Bivariate and multivariate analysis for heterosexual anal sex: (logistic regression model using global weights).

*OR-Odds Ratio; AOR-Adjusted Odds Ratio (Adjusted for literacy and years at sex work).#Denominators will change as per the distribution of missing data/non-responses for anal sex in categories. Percentages are calculated taking the appropriate denominator.*OR-比值比（Odds Ratio）；AOR-调整后比值比（Adjusted Odds Ratio，已校正识字水平与性工作从业年限）。#分母将根据各类别中肛交行为相关的缺失数据与无应答分布发生变化，百分比计算需采用对应的合适分母。