Table 4.

Multivariate logistic regression analysis of respondents (n = 2617)

Variables	B	S.E.	Wald	Df	P	OR	Correlation strength
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	X2 = 37.805 Hosmer-Lemeshow =6.213