Journal of the International AIDS Society

Understanding effective post‐test linkage strategies for HIV prevention and care: a scoping review

AbstractIntroductionFollowing HIV testing services (HTS), the World Health Organization recommends prompt linkage to prevention and treatment. Scale‐up of effective linkage strategies is essential to achieving the global 95‐95‐95 goals for maintaining low HIV incidence by 2030 and reducing HIV‐related morbidity and mortality. Whereas linkage to care including same‐day antiretroviral therapy (ART) initiation for all people with HIV is now routinely implemented in testing programmes, linkage to HIV prevention interventions including behavioural or biomedical strategies, for HIV‐negative individuals remains sub‐optimal. This review aims to evaluate effective post‐HTS linkage strategies for HIV overall, and highlight gaps specifically in linkage to prevention.MethodsUsing the five‐step Arksey and O'Malley framework, we conducted a scoping review searching existing published and grey literature. We searched PubMed, Cochrane Library, CINAHL, Web of Science and EMBASE databases for English‐language studies published between 1 January 2010 and 30 November 2023. Linkage interventions included as streamlined interventions—involving same‐day HIV testing, ART initiation and point‐of‐care CD4 cell count/viral load, case management—involving linkage coordinators developing personalized HIV care and risk reduction plans, incentives—financial and non‐financial, partner services—including contact tracing, virtual—like social media, quality improvement—like use of score cards, and peer‐based interventions. Outcomes of interest were linkage to any form of HIV prevention and/or care including ART initiation.ResultsOf 2358 articles screened, 66 research studies met the inclusion criteria. Only nine linkage to prevention studies were identified (n = 9/66, 14%)—involving pre‐exposure prophylaxis, voluntary medical male circumcision, sexually transmitted infection and cervical cancer screening. Linkage to care studies (n = 57/66, 86%) focused on streamlined interventions in the general population and on case management among key populations.DiscussionDespite a wide range of HIV prevention interventions available, there was a dearth of literature on HIV prevention programmes and on the use of messaging on treatment as prevention strategy. Linkage to care studies were comparatively numerous except those evaluating virtual interventions, incentives and quality improvement.ConclusionsThe findings give insights into linkage strategies but more understanding of how to provide these effectively for maximum prevention impact is needed.

Lifetime prevalence and adherence rate of cervical cancer screening among women living with HIV: a systematic review and meta‐analysis

AbstractIntroductionWomen living with HIV (WLWH) are more likely to develop cervical cancer. Screening and available healthcare can effectively reduce its incidence and mortality rates. We aimed to summarize the lifetime prevalence and adherence rate of cervical cancer screening among WLWH across low‐ and middle‐income countries (LMICs), and high‐income countries (HICs).MethodsWe systematically searched PubMed, Web of Science and Embase for studies published between database inception and 2 September 2022, without language or geographical restrictions. Those reporting the lifetime prevalence and/or adherence rate of cervical cancer screening among WLWH were included. Pooled estimates across LMICs and HICs were obtained using DerSimonian–Laird random‐effects models. When the number of eligible studies was greater than 10, we further conducted stratified analyses by the World Health Organization (WHO) region, setting (rural vs. urban), investigation year, screening method, type of cervical cancer screening programme, age and education level.ResultsAmong the 63 included articles, 26 provided data on lifetime prevalence, 24 on adherence rate and 13 on both. The pooled lifetime prevalence in LMICs was 30.2% (95% confidence interval [CI]: 21.0–41.3), compared to 92.4% in HICs (95% CI: 89.6–94.6). The pooled adherence rate was 20.1% in LMICs (95% CI: 16.4–24.3) and 59.5% in HICs (95% CI: 51.2–67.2).DiscussionThere was a large gap in cervical cancer screening among WLWH between LMICs and HICs. Further analysis found that those in LMICs had higher lifetime prevalence in subgroups with urban settings, with older age and with higher education levels; and those in HICs had higher adherence in subgroups with younger age and with higher education levels.ConclusionsCervical cancer screening among WLWH falls considerably short of the WHO's goal. There should be continuous efforts to further increase screening among these women, especially those residing in the rural areas of LMICs and with lower education levels.

Incidence and outcomes of anal and cervical cancer among adults with HIV in Latin America: a retrospective cohort study

Abstract Introduction Human papillomavirus (HPV)‐associated cervical and anal cancers disproportionately affect people with HIV (PWH). This study aimed to determine the incidence trends of and risk factors for these malignancies in PWH in Latin America. Methods We included PWH from the Caribbean, Central and South America network for HIV epidemiology (CCASAnet) who contributed person‐time between 2000 and 2019. We calculated crude and age‐standardized incidence rates, examining trends over time with Poisson regression. Adjusted hazard ratios were calculated using Cox proportional hazard models with propensity score adjustment. We calculated the probability of survival after cancer diagnosis using Kaplan−Meier curves. To understand factors that influence our results, we surveyed all adult CCASAnet sites on current practices of cervical and anal cancer screening. Results Overall, 5739 females with HIV (43,417 person‐years) were included in cervical cancer analyses. There were 27 incident cervical cancers: crude incidence rate of 62.2 (95% confidence interval [CI]: 34.9−89.4) per 100,000 person years. In the anal cancer analysis, 12,489 males who have sex with men (MSM), 7324 males other than MSM and 5739 females were included for a total of 25,552 PWH, contributing 157,166 person‐years. Anal cancer was diagnosed in 56 individuals: crude incidence rates of 59.1 [95% CI: 33.2−85.0], 20.7 [95% CI: 11.6−29.7] and 15.2 [95% CI: 8.6−21.9] per 100,000 person‐years in MSM, females and males other than MSM, respectively. Age‐standardized incidence rates did not significantly change over time. Anal cancer risk decreased significantly with higher time‐updated CD4 cell count. The predicted probability of 5‐year survival after cancer diagnosis was 72.6% (95% CI: 48.4−86.8) for cervical cancer and 58.5% (95% CI: 44.0−70.5) for anal cancer. Conclusions In one of the few reports outside the United States or Europe, we did not observe a decrease in age‐standardized incidence rates for anal and cervical cancer between 2000 and 2019. These data support continued efforts for cancer prevention through access to gender‐neutral HPV vaccination and cancer screening.

Cervical cancer prevention and care in HIV clinics across sub‐Saharan Africa: results of a facility‐based survey

AbstractINTRODUCTIONTo eliminate cervical cancer (CC), access to and quality of prevention and care services must be monitored, particularly for women living with HIV (WLHIV). We assessed implementation practices in HIV clinics across sub‐Saharan Africa (SSA) to identify gaps in the care cascade and used aggregated patient data to populate cascades for WLHIV attending HIV clinics.METHODSOur facility‐based survey was administered between November 2020 and July 2021 in 30 HIV clinics across SSA that participate in the International epidemiology Databases to Evaluate AIDS (IeDEA) consortium. We performed a qualitative site‐level assessment of CC prevention and care services and analysed data from routine care of WLHIV in SSA.RESULTSHuman papillomavirus (HPV) vaccination was offered in 33% of sites. Referral for CC diagnosis (42%) and treatment (70%) was common, but not free at about 50% of sites. Most sites had electronic health information systems (90%), but data to inform indicators to monitor global targets for CC elimination in WLHIV were not routinely collected in these sites. Data were collected routinely in only 36% of sites that offered HPV vaccination, 33% of sites that offered cervical screening and 20% of sites that offered pre‐cancer and CC treatment.CONCLUSIONSThough CC prevention and care services have long been available in some HIV clinics across SSA, patient and programme monitoring need to be improved. Countries should consider leveraging their existing health information systems and use monitoring tools provided by the World Health Organization to improve CC prevention programmes and access, and to track their progress towards the goal of eliminating CC.

Modelling cervical cancer elimination using single‐visit screening and treatment strategies in the context of high HIV prevalence: estimates for KwaZulu‐Natal, South Africa

AbstractIntroductionIn settings with high HIV prevalence, cervical cancer incidence rates are up to six‐fold higher than the global average of 13.1 cases per 100,000 women‐years. To inform strategies for global cervical cancer elimination, we used a dynamic transmission model to evaluate scalable screening and treatment strategies, accounting for HIV‐associated cancer risks and weighing prevention gains against overtreatment.MethodsWe developed a dynamic model of HIV‐HPV co‐infection and disease progression, which we calibrated to KwaZulu‐Natal, South Africa. Our baseline scenario reflects the current practice of HPV vaccination with a multi‐visit screening and treatment strategy involving cytology and colposcopy triage. We evaluated 13 comparator scenarios with increased vaccination coverage and one‐time, two‐time or repeat HIV‐targeted cervical cancer screening with the following single‐visit strategies: HPV DNA testing, HPV genotyping, automated visual evaluation (AVE) and HPV DNA with AVE triage. In all scenarios, HIV antiretroviral therapy, condom use and voluntary male medical circumcision continue at baseline levels. We simulated cancer incidence under each scenario from 2020 to 2120 using the 25 best‐fitting parameter sets. We present the median and range of model output from these simulations to account for parameter uncertainty.ResultsWe estimate that cervical cancer incidence will decrease by 87% with the continuation of current cervical cancer and HIV prevention strategies, from an age‐standardized rate per 100,000 women of 80.4 (range 58.2, 112.1) in 2020 to 10.7 (4.2, 29.9) in 2120. Scenarios scaling up vaccination and single‐visit strategies resulted in near‐ and long‐term gains. With repeat HIV‐targeted screening, incidence rates were projected to be 29–34% lower in 2030 relative to the baseline scenario, and elimination (incidence <4/100,000) was achieved with HPV DNA testing in 2095 and with AVE in 2114. A strategy of HPV DNA with AVE triage optimized the tradeoff between cancer cases averted and overtreatment.ConclusionsSingle‐visit screening strategies could avert a substantial burden of cervical cancer and accelerate progress towards elimination in settings with a high burden of HIV. Increasing the screening frequency among women with HIV and reducing loss‐to‐follow‐up for treatment will be key components of a successful elimination strategy.