Analysis of occupational stress and its correlation with oxidative-antioxidant levels among employees of a power grid enterprise in Guangdong

Table 2 Logistic regression analysis for factors associated with the JDC model occupational stress among employees

Variables	Beta	S.E	Wald	P value	OR(95%CI)
Monthly income/yuan			10.026	0.018
<5000	reference
5000~	0.416	0.263	2.499	0.114	1.516 (0.905,2.540)
7000~	0.617	0.269	5.239	0.022	1.853 (1.093.3.142)
9000~	1.109	0.375	8.740	0.003	3.031 (1.453.6.321)
High-temperature and high-altitude operation
No	reference
yes	0.774	0.192	16.277	< 0.001	2.168 (1.489,3.158)
Visual display terminal operation
No	reference
yes	0.596	0.197	9.185	0.002	1.815 (1.234,2.669)
Exercise
No	reference
yes	−0.526	0.217	5.854	0.016	0.591 (0.386,0.905)
Sleeping time/h			4.651	0.098
< 6	reference
6~	0.145	0.215	0.452	0.501	1.156 (0.758,1.763)
7~	−0.358	0.255	1.975	0.160	0.699 (0.424,1.152)

Dependent variable assignment: JDC model occupational stress: low = 0, high = 1; independent variable assignment: high-temperature and high-altitude operation, visual display terminal operation, exercise: no = 0, yes = 1; Monthly income (dummy variable): < 5000 yuan = 1 (reference), 5000 ~ yuan = 2, 7000 ~ yuan = 3, 9000 ~ yuan = 4; Sleep time (dummy variable): < 6 hours = 1 (reference), 6 ~ hours = 2, 7 ~ hours = 3

ISSN: 1471-244X