a qualitative study on the needs of women from Michoacan, Mexico]. Salud Publica Mex 2014; 56:519-527. [PMID: 25604297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Accepted: 08/07/2014] [Indexed: 06/04/2023] Open
Abstract
OBJECTIVE To explore the information and counseling needs of a group of Mexican women during use of the HPV test. MATERIALS AND METHODS In 2011, 24 semistructured interviews were done with women upon receiving HPV test results in two municipalities in the state of Michoacan. Qualitative analysis of the interviews was done using constant comparison techniques. RESULTS During their use of screening services women received limited counseling; they felt anguish and confusion. Women were interested in receiving information and advice on HPV and cervical cancer, the meaning of test result, next steps to be taken in their healthcare use as well as information and emotional support related to the sexual transmission of HPV. CONCLUSIONS The design and implementation of policies are needed which instigate health education and counseling in conjunction with HPV testing.
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Affiliation(s)
- Leith León-Maldonado
- Departamento de Control de Enfermedades Transmisibles por Vector y Zoonosis, Subdirección de Servicios de Salud, Secretaría de Salud de Michoacán, Morelia, Michoacán, México
| | - Betania Allen-Leigh
- Dirección de Salud Reproductiva, Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, México, Distrito Federal, México
| | - Eduardo Lazcano-Ponce
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, México
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