Prevalence and risk factors for sexually transmitted infections among people living with HIV attending a sexually transmitted infection clinic in Trinidad

High rates of Treponema pallidum, Neisseria gonorrhoeae, Chlamydia trachomatis, or Trichomonas vaginalis co-infection in people with HIV: a systematic review and meta-analysis

PURPOSE

People living with HIV (PWH) experience a disproportionate burden of sexually transmitted infections (STIs), leading to more severe health outcomes and increasing the risk of HIV transmission. The presence of untreated STIs can accelerate HIV disease progression, while HIV infection can complicate STI diagnosis and treatment. Despite this interconnectedness, comprehensive data on the global prevalence of specific STIs among PWH remain limited. This systematic review aims to synthesize existing data to provide a more accurate picture of the prevalence of co-infection with Treponema pallidum, Neisseria gonorrhoeae, Chlamydia trachomatis or Trichomonas vaginalis in PWH, while also identifying critical knowledge gaps and informing future research priorities.

METHODS

We searched databases for eligible studies reporting the prevalence of Treponema pallidum, Neisseria gonorrhoeae, Chlamydia trachomatis, or Trichomonas vaginalis among PWH, published from January 1, 2000, to February 1, 2023. From 22,290 identified articles, 127 independent studies meeting the inclusion criteria were included in this meta-analysis.

RESULTS

The overall global co-infection prevalence of Treponema pallidum, Neisseria gonorrhoeae, Chlamydia trachomatis, and Trichomonas vaginalis in PWH, was 4.8% (95%CI: 4.7-5.0%), 0.8% (95%CI: 0.6-0.9%), 2.5% (95%CI: 2.2-2.7%), and 3.0% (95%CI: 2.7-3.3%), respectively. The global prevalence of these four STIs in PWH is high, especially in Africa and Southeast Asia and in MSM and TGW populations. Based on the subgroup analyses, we further found that there was a high prevalence of Treponema pallidum and Chlamydia trachomatis in Southeast Asia and a high infection of Trichomonas vaginalis in the whole of Africa. Treponema pallidum infection was more common in males than females, and Chlamydia trachomatis and Trichomonas vaginalis infections were more common in females than males. Besides, high infection rates of Treponema pallidum, Neisseria gonorrhoeae, and Chlamydia trachomatis were detected in men who have sex with men (MSM) + transgender women (TGW), while high infection rates of Trichomonas vaginalis were found in sex workers and pregnant women.

CONCLUSION

The study confirmed high prevalence of four sexually transmitted pathogens in PWH, noting regional, gender, and subpopulation-specific differences. It offered insights for targeted interventions and healthcare strategies. The research underscored the necessity for enhanced data collection and expanded screening/treatment for vulnerable populations and regions.

Burden of Disease of Gonorrhoea in Latin America: Systematic Review and Meta-analysis

INTRODUCTION

Neisseria gonorrhoeae causes gonorrhoea, a globally neglected but increasing disease. This systematic review and meta-analysis reviewed the epidemiology and economic burden of gonorrhoea in Latin America and the Caribbean (LAC).

METHODS

We searched PubMed, EMBase, Cochrane Library, EconLIT, CINAHL, CRD, LILACS, Global Health, Global Dissertations and Theses, SciELO, Web of Science databases, countries' ministries of health, and the IHME's Global Burden of Disease databases. Studies published in the last 10 years (20 years for economic studies) were included if conducted in any LAC country, without language restrictions. The main outcome measures were incidence/prevalence, proportion of co-infections, case fatality rates, specific mortality/hospitalisation rates, direct/indirect costs, and impact of gonorrhoea on quality of life. To assess evidence quality, we used a checklist developed by the US National Heart, Lung, and Blood Institute for observational studies and trial control arms, the Cochrane Effective Practice Organization of Care Group tool for randomised controlled trials, and the CICERO checklist for economic studies.

RESULTS

We identified 1290 articles; 115 included epidemiological studies and one included an economic study. Ministry of health data from Argentina, Brazil, Chile, Colombia, Mexico, and Uruguay were identified. Gonorrhoea prevalence was 1.46% (95% confidence interval [CI] 1.00-2.00%) from 48 studies and 5.68% (95% CI 4.23-7.32%) from 58 studies for non-high-risk and high-risk populations, respectively. Cumulative incidence for the high-risk population was 2.05 cases per 100 persons/year. Few published studies were rated as "good" in the risk of bias assessments. Variations in the methodology of the sources and limited information found in the countries' surveillance systems hinder the comparison of data.

CONCLUSION

The burden of gonorrhoea in LAC is not negligible. Our results provide public health and clinical decision support to assess potential interventions to prevent gonorrhoea.

TRIAL REGISTRATION

The protocol is registered on PROSPERO (CRD42021253342). The study was funded by GlaxoSmithKline Biologicals SA (GSK study identifier VEO-000025).

Correlates of prevalent syphilis infection among men who have sex with men (MSM) living with HIV attending the HIV clinic in Trinidad

Background

Syphilis among men who have sex with men (MSM) living with HIV is of public health concern, thus the objective of the study is to determine the correlates of prevalent syphilis infection in this population so that urgent interventions could be instituted.

Methods

A cross-sectional study was conducted during the period September 2020-June 2021 among MSM who attended a large HIV Clinic in Trinidad. A questionnaire was administered to obtain socio-demographic data and correlates of prevalent syphilis and patients were screened for syphilis using the traditional algorithm. Descriptive and bivariate analyses were conducted and multivariable logistic regression factors was used to assess factors significantly associated with a syphilis diagnosis.

Results

Two hundred and sixty four MSM were enrolled; age range 18–64 years, median age 33 years and 89 (34.4%) were actively bisexual. The prevalence of syphilis was 28% (74/264) and 89.2% (66/74) of these infections were asymptomatic. Multivariable logistic regression analysis showed that those patients who participated in sex with anonymous partners (OR 2.09; 95% CI, 1.03–4.26), those with a previous diagnosis of syphilis (OR 5.16; 95% CI, 1.03–25.83) and those who used marijuana in the last 12 months (OR 2.13; 95% CI, 1.14–3.96) were more likely to be diagnosed with syphilis.

Conclusion

There is a high prevalence of asymptomatic syphilis among MSM living with HIV in Trinidad. Repeat episodes of syphilis and anonymous sex may play a role in the transmission dynamics of T pallidum infection in this population, thus urgent public health prevention interventions are warranted.

Syphilis among men who have sex with men attending a large HIV clinic in Trinidad

A chart review study was conducted to determine the prevalence of syphilis and explore the associated risk factors among men who have sex with men (MSM) who attended a large HIV clinic in Trinidad during the period January-December 2019. Patients were routinely screened for syphilis annually, and demographic, clinical, and laboratory data were extracted from the medical records. Descriptive and bivariate analyses were performed, and factors significantly associated with a syphilis diagnosis were assessed using multivariate logistic regression. During the period, 218 MSM were seen, age range 19-67 years, and median age 34.0 years. The prevalence of syphilis was 41.3% (90/218), and 71.1% (64//90) of these infections were asymptomatic. Multivariate analysis using logistic regression showed that MSM living with HIV in the 30-34 years old-age group (OR, 4.32; 95% CI, 1.04-18.02), and those with a previous history of treated syphilis (OR, 10.18; 95% CI, 4.60-22.53) were more likely to be diagnosed with syphilis. The prevalence of syphilis is high among MSM attending the HIV clinic in Trinidad, and most of these infections were asymptomatic; hence, targeted and sustained interventions to reduce syphilis transmission are urgently required. Repeat episodes of syphilis may play a role in the transmission dynamics of syphilis in MSM.

A Chart Review Study of Sexually Transmitted Infections Among Persons Living with HIV Attending an STI Clinic in Trinidad

A chart review study of the sexually transmitted infection (STI) prevalence among persons living with HIV (PLHIV) was conducted among STI clinic attendees in Trinidad between January 2012 and December 2012. Data were abstracted from client records to obtain the clinical and the laboratory diagnoses of STIs. Descriptive and bivariate analyses were conducted, and factors significantly associated with the presence of a STI were assessed using multiple logistic regression. During this period, 385 PLHIV were seen; 104 (27.0%) were newly HIV diagnosed and 281 (73.0%) had a known history of HIV infection; 135 (35.1%) were diagnosed with a STI. Patients with known HIV infection were more likely to be diagnosed with a STI than those who were newly diagnosed (odds ratios: 6.99; 95% confidence interval: 3.79-12.89). The STI prevalence was high among PLHIV in Trinidad, identifying them as a critical target group for public health interventions to prevent the spread of HIV and STIs.