Figure 7.

Differences in the observed and estimated mean scores for an immortal cohort (with single imputation). The figure displays the differences in the observed and estimated mean scores between arm A and arm B for the arithmetic average of the observed score values (upper left panel), the IPW method (upper right panel) and the LI method (lower left panel) when considering an immortal cohort. Single imputation has been applied. The black solid-line curve corresponds to the estimated differences, the black dashed-line curves correspond to the upper and lower limits of the 95% percentile interval (based on 1000 bootstrap samples), and the black dotted-line curve corresponds to the zero line.