Objective To study the risk and protective factors of mother-to-child transmission of HIV,in order to provide a reference for further completing the interventions. Methods A retrospective case-control study was applied to survey and analyze its possible risk factors with conditional logistic regression model,43 in the case and 86 in the control. Results Comparative of different interventions for MTCT showed that the pregnant who followed standardized ARV regimen had lower transmissions rate than those who f...