Chlamyweb Study I: rationale, design and acceptability of an internet-based chlamydia testing intervention

Differential uptake and effects of digital sexually transmitted and bloodborne infection testing interventions among equity-seeking groups: a scoping review

BACKGROUND

Digital sexually transmitted and bloodborne infection (STBBI) testing interventions have gained popularity. However, evidence of their health equity effects remains sparse. We conducted a review of the health equity effects of these interventions on uptake of STBBI testing and explored design and implementation factors contributing to reported effects.

METHODS

We followed Arksey and O'Malley's framework for scoping reviews (2005) integrating adaptations by Levac et al (2010). We searched OVID Medline, Embase, CINAHL, Scopus, Web of Science, Google Scholar and health agency websites for peer-reviewed articles and grey literature comparing uptake of digital STBBI testing with in-person models and/or comparing uptake of digital STBBI testing among sociodemographic strata, published in English between 2010 and 2022. We extracted data using the Place of residence, Race, Occupation, Gender/Sex, Religion, Education, Socioeconomic status (SES), Social capital and other disadvantaged characteristics (PROGRESS-Plus) framework, reporting differences in uptake of digital STBBI testing by these characteristics.

RESULTS

We included 27 articles from 7914 titles and abstracts. Among these, 20 of 27 (74.1%) were observational studies, 23 of 27 (85.2%) described web-based interventions and 18 of 27 (66.7%) involved postal-based self-sample collection. Only three articles compared uptake of digital STBBI testing with in-person models stratified by PROGRESS-Plus factors. While most studies demonstrated increased uptake of digital STBBI testing across sociodemographic strata, uptake was higher among women, white people with higher SES, urban residents and heterosexual people. Co-design, representative user recruitment, and emphasis on privacy and security were highlighted as factors contributing to health equity in these interventions.

CONCLUSION

Evidence of health equity effects of digital STBBI testing remains limited. While digital STBBI testing interventions increase testing across sociodemographic strata, increases are lower among historically disadvantaged populations with higher prevalence of STBBIs. Findings challenge assumptions about the inherent equity of digital STBBI testing interventions, emphasising the need to prioritise health equity in their design and evaluation.

Treatment and Partner Notification Outcomes for Clients Diagnosed With Chlamydia and Gonorrhea Through GetCheckedOnline Compared With Sexually Transmitted Infection Clinics in British Columbia, Canada

A study comparing treatment and partner notification outcomes for people diagnosed with chlamydia or gonorrhea found no differences between clients of Internet-based and clinic-based testing services.

Background

Whether treatment, engagement in partner notification (PN), and PN outcomes differ between clients of Internet-based and clinic-based testing services is poorly understood. We compared these outcomes between people diagnosed with chlamydia and/or gonorrhea (CT/GC) through a sexually transmitted infection (STI) clinic service and GetCheckedOnline (GCO), an Internet-based testing service in British Columbia.

Methods

We conducted a retrospective matched cohort study among CT/GC cases where each case diagnosed through GCO in 2016 to 2017 was matched to 2 STI clinic cases by diagnosis, sex, age group, and specimen collection date. Data were collected through chart review, with outcomes compared using appropriate statistical tests.

Results

Of 257 GCO and 514 matched clinic cases, case treatment was high and did not differ between GCO (254 of 257 [98.9%]) and clinic (513 of 514 [99.8%]) cases, as was engagement in PN (250 of 257 [97.2%] vs. 496 of 514 [96.5%]). There was no difference in the proportion of notified partners between GCO (159 of 270 [58.9%]) and clinic (253 of 435 [58.2%]) cases, although a greater proportion of partners reported by clinic cases were notified by STI nurses (43 of 435 [9.9%]) versus GCO cases (6 of 270 [2.2%]).

Conclusions

GetCheckedOnline clients diagnosed with CT/GC demonstrated similar treatment uptake and engagement in PN to clinic clients, and PN outcomes did not differ. The greater reliance on STI clinic nurses for PN among clinic clients may be related to having had an initial in-person testing visit.

Online HIV/STI Risk Test (ORT): A prospective cross-sectional study among sexually active individuals in Germany

BACKGROUND

Our goal was to develop and evaluate an anonymous self-administrable web-based test to determine risk for HIV/STI.

METHODS

The Online HIV/STI Risk Test was developed and hosted since 12/2017. 11,529 participants completed the test and 10,668 were analyzed. The test included multiple choice questions about sociodemographic data, sexuality, sexual risk behavior, HIV/STI testing. Participant data was stratified by gender and sexuality and analyzed.

RESULTS

84.5 % were aged 18-39, 7.5 % < 18 and 8.1 % > 40. Males were 53.1 %, female 46.3 % and trans 0.6 %. 12.5 % were men who have sex with men (MSM). 59.1 % and 66.0 % of participants were vaccinated for hepatitis A and B respectively, but 75.1 % unvaccinated for HPV. Prior and repeated instances of HIV or other STI were higher among MSM. Yet, 61.4 % females, 70 % males and 55.4 % MSM had never tested for an STI. Although prevalence of > 3 sexual partners in the last twelve months was highest among MSM, condomless sex was greater among women. 34.5 % of males, 25.6 % of females, and 75 % of MSM engaged in anal sex respectively.

CONCLUSIONS

The online HIV/STI Risk Test is a useful tool to acquire data on STI risk-behavior for strategizing STI prevention, testing, and vaccination, thus improving sexual health.

What is the effectiveness of community-based health promotion campaigns on chlamydia screening uptake in young people and what barriers and facilitators have been identified? A mixed-methods systematic review

BACKGROUND

The UK National Chlamydia Screening Programme uses an opportunistic approach. Many programmes use campaigns to raise awareness of chlamydia screening in young people. This review aimed to assess the effectiveness of campaigns on uptake of chlamydia screening in young people.

METHODS

We conducted a mixed-methods systematic review of articles assessing the outcomes of community-based health-promotion campaigns to increase chlamydia screening in young people, their experiences of the campaigns and other facilitators and barriers to the conduct of the campaigns. We searched four databases for quantitative and qualitative studies with no language restrictions.

MAIN RESULTS

From 10 329 records identified, 19 studies (20 articles) were included in the review: 14 quantitative, 2 qualitative and 3 mixed methods. All studies with quantitative outcomes were before-after study designs or interrupted time series. The prediction interval for relative change (RC) in test counts ranged from 0.95 to 1.56, with a summary pooled estimate of RC 1.22 (95% CI 1.14 to 1.30, 13 studies, I²=97%). For test positivity rate, 95% prediction interval was 0.59 to 1.48, with a summary pooled estimate of RC 0.93 (95% CI 0.81 to 1.07, 8 studies, I²=91.8%). Large variation in characteristics between studies precluded exploring outcomes by type of campaign components. Seven major qualitative themes to improve screening were identified: targeting of campaigns; quality of materials and message; language; anonymity; use of technology; relevance; and variety of testing options.

CONCLUSIONS

Health promotion campaigns aiming to increase chlamydia testing in those aged 15-24 years may show some effectiveness in increasing overall numbers of tests, however numbers of positive tests do not follow the same trend. Qualitative findings indicate that campaigns require clear, relevant messaging that displays the full range of testing options and assures anonymity in order to be effective.

[Pelvic Inflammatory Disease - Synergies between Family Practices and Gynaecological Specialised Assessment]

Pelvic Inflammatory Disease - Synergies between Family Practices and Gynaecological Specialised Assessment Abstract. The 'pelvic inflammatory disease' (PID) describes an ascending inflammation of the upper female genital tract, beginning with a local cervicitis and proceeding to endometritis and adnexitis. It is a common clinical picture with rising numbers in recent years, and it occurs both in gynaecological and general practice. The symptoms are often unspecific, discrete or althogehter lacking. In order to reduce long-term risks of chronic pelvic pain, sterility and/or ectopic pregnancies, rapid diagnosis followed by immediate therapy and a good interdisciplinary cooperation are necessary. Screening programs for chlamydia and gonococcus as the most common pathogens of PID have not yet been implemented in Switzerland so far.

[Pelvic inflammatory diseases: Microbiologic diagnosis - CNGOF and SPILF Pelvic Inflammatory Diseases Guidelines]

OBJECTIVES

To determine the microorganisms potentially involved in pelvic inflammatory diseases (PIDs) and the different diagnostic methods of PID.

METHODS

PubMed and International Guidelines search.

RESULTS

PIDs have various microbial causes. The pathogenic role of the main agents of sexually transmitted infections (STIs), Chlamydia trachomatis, Neisseria gonorrhoeae and Mycoplasma genitalium is well demonstrated (NP1). C. trachomatis is the most commonly described bacterium in PID (NP1), especially in women under 30 years old. PIDs also occur in situations that decrease the effectiveness of the cervix microbiological lock, such as bacterial vaginosis, allowing facultative vaginal bacteria such as Escherichia coli, Streptococcus agalactiae and anaerobes to ascend to the uterine cavity. Nevertheless, participation of the diverse bacteria of the vaginal microbiota, in particular anaerobes, and the polymicrobial character of PIDs are still differently appreciated. In the case of uncomplicated PID, to obtain a microbiological diagnosis, endocervical sampling is recommended during gynecological examination under speculum (grade B). A first swab allows for a smear on a slide for direct examination (Gram, MGG). A second swab, in an adapted transport medium, is useful for standard culture with N. gonorrhoeae and facultative vaginal flora bacteria cultures, with antibiotic susceptibility testing. A third swab, in an appropriate transport medium, allows for the search for N. gonorrhoeae, C. trachomatis, and if possible M. genitalium by nucleic acid amplification techniques (NAATs), (NP1). It is possible to only use one swab in a transport medium suitable for (i) survival of bacteria and (ii) NAATs. When the diagnosis of PID is clinically compatible, a positive NAAT for one or more of the three STI-associated bacteria on a genital sample supports the PID diagnosis (NP1). On the other hand, a negative NAAT does not allow the exclusion of an STI agent for PID diagnosis (NP1). In situations where speculum use is not possible, vaginal sampling will be performed by default. In case of complicated IGH, tuboperitoneal samples can be performed either radiologically or surgically. Since these sites are sterile, any bacteria present will be considered pathogenic (NP2). C. trachomatis serology is not interesting as a first line diagnostic tool for PID diagnosis and is not useful for monitoring the evolution of PID (NP1).

Innovative Approach for Enhancing Testing of HIV, Hepatitis B, and Hepatitis C in the General Population: Protocol for an Acceptability and Feasibility Study (BaroTest 2016)

Background

Despite substantial screening for HIV, hepatitis B virus (HBV), and hepatitis C virus (HCV) infections in France, a great number of infected persons remain undiagnosed. In this context, Santé publique France experimented with a new screening approach for HBV, HCV, and HIV infection, based on home self-sampling using dried blood spot (DBS) for blood collection.

Objective

The objectives of the BaroTest study were to assess the acceptability and feasibility of this approach and to update the prevalence estimates of HBV, HCV, and HIV infections in the general population.

Methods

Participants were enrolled using the 2016 Health Barometer, a national cross-sectional telephone survey based on a large representative sample of the general population aged 15 to 75 years (N=15,000). Upon completion of the questionnaire, any participant in the Health Barometer aged 18 to 75 years, having medical health insurance, and not under guardianship was invited to receive a self-sampling kit delivered by standard postal mail and to return the DBS card to the laboratory. The laboratory was then responsible for reporting the results to the participants. Acceptability of the protocol was based on the percentage of eligible individuals agreeing to receive the self-sampling kit, on the proportion of people returning the DBS card, and on the proportion of participants out of the total eligible population. The feasibility of the approach was based on the number of participants with adequately filled blood spots and the number of participants with blood spots for which at least one virological analysis could be performed. A complex system of reminders was implemented to increase the participation rate. Accordingly, we assumed that 35.00% (4900/14,000) of eligible persons would accept and return their DBS card. As the highest expected prevalence was for HBV infection, estimated at 0.65% in 2004, 5000 persons would make it possible to estimate this prevalence with an accuracy of approximately 0.22%. All indicators can be analyzed according to the characteristics of the participants collected in the Health Barometer questionnaire. BaroTest was approved by the French Ethics Committee (November 11, 2015) and the Commission on Information Technology and Liberties (December 24, 2015). The study has been registered by the French medical authority under number 2015-A01252-47 on November 10, 2015.

Results

The results on acceptability and feasibility are expected in the last quarter of 2018 and those on the prevalence estimates in the first semester of 2019.

Conclusions

The BaroTest results will help to inform new strategies for HIV, HBV, and HCV screening, and the Health Barometer provides a reliable updated assessment of the burden of HBV, HCV, and HIV infections in the general population in France while reducing the costs typically associated with this type of research.

Registered Report Identifier

RR1-10.2196/9797

Comparing the characteristics of users of an online service for STI self-sampling with clinic service users: a cross-sectional analysis

Objectives

Online services for self-sampling at home could improve access to STI testing; however, little is known about those using this new modality of care. This study describes the characteristics of users of online services and compares them with users of clinic services.

Methods

We conducted a cross-sectional analysis of routinely collected data on STI testing activity from online and clinic sexual health services in Lambeth and Southwark between 1January 2016 and 31March 2016. Activity was included for chlamydia, gonorrhoea, HIV and syphilis testing for residents of the boroughs aged 16 years and older. Logistic regression models were used to explore potential associations between type of service use with age group, gender, ethnic group, sexual orientation, positivity and Index of Multiple Deprivation (IMD) quintiles. We used the same methods to explore potential associations between return of complete samples for testing with age group, gender, ethnic group, sexual orientation and IMD quintiles among online users.

Results

6456 STI tests were carried out by residents in the boroughs. Of these, 3582 (55.5%) were performed using clinic services and 2874 (44.5%) using the online service. In multivariate analysis, online users were more likely than clinic users to be aged between 20 and 30 years, female, white British, homosexual or bisexual, test negative for chlamydia or gonorrhoea and live in less deprived areas. Of the individuals that ordered a kit from the online service, 72.5% returned sufficient samples. In multivariate analysis, returners were more likely than non-returners to be aged >20 years and white British.

Conclusion

Nearly half (44.5%) of all basic STI testing was done online, although the characteristics of users of clinic and online services differed and positivity rates for those using the online service for testing were lower. Clinics remain an important point of access for some groups.

Chlamyweb Study II: a randomised controlled trial (RCT) of an online offer of home-based Chlamydia trachomatis sampling in France

BACKGROUND

The number of cases of Chlamydia trachomatis (Ct) diagnosed has increased in the past 15 years in France as well as in other European countries. This paper reports a randomised controlled trial (RCT) to evaluate whether the offer of home-based testing over the internet increased the number of young people tested for chlamydia compared with the current testing strategy and to estimate the number and risks factors of the infected population. This RCT took place as an element of the Chlamyweb Study-a study aiming to evaluate an intervention (the Chlamyweb Intervention) involving the offer of a free self-sampling kit online to sexually active men and women aged 18-24 years in France.

METHODS

Participants in the Chlamyweb RCT (n=11 075) received either an offer of a free self-sampling kit (intervention group) or were invited to be screened in primary care settings (control group). Risks ratios were used to compare screening rates between the intervention and control groups. Risk factors were analysed for infected people in the intervention group.

RESULTS

The screening frequency was about three times higher among young people who received a self-sampling kit than those who only received a tailored recommendation to be screened (29.2% vs 8.7%). Although rates of screening among men were lower than among women (23.9% vs 33.9%), the intervention effect was greater among men (adjusted risk ratios (aRR)=4.55 vs aRR=2.94). Ct positivity (6.8%) was similar to that observed in STI clinics. It was higher in women (8.3%) than in men (4.4%).

CONCLUSIONS

These results invite us to consider the establishment of a large home-based screening programme, although additional studies including economic assessments are needed to evaluate the most appropriate combination of strategies in the French context.

TRIAL REGISTRAION NUMBER

AFFSAPS n° IDRCB 0211-A01000-41; Results.