Fig. 4

The OSDI scores of the mSLs group and the RGP group. Lower Edge of the Box (Q1): The first quartile (25th percentile). Line Inside the Box (Q2): The median (50th percentile). Upper Edge of the Box (Q3): The third quartile (75th percentile). Lower Whisker End: The minimum data value within the range (Q1–1.5 * IQR). Upper Whisker End: The maximum data value within the range (Q3 + 1.5 * IQR). ns: not significant. **: very significant differences; ***: extremely significant differences.