Fig. 2From: Interpreting small treatment differences from quality of life data in cancer trials: an alternative measure of treatment benefit and effect size for the EORTC-QLQ-C30Cumulative Frequency Plot of Effect Sizes for MDs and ORs. Horizontal reference lines are MDs effect sizes of 3, 10 and 15 points; circles refer to ORs and squares refer to MDsBack to article page