Table 4 Multivariate logistic regression analysis of respondents (n = 2617)

Daily working hours

0.187

0.070

7.241

1

0.007

1.206

Cox-Snell R2 = 0.015

Nagelkerke R2 = 0.027

Age (contrast = 20–30)

6.790

3

0.079

31–40

−0.094

0.192

0.238

1

0.626

0.910

41–50

−0.436

0.246

3.126

1

0.077

0.647

51+

−0.742

0.329

5.087

1

0.024

0.476

Education level (contrast = college degree or below)

3.332

3

0.343

Education level: bachelor

0.132

0.192

0.477

1

0.490

1.141

Education level: master

0.338

0.219

2.382

1

0.123

1.401

Education level: doctor

0.044

0.263

0.028

1

0.867

1.045

Professional title (contrast = without professional title)

9.287

4

0.054

Professional title: resident doctor

0.329

0.213

2.392

1

0.122

1.390

Professional title: attending physician

0.412

0.235

3.072

1

0.080

1.510

Professional title: associate chief physician

0.696

0.280

6.191

1

0.013

2.005

Professional title: chief physician

0.237

0.318

0.556

1

0.456

1.267

Constant

1.123

0.243

21.288

1

0.001

3.073

Overall model fit test