Table 2.

Multivariable regression analysis of factors associated with depression symptoms

Variable	Moderate/severe, n (%)	OR (95% CI)	P value*
			Category	Overall
Self-rated health
Good	33 (11.3)	1 (reference)	NA	0.009
Poor	48 (32.2)	2.24 (1.22 to 4.11)	0.009
LPE per week
≥4	7 (9.0)	1 (reference)	NA	0.001
1–3	27 (14.1)	1.72 (0.71 to 4.14)	0.229
None	47 (27.5)	3.93 (1.67 to 9.26)	0.002
Sleep quality
Good	19 (9.6)	1 (reference)	NA	0.001
Fair	27 (14.1)	2.78 (1.54 to 5.01)	0.001
Poor	11 (37.9)	4.30 (1.65 to 11.24)	0.003
Overtime work per week
None	32 (12.5)	1 (reference)	NA	0.041
1–2	39 (25.3)	1.82 (1.04 to 3.18)	0.035
≥3	10 (32.3)	2.49 (1.05 to 5.92)	0.039
Self-perceived work stress
Low	5 (7.7)	1 (reference)	NA	0.019
Intermediate	45 (16.2)	2.06 (0.78 to 5.46)	0.147
High	31 (31.3)	3.83 (1.35 to 10.90)	0.012

*Category refers to the p value for each category versus the reference, while overall refers to the results of the logistic regression.

LPE, leisure time or physical exercise; NA, not applicable.