ArticlePLOS global public health2026
Intensive longitudinal follow-up of cisgender and transgender women engaged in sex work during the three months following initiation of daily oral PrEP: A series of case-studies with mixed-method assessments.
Article in PLOS global public health, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
12 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Pre-exposure prophylaxis (PrEP) usage among cisgender and transgender women sex workers in Europe is low. This mixed-methods study examined the daily experiences of woman sex workers using PrEP, with emphasis on understanding the dynamic process of initiating and sustaining PrEP adherence. We employed an intensive longitudinal design with daily assessments of self-reported use of daily oral PrEP, side-effects, condom use, and number of clients over a 3-month period, followed by in-depth exit qualitative interviews that also explored PrEP initiation, communication with sex workers and clients, and stigma. Convenience sampling was used to enroll 15 sex workers (12 transgender and 3 cisgender women) presenting to a PrEP clinic in Madrid between November 2022 and January 2023, all from Latin America. We collected 1266 daily survey responses and 13 interviews. Quantitative results showed that average PrEP adherence was above 70%, with missed doses being randomly distributed, and that condom use and number of clients did not significantly change during the study period. Qualitative results showed that the main reason to start PrEP was concern about condom rupture and/or removal by clients. Facilitators of PrEP adherence included personal motivation, creation of daily routines, and use of personal alarms. Barriers to PrEP adherence included side effects from PrEP and its coingestion with other substances, and changes in daily routine related to work, and travel. Strict prescription protocols represented an additional layer of difficulty. Secondary gains included a feeling of empowerment and the opportunity to opt for condom substitution for economic benefit, personal pleasure, or the desire to foster a trusting relationship with long-standing clients. This involved few selected encounters and did not impact overall number of clients. PrEP communication was limited by PrEP and HIV stigma. We found a complex interplay of individual, occupational, and structural factors shaping early PrEP adherence among participants.
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.