Partially Hidden Markov Model for Time-Varying Principal Stratification in HIV Prevention Trials
HIV预防试验中时变主分层的部分隐马尔可夫模型
It is frequently of interest to estimate the intervention effect that adjusts for post-randomization variables in clinical trials. In the recently completed HPTN 035 trial, there is differential condom use between the three microbicide gel arms and the No Gel control arm, so that intention to treat (ITT) analyses only assess the net treatment effect that includes the indirect treatment effect mediated through differential condom use. Various statistical methods in causal…