Transmission chain in sexually transmitted infections: perceptions of self and partner's intentions to adhere to treatment.

The spread of sexually transmitted infections (STIs) is a significant public health problem. Screening and treating STIs in partners is crucial for interrupting the transmission chain, and it is essential to identify factors that contribute to maintaining it. The objective of this study was to compare the intentions of men and women to adhere to the treatment for STIs diagnosed in their partner as well as the perception of partner adherence. An observational, cross-sectional study was conducted using a self-administered structured questionnaire in Unified Health System (SUS) users who were treated at the Pedro Ernesto University Hospital between August 2023 and January 2024. Overall, 255 questionnaires were analyzed. Among the 42 participants who reported previous STIs, 21 percent maintained risky behavior in their current relationship. Attendance at the consultation in the case of a partner diagnosed with STI was high (90 percent women and 87 percent men); however, unconditional adherence to medication use was 63 percent in women and 55 percent in men, with the duration of medication use and its route of administration highlighted as the possible obstacles. Although no significant differences were observed between men and women, measures to increase adherence to STI treatment are necessary to interrupt STI transmission.