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Table 5 Interpretability of Italian HOOS. Skewness and kurtosis values, and floor and ceiling effects, before (Pre) and after (Post) THA, n = 79

From: Cross-cultural adaptation and validation of the Italian version of the Hip disability and Osteoarthritis Outcome Score (HOOS)

  Skewness Kurtosis Floor effect (%) Ceiling effect (%)
HOOS subscale Pre Post Pre Post Pre Post Pre Post
Symptoms 0.44 −0.81 0.75 −0.22 0.00 0.00 0.00 27.85
Pain 0.70 −1.75 0.86 2.85 0.00 0.00 0.00 29.11
ADL 1.03 −1.17 1.82 0.56 0.00 0.00 0.00 15.19
Sport/Rec 1.18 −0.69 1.65 −0.21 26.92 0.00 0.00 28.21
QoL 0.74 −0.83 0.34 −0.65 22.78 0.00 0.00 40.51
  1. ADL Activity of Daily Living, Sport/Rec Sports and Recreational activities, QoL Quality of Life