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Table 4 Multiple linear regression results evaluating the effects of clinically meaningful weight loss and gain on the outcomes after TKA surgery

From: Weight changes after total knee arthroplasty in Chinese patients: a matched cohort study regarding predictors and outcomes

Parameters Weight loss (n = 42)¥ p value Weight gain (n = 15) ¥ p value
WOMAC total score 11.50 ± 2.85 < 0.001* 17.47 ± 1.81 < 0.001*
WOMAC pain score 1.40 ± 0.63 0.001* 2.07 ± 0.80 0.120
WOMAC function score 9.45 ± 2.60 0.002* 13.53 ± 2.17 < 0.001*
WOMAC stiffness score 0.64 ± 0.66 0.015* 1.87 ± 0.92 < 0.001*
SF-36 PCS score 49.38 ± 2.02 < 0.001* 42.4 ± 3.14 0.001*
SF-36 MCS score 50.83 ± 8.19 0.025* 43.80 ± 3.19 0.003*
  1. ¥Values are given as mean and standard deviation
  2. *Significant difference