Table 2 Characteristics of participants

Sex female, n (%)

148 (68)

10 (48)

Age years (SD)

65.5 (10.8)

68.7 (10.3)

Signal joint knee n (%)

183 (84)

15 (71)

Body mass index kg/m²(SD)

30.3 (6.1)

30.0 (5.1)

PAM score mean (SD)^a

60.5 (11.0)

 PAM level 1 n (%)

10 (4.6)

 PAM level 2 n (%)

47 (21.7)

 PAM level 3 n (%)

123 (56.7)

 PAM level 4 n (%)

28 (12.9)

 Year 10 or equivalent n (%)

57 (26)

4 (19)

 Year 12 or equivalent n (%)

28 (13)

1 (5)

 Graduate degree n (%)

104 (48)

11 (52)

 Post graduate degree n (%)

22 (10)

1 (5)

 Missing n (%)

6 (3)

4 (19)

 Home duties n (%)

6 (3)

0

 Full time n (%)

56 (26)

3 (14)

 Part-Time n (%)

21 (10)

3 (14)

 Retired n (%)

100 (46)

8 (38)

 Volunteer n (%)

4 (2)

1 (5)

 Other n (%)

25 (12)

2 (10)

 Missing n (%)

5 (1)

4 (19)

Private hospital n (%)

160 (74)

21 (100)

Public hospital n (%)

57 (26)

0

Average pain in last week on VAS^b

n = 214

n = 17

VAS mean (SD)

4.0 (2.3)

3.4 (2.5)

KOOS^c

n = 179

n = 12

Pain mean (SD)

52.3 (17.7)

53.6 (14.1)

Function in daily living mean (SD)

58.0 (19.8)

59.3 (19.1)

HOOS^d

n = 32

n = 3

Pain mean (SD)

57.7 (19.2)

61.7 (16.7)

Function in daily living mean (SD)

59.5 (18.1)

48.3 (20.2)

DASS-21^e

n = 214

n = 16

Depression mean (SD)

7.2 (8.6)

5.2 (6.8)

Anxiety mean (SD)

5.1 (7.3)

3.8 (4.3)

Stress mean (SD)

8.8 (8.5)

7.5 (5.2)

AQoL^f

n = 198

n = 6

Independent living mean (SD)

68.4 (19.3)

68.5 (15.5)

Social relationships mean (SD)

75.4 (19.8)

86.7 (10.3)

Mental health mean (SD)

69.8 (21.9)

74.0 (11.6)

Coping mean (SD)

65.3 (20.3)

69.3 (8.8)

Pain mean (SD)

45.8 (22.3)

55.0 (18.7)

Physical senses mean (SD)

81.8 (10.9)

79.7 (6.5)

AQoL summed index mean (SD)

68.4 (14.9)

72.1 (8.6)