Table 4 The regression model of EQ-5D utility and EQ-VAS score

Mobility 2

-2.109

(-5.624,1.405)

Mobility 3

-4.947**

(-10.799,-0.904)

Mobility 4

-19.063**

(-35.275,-2.851)

Self-care 2

-9.737

(-17.717,-1.757)

Self-care 3

-1.764

(-16.071,12.542)

Usual activities 2

-0.706

(-6.112,4.7)

Usual activities 3

-3.178

(-13.107,6.751)

Usual activities 5

-20.767

(-43.086,1.553)

Pain/discomfort 2

-5.941***

(-7.765,-4.117)

Pain/discomfort 3

-13.028**

(-15.619,-10.437)

Pain/discomfort 4

-23.218**

(-31.143,-15.293)

Pain/discomfort 5

-16.872

(-41.223,7.479)

Anxiety/depression 2

-7.972**

(-10.13,-5.813)

Anxiety/depression 3

-11.259***

(-15.817,-6.7)

Anxiety/depression 4

-2.114

(-12.454,8.225)

Anxiety/depression 5

-61.259***

(-95.379,-27.138)

Female

1.406

(-0.651,3.463)

-0.056***

(-0.089,-0.023)

Age

-0.073

(-0.179,0.033)

-0.002

(-0.001,0.004)

Middle school

0.476

(-2.533,3.486)

0.016

(-0.032,0.064)

Senior school

1.964

(-1.058,4.985)

0.037

(-0.011,0.086)

Tertiary or above

2.434

(-1.051,5.92)

0.062**

(0.006,0.118)

Receive allowance

-3.522***

(-6.893,-0.151)

-0.113***

(-0.165,-0.061)

Unemployment

-2.623

(-8.192,2.945)

-0.090***

(-0.177,-0.004)

Full-time student

0.351

(-5.73,6.433)

-0.007

(-0.106,0.092)

Housewife

-2.473

(-5.815,0.87)

-0.048

(-0.101,0.005)

Full-time employment

0.231

(-2.626,3.088)

-0.028

(-0.075,0.019)

Part-time employment

3.795

(-3.184,10.774)

-0.085

(-0.195,0.025)

Live with family

-1.846

(-5.799,2.108)

0.009

(-0.055,0.072)

Live with others

12.74

(-4.608,30.088)

0.301

(-0.003,0.604)

Married

4.829***

(2.021,7.637)

0.032

(-0.013,0.077)

Divorced

1.918

(-3.666,7.501)

0.011

(-0.077,0.1)

Widow

5.969

(-0.471,12.409)

0.024

(-0.077,0.124)

No chronic disease

1.927

(-0.364,4.218)

0.005

(-0.032,0.042)

Have caregiver

0.335

(-4.151,4.821)

-0.082***

(-0.153,-0.011)

AIC

7890.885

8222.814

BIC

7979.297

8320.989

Adjusted R²

0.31

0.32