Table 2 Logistic regression analysis examining the association between disability and QOL (N =3336)

Gender

Male

(reference)

(reference)

Female

0.517

0.090

32.749

1.677(1.405,2.002)***

0.080

0.116

0.476

1.083(0.863,1.360)

Age

60-69

(reference)

(reference)

70-79

0.386

0.095

16.649

1.471(1.222,1.771)***

-0.092

0.114

0.650

0.912(0.730,1.140)

≥80

1.362

0.186

53.849

3.905(2.714,5.618)***

0.288

0.222

1.684

1.333(0.863,2.059)

Education level

Illiterate

(reference)

(reference)

Primary and above

-0.457

0.091

25.169

0.633(0.530,0.757)***

-0.110

0.117

0.897

0.895(0.712,1.125)

Living style

Living alone

(reference)

(reference)

Living with spouse

-0.311

0.128

5.864

0.733(0.570,0.942)*

-0.003

0.157

0.000

0.997(0.733,1.355)

Other

-0.355

0.131

7.404

0.701(0.543,0.905)**

-0.026

0.165

0.025

0.974(0.705,1.345)

Region

Northern

(reference)

(reference)

Central

-0.485

0.112

18.596

0.616(0.494,0.768)***

-0.376

0.143

6.871

0.687(0.519,0.910)**

Southern

-0.801

0.107

55.976

0.449(0.364,0.554)***

-0.496

0.134

13.760

0.609(0.469,0.791)***

Poverty

Yes

(reference)

(reference)

No

-0.651

-0.101

41.660

0.521(0.428,0.635)***

-0.276

0.127

4.714

0.758(0.591,0.973)*

Physical discomfort(Within two weeks)

Yes

(reference)

(reference)

No

-1.189

0.092

168.056

0.304(0.254,0.364)***

-0.557

0.110

25.617

0.573(0.462,0.711)***

Hospitalization(Within a year)

Yes

(reference)

(reference)

No

-1.078

0.117

84.635

0.340(0.271,0.428)***

-0.367

0.134

7.496

0.693(0.533,0.901)**

Number of chronic diseases

0

(reference)

(reference)

1

0.642

0.103

36.726

1.866(1.525,2.283)***

0.179

0.121

2.177

1.196(0.943,1.517)

≥2

1.508

0.123

150.299

4.517(3.550,5.749)***

0.708

0.144

24.073

2.030(1.530,2.693)***

Source of income

Employment income

(reference)

(reference)

Child support

0.547

0.158

12.017

1.728(1.268,2.335)**

-0.055

0.194

0.079

0.947(0.648,1.384)

Government subsidy

0.597

0.`165

13.084

1.816(1.314,2.509)***

-0.200

0.215

0.868

0.818(0.537,1.248)

Employment status

Unemployed

(reference)

(reference)

Employed

-0.936

0.090

107.089

0.392(0.328,0.468)***

-0.644

0.118

29.777

0.525(0.417,0.662)***

Cognition

Robust

(reference)

(reference)

Limited

1.130

0.073

241.337

1.690(1.410,2.025)***

-0.739

0.127

33.841

0.477(0.372,0,613)***

Mobility

Robust

(reference)

(reference)

Limited

1.909

0.098

378.810

6.745(5.566,8.175)***

0.808

0.129

39.484

2.243(1.743,2.885)***

Self care

Robust

(reference)

(reference)

Limited

1.919

0.160

143.892

6.812(4.979,9.320)***

0.301

0.217

1.926

1.352(0.883,2.068)

Getting along

Robust

(reference)

(reference)

Limited

1.443

0.119

147.227

4.235(3.354,5.347)***

0.480

0.164

8.604

1.615(1.173,2.226)**

Life activities

Robust

(reference)

(reference)

Limited

1.916

0.099

377.008

6.791(5.597,8.239)***

0.914

0.131

48.397

2.494(1.928,3.226)***

Social participation

Robust

(reference)

(reference)

Limited

1.881

0.123

235.370

6.557(5.157,8.338)***

0.797

0.149

28.523

2.218(1.656,2.971)***