Feasibility, Acceptability, and Efficacy of a Community Health Worker-Driven Approach to Screen Hard-to-Reach Periurban Women Using Self-Sampled HPV Detection Test in India.

Abstract

Detection of high-risk human papillomavirus (HPV) in self-collected vaginal samples can significantly improve participation of hard-to-reach women; however, the implementation of such an approach in a real-life setting, especially in countries with limited resources, has certain challenges. Our study aimed to evaluate the feasibility, acceptability, and efficacy of implementing an HPV self-sampling-based approach to screen a socioeconomically disadvantaged, unscreened population with support from community health workers (CHWs) for community mobilization, counseling, and navigation. Different triaging options for HPV-positive women were also assessed. Women age 30 to 65 years from low socioeconomic periurban areas who had never been screened before were motivated by CHWs to attend local community centers and provide self-collected vaginal samples for <i>care</i>HPV testing. Screen-positive women were informed and navigated by CHWs to attend colposcopy clinics where cervical biopsy and same-day ablative treatment were offered. Women readily accepted to provide self-collected samples after counseling by CHWs. Screen positivity was 6.4%, and CHWs successfully navigated 65% of HPV-positive women to colposcopy. Cervical intraepithelial neoplasia (CIN) 2+ detection rate was 9.7 per 1,000 women screened. The HPV test had a positive predictive value of 15.3% to detect CIN 2+ lesions. Triage using visual inspection with acetic acid significantly improved the positive predictive value (49.5% to detect CIN 2+), but missed a significant number of CIN 2+ lesions. Colposcopy sensitivity was also suboptimal. Of 51 women with lesions, 80% underwent ablative treatment and the majority accepted same-day treatment. CHW-driven self-sampling for HPV testing is feasible, well-accepted, and effective for screening unscreened hard-to-reach women. The screen-and-treat approach can ensure strong linkage between screening and treatment.