Table 1 Baseline background and clinical characteristics of the study sample (n = 43)

Age mean (sd)

72.66 (7.04)

73.00 (6.31)

72.80 (6.68)

71.62 (7.75)

73.86 (8.53)

0.839^a

Gender

 Male

2

2

0

0

0

0.125^b

 Female

41

9

10

13

9

Number of years with OA knee mean (sd)

7.82 (7.07)

4.95 (4.16)

8.20 (8.13)

9.77 (8.44)

8.14 (8.26)

0.468^a

Side(s) of OA knee

 Unilateral

4

1

2

0

1

0.429^b

 Bilateral

39

10

8

13

8

Comorbid illness

 Yes

39

11

8

11

9

0.307^b

 No

4

0

2

2

0