title: Trends in risky sexual behavior among men who have sex with men : analysis of repeated cross-sectional survey data from Ukraine, 2007-2013
abstract: Objective: To examine changes in risky sexual behavior over time, i.e., unprotected anal intercourse (UAI) among men who have sex with men (MSM) in Ukraine.Design: Secondary analysis of repeated bi-annual cross-sectional behavioral surveillance data from 2007 to 2013. Methods:Participants for this analysis (N=8,261) were enrolled in one of 8 cities that were included in all survey years.The same variables were extracted for each survey year to ensure uniformity.This study describes changes in so