Rui Jorge Nobre

Targeting under-screened women in cervical cancer: combining self-sampling and human papillomavirus testing with a strategic reminder plan

Abstract Cervical cancer (CC) screening is essential for reducing its incidence, yet engaging under-screened women remains challenging. Self-sampling has emerged as a promising solution to enhance attendance; however, its integration into programmes has proven difficult. This study evaluated a multimodal approach combining self-sampling, human papillomavirus (HPV) testing, and personalized contact to reach women not attending conventional CC screening. To achieve this, 801 women aged 30–59 who had not participated in Portugal’s Central Region CC screening programme for more than 4 years were selected based on specific criteria. Of these, 114 women were excluded for not meeting eligibility criteria, resulting in 687 eligible participants. Using an ‘opt-in’ approach, women who consented to participate received cervicovaginal self-sampling kits at home. Multiple contact strategies, including phone calls and reminder letters, were employed to encourage participation. Women testing positive for high-risk HPV (hr-HPV) were referred for gynaecological follow-up. Of the eligible women, 307 (44.7%) consented to participate and 198 (28.8%) provided valid samples for hr-HPV testing. Approximately 60.0% of participants were enrolled after the first reminder phone call, while additional contact strategies accounted for one-third of submitted samples. Among 12 hr-HPV positive cases, 11 completed gynaecological follow-up, resulting in the identification of six cervical lesions. This study confirms the feasibility and effectiveness of combining self-sampling, HPV testing, and personalized contact strategies to improve CC screening uptake among under-screened women. The findings highlight the potential of such interventions to address participation gaps and enhance early detection of cervical lesions, ultimately reducing CC incidence.