Effects of Occupational Hazards on Job Stress and Mental Health of Factory Workers and Miners: A Propensity Score Analysis

Table 3

Comparison of propensity score matching for job stress.

Variable	(95% CI)	Beta	Standard	OR (95% CI)	VIF		value
Before matching (, , )
Intercept	-1.77 (-2.55, -0.99)	0.40	—	0.17 (0.08, 0.37)	—	-4.44	<0.001
Sex	-0.33 (-0.45, -0.21)	0.06	-0.32	0.72 (0.64, 0.81)	1.2	-5.47	<0.001
Ethnicity	0.18 (0.04, 0.32)	0.07	0.14	1.20 (1.04, 1.37)	1.04	2.56	0.01
Education level	0.38 (0.31, 0.44)	0.03	0.7	1.46 (1.37, 1.55)	1.21	11.78	<0.001
Labor contracts	-0.51 (-0.82, -0.20)	0.16	-0.19	0.60 (0.44, 0.82)	1.07	-3.2	<0.001
Professional title	-0.01 (-0.06, 0.04)	0.02	-0.03	0.99 (0.94, 1.04)	1.11	-0.47	0.64
Work schedule	0.08 (0.03, 0.13)	0.02	0.19	1.08 (1.03, 1.14)	1.14	3.37	<0.001
Marital status	-0.07 (-0.19, 0.06)	0.06	-0.06	0.93 (0.82, 1.06)	1.31	-1.06	0.29
Monthly income	-0.08 (-0.13, -0.04)	0.02	-0.21	0.92 (0.88, 0.96)	1.16	-3.73	<0.001
Diabetes	0.17 (-0.05, 0.39)	0.11	0.08	1.19 (0.95, 1.48)	1.06	1.49	0.14
Hypertension	0.34 (0.20, 0.48)	0.07	0.27	1.40 (1.23, 1.62)	1.15	4.85	<0.001
Age	0.05 (0.00, 0.11)	0.03	0.17	1.05 (1.00, 1.11)	3.13	1.79	0.07
Working years	0.04 (0.00, 0.08)	0.02	0.17	1.04 (1.00, 1.08)	2.98	1.81	0.07
Working hours per day	0.28 (0.12, 0.43)	0.08	0.20	1.32 (1.13, 1.54)	1.22	3.52	<0.001
Working days per week	0.22 (0.10, 0.33)	0.06	0.21	1.25 (1.11, 1.39)	1.09	3.75	<0.001
After matching (, , )
Intercept	-0.35 (-1.22, 0.52)	0.44	—	0.70 (0.30, 1.68)	—	-0.79	0.43
Sex	0.03 (-0.10, 0.16)	0.07	0.03	1.03 (0.90, 1.17)	1.2	0.42	0.67
Ethnicity	0.05 (-0.01, 0.20)	0.08	0.04	1.05 (0.91, 1.22)	1.04	0.67	0.50
Education level	0.02 (-0.05, 0.09)	0.04	0.04	1.02 (0.95, 1.09)	1.22	0.57	0.57
Labor contracts	0.09 (-0.29, 0.47)	0.19	0.03	1.09 (0.75, 1.60)	1.06	0.46	0.65
Professional title	0.01 (-0.04, 0.06)	0.03	0.02	1.01 (0.96, 1.06)	1.1	0.38	0.70
Work schedule	0.01 (-0.04, 0.06)	0.03	0.02	1.01 (0.96, 1.06)	1.13	0.31	0.75
Marital status	-0.02 (-0.16, 0.11)	0.07	-0.02	0.98 (0.85, 1.12)	1.32	-0.32	0.75
Monthly income	-0.01 (-0.06, 0.04)	0.02	-0.02	0.99 (0.95, 1.04)	1.17	-0.37	0.71
Diabetes	0.01 (-0.23, 0.25)	0.12	0.01	1.01 (0.80, 1.29)	1.06	0.1	0.92
Hypertension	0.00 (-0.15, 0.15)	0.08	0	1.00 (0.86, 1.16)	1.15	0.01	0.99
Age	0.01 (-0.05, 0.08)	0.03	0.05	1.01 (0.95, 1.08)	3.27	0.47	0.64
Working years	-0.01 (-0.05, 0.04)	0.02	-0.03	0.99 (0.95, 1.04)	3.06	-0.32	0.75
Working hours per day	0.02 (-0.14, 0.19)	0.09	0.02	1.02 (0.87, 1.21)	1.22	0.26	0.79
Working days per week	0.03 (-0.09, 0.16)	0.06	0.03	1.03 (0.92, 1.17)	1.09	0.54	0.59