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Table 2 Baseline and 12-month 6MWT distances, overall and by quartile of baseline 6MWT distance

From: Minimal clinically important difference for improvement in six-minute walk test in persons with knee osteoarthritis after total knee arthroplasty

 

Overall (n = 278)

Quartile 1 (n = 70)

Quartile 2 (n = 69)

Quartile 3 (n = 70)

Quartile 4 (n = 69)

Quartile cut-offs (m)

< 255.08

255.08 to 336.26

336.26 to 391.67

> 391.67

Pre-TKA 6MWT (m) (SD)

323.09 (104.66)

185.29 (155.01)

296.85 (23.45)

363.68 (16.44)

447.97 (54.42)

12-month 6MWT (m) (SD)

395.96 (111.87)

301.33 (107.14)

383.94 (78.28)

421.05 (72.00)

478.53 (104.95)

Change 6MWT (m) (SD)

72.86 (90.98)

116.04 (108.90)

87.09 (78.18)

57.37 (70.46)

30.56 (79.69)

  1. 6MWT Six-minute walk test, TKA Total knee arthroplasty