Introduction 

The effectiveness of Video Observed Therapy (VOT) for treating Tuberculosis (TB) has not been measured in low and middle-income countries (LMICs), where more than 95% of TB cases and deaths occur. In this study, we analyse the effectiveness, and patient cost-difference, of VOT compared to clinic-based Directly Observed Therapy (DOT) in improving medication adherence in Moldova, a LMIC in Eastern Europe.