Fig. 3From: Methods for handling missing data in serially sampled sputum specimens for mycobacterial culture conversion calculationForest plot showing hazard ratios for smear negative participants. Hazard ratios and 95% confidence intervals for negative smear with positive smear as the referent are shown for unadjusted estimates (circle) and adjusted estimates (square). Available case analysis, ACA; last observation carried forward, LOCF; multiple imputation by fully conditional specification, MIBack to article page