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Table 3 Physical function tests, Western Ontario and McMaster Osteoarthritis Index (WOMAC), Short Form-36 (SF-36), geriatric depression scale (GDS), and knee pain visual analogue scale (VAS) scores of the study groups

From: Neuropathic pain in knee osteoarthritis

 

Group 1

Group 2

pF

pM

pG

Female (n = 81)

Male (n = 17)

Total (n = 98)

Female (n = 76)

Male (n = 26)

Total (n = 102)

Physical function tests*

         

 Chair-stand /30 s

11 (2–16)

12 (6–14)

11 (2–16)

12 (5–22)

14 (8–19)

12 (5–22)

0.002

0.001

< 0.001

 Stair climbing, second

         

  Upwards

2.8 (1.6–21.7)

2.4 (1.4–4.7)

2.7 (1.4–21.7)

2.3 (1.2–9.4)

2 (1.4–3.8)

2.2 (1.2–9.4)

0.003

0.160

< 0.001

  Downwards

3 (1.5–15.2)

2.5 (1.4–5.1)

3 (1.4–12.5)

2.3 (1.3–8.5)

2 (1.4–4.3)

2.3 (1.3–8.5)

< 0.001

0.168

< 0.001

 6-min walk, meter

360 (70–510)

425 (240–600)

360 (70–600)

420 (108–600)

420 (280–620)

430 (108–620)

< 0.001

0.149

< 0.001

WOMAC score*

         

 Pain

10 (3–19)

8 (2–16)

10 (2–19)

7 (1–15)

4 (2–12)

6 (1–15)

< 0.001

0.008

0.002

 Stiffness

2 (0–7)

0 (0–6)

2 (0–7)

0 (0–4)

0 (0–4)

0 (0–4)

< 0.001

0.275

< 0.001

 Physical function

32 (12–59)

27 (7–55)

30 (7–59)

22.5 (1–46)

17 (5–38)

22 (1–46)

< 0.001

0.012

< 0.001

 Total

12.3 (3.9–26.9)

9.2 (2–23.5)

11.5 (2–26.9)

7.4 (1.2–17.2)

5.5 (2.1–15)

6.8 (1.2–17.2)

< 0.001

0.012

< 0.001

SF-36 score*

         

 Physical function

35 (5–100)

40 (15–80)

35 (5–100)

45 (5–85)

67.5 (20–95)

55 (5–95)

< 0.001

0.033

< 0.001

 Social function

50 (12.5–100)

75 (25–100)

50 (12.5–100)

62.5 (25–100)

81.2 (25–100)

75 (25–100)

< 0.001

0.036

< 0.001

 Physical role limitation

0 (0–100)

0 (0–100)

0 (0–100)

100 (0–100)

100 (0–100)

100 (0–100)

< 0.001

0.068

< 0.001

 Emotional role limitation

0 (0–100)

100 (0–100)

100 (0–100)

100 (0–100)

100 (0–100)

100 (0–100)

< 0.001

0.348

< 0.001

 Bodily pain

35 (0–70)

47.5 (12.5–67)

35 (0–100)

56.2 (10–100)

57.5 (32.5–90)

57.5 (15–100)

< 0.001

0.010

< 0.001

 Mental health

64 (32–88)

68 (32–72)

64 (32–88)

72 (28–92)

64 (28–84)

72 (28–92)

< 0.001

1.000

0.001

 Vitality

35 (10–75)

50 (30–70)

40 (10–75)

50 (15–80)

55 (5–65)

50 (5–50)

< 0.001

0.571

< 0.001

 Health perception

35 (15–85)

50 (20–60)

40 (15–85)

50 (15–80)

55 (20–65)

55 (15–80)

< 0.001

0.025

< 0.001

GDS category, n (%)

      

< 0.001

N/T

< 0.001

 No depression

31 (38.2)

14 (82.4)

45 (45.9)

58 (76.3)

25(96.2)

83 (81.4)

   

 Possible depression

12 (14.9)

1 (5.8)

13 (13.3)

12 (15.8)

12 (11.8)

   

 Depression

38 (46.9)

2 (11.8)

40 (40.8)

6 (7.9)

1 (3.8)

7 (6.8)

   

Knee pain VAS score*

         

 At rest

4 (0–10)

2 (0–8)

3.5 (0–10)

2 (0–6)

0 (0–6)

2 (0–6)

< 0.001

0.040

< 0.001

 Walking

8 (2–10)

7 (4–10)

8 (2–10)

7 (4–10)

6 (3–10)

6.5 (3–10)

< 0.001

0.009

< 0.001

  1. P-value less than 0.05 (p < 0.05) is statistically significant
  2. pF; significance of difference between females in Group 1 and Group 2. pM; significance of difference between males in Group 1 and Group 2. pG; significance of difference between Group 1 and Group 2
  3. n number
  4. *Given as median (min–max)