Table 5 Multivariable analysis of post-operative (12 months) changes in TKA WOMAC domains

Gender

 Male vs Female

0.02

0.84, 0.88

0.2

1.30

−1.68, 4.28

0.4

−0.15

−0.52, 0.23

0.4

Age

  < 65 vs ≥65

−0.48

1.28, 0.31

0.9

−2.47

−5.23, 0.28

0.07

−0.18

−0.53, 0.17

0.3

BMI

  < 30 vs ≥30

−0.15

0.85, 0.54

0.6

−0.97

−3.41, 1.46

0.4

−0.06

−0.37, 0.24

0.4

Education

 Low^c vs High

−0.72

1.69, 0.44

0.06

−3.08

−6.76, 0.59

0.09

−0.16

−0.70, 0.28

0.8

Social Support

 Yes vs No

−0.86

1.82, 0.09

0.07

−2.24

−5.55, 1.06

0.1

−0.17

−0.59, 0.25

0.4

Residence

 Rural vs Urban/semi

−0.52

1.10, 0.42

0.05

−2.25

−4.87, 0.38

0.09

−0.15

−0.59, 0.22

0.06

 Pre-intervention Pain

0.10

2.29, 0.02

0.02

-

-

-

-

-

-

 Pre-intervention Function

-

-

-

0.17

0.06, 0.28

0.002

-

-

-

 Pre-intervention Stiffness

-

-

-

-

-

-

0.07

−0.02, 0.17

0.1