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Table 9 Percentage ceiling/floor effects of the KOOS (best possible score/worst possible score)

From: The Dutch version of the knee injury and osteoarthritis outcome score: A validation study

 

Pain

Symptoms

ADL

Sport/Recreation

QoL

Mild OA (n = 36)

28/ 0

22/ 0

42/ 0

14/0

11/0

Moderate OA (n = 62)

13/2

3/0

8/0

10/11

5/2

Severe OA (n = 47)

0/2

0/2

0/0

20/38

0/15

TKA (n = 63)

10/0

3/0

7/0

0/7

6/3

Revision of TKA (n = 54)

2/0

4/0

2/0

6/38

4/4

  1. Abbreviations: OA; osteoarthritis, Revision of TKA, Revision of total knee arthroplasty; ADL, Activities of daily living; QoL, Quality of life.