Fig. 2

Boxplot of the modified Rankin Scale (mRS) score (0–3) assessed with a structured interview compared to RAND-36 physical component summary (PCS) score and mental component summary (MCS)

Note: the thick horizontal bar in the boxes represents the median for each mRS level. The ends of the boxes represent the first and third quartiles. The vertical line represents the minimum and maximum score (value inside 1.5 × interquartile range (IQR)). The open dots represent outliers (outside 1.5 IQR) and the asterisks represent extreme values (outside 3 IQR). Higher mRS scores indicate a worse disability, while higher scores on RAND-36 indicate better function. The RAND-36 scores can range from 0 to 100