Impact of social factors and sexual behaviors on the knowledge of sexually transmitted infections among women who have sex with women/women who have sex with women and men.

Although heterosexual individuals' knowledge of sexually transmitted infections (STIs) has been examined, no studies have been conducted in Poland of the STI knowledge in women who have sex with women (WSW) and women who have sex with women and men (WSWM). We enrolled a group of 146 WSW and 113 WSWM and asked them to complete a study questionnaire that contained items about socioeconomic factors, sexual behaviors, and STI knowledge. The level of STI knowledge among the studied WSW was insufficient. The frequency of correct answers was higher in WSWM. A multivariate regression model revealed that only the higher importance of sex to the respondents ( F(1) = 4.31, p = 0.04) and a higher number of same-sex sexual partners within the last 12 months ( F(1) = 14.86, p = 0.0001) influenced the level of STI knowledge. The results of the study allowed us to conclude that WSW have insufficient STI knowledge, whereas WSWM have better knowledge, and this is influenced by awareness that STI risk is not associated with the partner's gender, age, importance of sex, sexual behaviors, and openness to discussing STIs with a sexual partner.