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Table 2 Paired t test on BMI and KOOS pre- and post-op

From: Bariatric surgery improves knee function and not knee pain in the early postoperative period

 

Pre-op (mean, SD)

Post-op (mean, SD)

p value (95% CI)

BMI

42.8 (5.7)

34.4 (5.3)

< 0.01

KOOS (total score)

66.0 (19.9)

89.3 (8.91)

< 0.01

Knee stiffness

50.2 (18.4)

52.0 (19.1)

0.694

Knee pain

70.3 (24.38)

79.9 (25.9)

0.147

Daily function

67.2 (26.51)

78.5 (28.9)

0.167

Sports function

54.3 (23.41)

77.0 (20.2)

< 0.01

QOL related to knee

60.2 (27.68)

80.3 (21.9)

0.004

  1. Pre-op preoperative, Post-op postoperative, BMI body mass index, KOOS knee osteoarthritis outcomes score, QOL quality of life