a4 cities include Harbin, Beijing, Zhengzhou, Chengdu;bThis study is different from Zheng JD, 2008;c9 cities include Harbin, Shenyang, Xi’an, Zhengzhou, Nanjing, Shanghai, Wuhan, Chongqing, Chengdu.
Model 1: the independent variable is perceived discrimination toward MSM. Model 2: the independent variable is perceived empathy of service providers. Model 3: the independent variables are both perce