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Table 3 Relative difference in functional measures between the case- and control-group within each ICF-dimension

From: Relative difference among 27 functional measures in patients with knee osteoarthritis: an exploratory cross-sectional case-control study

ICF

Variables

Cases

(n = 28)

Controls (n = 31)

ES or Med d

ES or Med d 95% CI

Stats

t, χ2, U, M

P

E Abs ES or C’s d

Body Function

Pain last wk., Med (IQR) (R)

3.5 (4.8)

0.0 (1.0)

3.0

3.0, 5.0

0.000 (U)

2.0E-12§

3.3

KOOS Pain, Med (IQR)

58.8 (18.8)

98.4 (3.6)

−38.9

−52.8, −30.6

5.0 (U)

1.8E-11§

3.2

KOOS Symptoms, Med (IQR)

58.9 (33.9)

98.4 (3.6)

−35.8

−42.9, −28.6

4.0 (U)

4.6E-11§

3.2

Pain-10StUpDw, Med (IQR) (R)

2.0 (3.0)

0.0 (3.0)

2.0

1.0, 3.0

108 (U)

1.7E-08§

1.7

Pain-30sCST, Med (IQR)

2.0 (5.0)

0.0 (0.1)

2.0

1.0, 4.0

124 (U)

2.4E-08§

1.6

Pain-6MWT, Med (IQR) (R)

3.5 (6.8)

0.0 (3.0)

2.0

0.0, 5.0

130 (U)

0.00061‡

1.5

Pain-TUG, Med (IQR)

0.1 (2.7)

0.0 (0.1)

0.2

0.0, 1.0

217 (U)

1.0E-5‡

0.9

Knee ext. strength inv. leg, M (SD)

1.16 (0.48)

1.46 (0.38)

−0.7

−0.2, −1.2

1.592 (t)

0.010*

0.7

30sTSLS inv. leg (s), Med (IQR)

11.0 (25.4)

29.8 (7.3)

−9.1

−21.1, 0.0

292 (U)

0.0291*

0.6

30sCST (n), M (SD)

14.0 (4.2)

16.3 (4.2)

−0.5

− 1.1, 0.0

−2.1 (t)

0.0422

0.5

Knee ext. stren., uninv. leg, M (SD)

1.45 (0.36)

1.64 (0.46)

−0.5

−1.0, 0.1

− 1.74 (t)

0.088

0.5

TSLS uninv leg (s), Med (IQR)

15.9 (23.5)

29.5 (16.0)

−5.4

−14.1, 0.0

329 (U)

0.1071

0.4

RPE-6MWT, M (SD)

6.0 (1.8)

5.5 (1.7)

0.3

−0.2, 0.8

1.1 (t)

0.2577

0.3

 

RPE-10StUpDwT, M (SD)

3.3 (1.7)

3.1 (1.3)

0.2

−0.3, 0.7

0.6 (t)

0.5368

0.2

 

RPE-30sCST, Med (IQR)

3.0 (3.0)

3.0 (2.0)

0.0

−1.0, 1.0

420 (U)

0.8266

0.1

Activity

KOOS Sport/Rec, Med (IQR)

30.0 (25.6)

100 (5.0)

−65.0

−75.0, −60.0

4.0 (U)

2.3E-11§

3.2

KOOS ADL, Med (IQR) (R)

67.7 (39.6)

100.0 (13.9)

−32.4

−38.2, −14.7

28.5 (U)

9.5E-11§

2.7

10StUpDwT (s), M (SD)

10.8 (3.1)

7.8 (1.1)

1.3

0.7, 1.9

5.0 (t)

3.6E-05‡

1.3

Timed Up-and-Go (s), M (SD)

6.6 (1.2)

5.7 (0.9)

0.9

0.3, 1.4

3.4 (t)

0.0014†

0.9

6MWT (m), M (SD)

642.5 (94.6)

717.4 (75.4)

−0.9

−1.4, −0.3

−3.4 (t)

0.0014†

0.9

Participation

KOOS QoL, Med (IQR) (R)

43.8 (25.0)

100.0 (25.0)

−56.2

−62.5, −43.8

1.0 (U)

9.8E-12§

3.3

Örebo PsySoc, M (SD)

39.0 (12.7)

12.8 (9.6)

2.3

1.7, 3.0

9.0 (t)

1.6E-12§

2.3

Vig.-int. act. (min/wk), Med (IQR)

1.0 (15.3)

29.0 (63.0)

−23.0

−46.0, −10

167.5 (U)

4.5E-05‡

1.2

EUROHIS-QoL, Med (IQR)

33.0 (4.4)

36.0 (6.0)

−3.0

−5.0, −1.0

274.5 (U)

0.015*

0.7

Mod.-int. act. (min/wk), M (SD)

286.0 (169.1)

382.5 (134.5)

−0.6

−1.2, −0.1

−2.4 (t)

0.018*

0.6

Light-int. act. M (SD)

1553.0 (444.9)

1494.9 (468.6)

0.1

−0.4, 0.6

0.5 (t)

0.63

0.1

Sed.-int. act. (min/wk); M (SD)

8141.9 (663.1)

8197.5 (662.9)

−0.1

−0.6, 0.4

−0.3 (t)

0.74

0.1

  1. Notes. Case = patients with knee osteoarthritis, control = individuals without knee complaints; ICF = = the International Classification of Function, Disability, and Health (of the WHO); ES = effect size by Cohen’s d or mean difference between groups divided by the variability of groups; Med d = median difference; CI = confidence interval; Stats = statistics; P = probability value; E = estimated; Abs = absolute value; ES = effect size or Cohen’s d; C’s d = Cohen’s d.; KOOS = Knee Injury and Osteoarthritis Outcome Scale; Med = median; IQR = interquartile range; R = range (given for the controls when the IQR was not obtainable); 10StUpDw = 10 step up-and-down stair climb test; 30sCST = number of Chair-to-Stand raises in 30 s test; 6MWT = test of distance walked in 6 minutes; TUG = Time up-and-go test or seconds taken to rise from a chair, walk 3 m, turn, walk back, and sit down; 30sTSLS inv. leg = 30 s timed single-leg standing on the involved leg; RPE = Rate of Perceived exertion on the Borg Category Rating Scale; Sports/Rec = sports and recreation scale; ADL = activity of daily life; QoL = Quality of Life; PsycSoc. = psychosocial questionnaire; Vig.-int. Act. = Vigorous-intensity physical activity of daily life; Mod. = moderate; Sed. = sedentary; * = significant result, † = highly significant result, ‡ = very highly significant result, § = extremely highly significant result