Fig. 2From: Methods for handling missing data in serially sampled sputum specimens for mycobacterial culture conversion calculationKaplan-Meier curves of cumulative probability of culture conversion for smear negative and smear positive. Solid line is smear negative and dashed line is smear positive. Shaded regions represent 95% confidence intervals. Method for handling missing data: available case analysis A), last observation carried forward B), multiple imputation by fully conditional specification C)Back to article page