Table 2

Pre-operative characteristics of joint replacement patients

Patient characteristic

Hip replacement

Knee replacement

NHS (N = 291)

ISTC (N = 184)

NHS (N = 323)

ISTC (N = 187)


Mean (SD)

Mean (SD)

Mean (SD)

Mean (SD)


Age (years)

66.2 (14.6)

66.8 (14.1)

66.2 (16.5)

66.7 (12.2)

Duration symptoms (years)

3.9 (5.4)

3.7 (3.9)

8.1 (10.1)

8.6 (9.3)

Deprivation score

22.4 (16.8)

20.3 (13.3)

25.2 (17.4)

19.0 (12.6)

EQ-5D score

0.31 (0.31)

0.35 (0.32)

0.36 (0.32)

0.45 (0.30)

Disease-specific score

44.0 (7.7)

42.1 (8.4)

42.3 (7.5)

39.8 (8.0)


N (%)

N (%)

N (%)

N (%)


Female

157 (54.1)

108 (58.7)

167 (52.0)

96 (51.6)

Any comorbidity

251 (86.2)

148 (80.4)

280 (86.7)

151 (80.7)

Previous similar surgery

79 (27.3)

34 (18.6)

168 (53.3)

78 (42.6)

Poor or fair health

62 (21.5)

27 (14.9)

68 (21.7)

21 (11.5)


Browne et al. BMC Health Services Research 2008 8:78   doi:10.1186/1472-6963-8-78

Open Data