Additional file 1: Figure S1. of Concordance of chlamydia infections of the rectum and urethra in same-sex male partnerships: a cross-sectional analysis

Selection of cases. Table S1a. Urethral chlamydia in couples, after excluding couples with rectal chlamydia. Every MSM included as a “partner 1” and as a “partner 2”. Table S1b. Rectal chlamydia in couples, after excluding couples with urethral chlamydia. Every MSM included as a “partner 1” and as a “partner 2”. Table S2. Chlamydia positivity by site. Men who tested for rectal chlamydia, and their corresponding partner’s urethral chlamydia result. Symptomatic urethritis cases excluded. “Partner 2” includes only men did not have insertive penile-anal sex without condoms with casual and regular partners in the three months before testing. (DOCX 30 kb