Occupational stress and psychological health impact on hypertension of miners in noisy environment in Wulumuqi, China: a case-control study

Table 2 General information of categorical data

	Hypertension = No		Hypertension = Yes		Total
	Numbers (N)	Constituent Ratio (%)	Numbers (N)	Constituent Ratio (%)	Numbers (N)	Constituent Ratio (%)
Sex
Male	1678	64.09	806	91.59	2484	71.01
Female	940	35.91	74	8.41	1014	28.99
Ethnic
Han ethnic	2179	83.23	768	87.27	2947	84.25
Non-Han ethnic	439	16.77	112	12.73	551	15.75
Educational level
Middle school	109	4.16	38	4.32	147	4.20
High school	496	18.95	287	32.61	783	22.38
Technological academy	1215	46.41	389	44.20	1604	45.85
Bachelor degree or above	798	30.48	166	18.86	964	27.56
Sign labor contract
Yes	2596	99.16	879	99.89	3475	99.34
No	22	0.84	1	0.11	23	0.66
Professional title
No	974	37.20	341	38.75	1315	37.59
Elementary	524	20.02	97	11.02	621	17.75
Middle	634	24.22	230	26.14	864	24.70
Senior	486	18.56	212	24.09	698	19.95
Work shift
Day	1310	50.04	457	51.93	1767	50.51
Night	83	3.17	26	2.95	109	3.12
Shift work	1225	46.79	397	45.11	1622	46.37
Working time per day
≤ 8	1830	69.90	631	71.70	2461	70.35
>8	788	30.10	249	28.30	1037	29.65
Working days per week
≤ 5	1970	75.25	641	72.84	2611	74.64
>5	648	24.75	239	27.16	887	25.36
Marital status
Unmarried	282	10.77	42	4.77	324	9.26
Married	2160	82.51	765	86.93	2925	83.62
Dissociation	162	6.19	65	7.39	227	6.49
Bereft of one’s spouse	14	0.53	8	0.91	22	0.63
Monthly income
≤ 3000 Yuan	708	27.04	254	28.86	962	27.50
3000 ~ 5000 Yuan	1476	56.38	509	57.84	1985	56.75
5000 ~ 7000 Yuan	377	14.40	102	11.59	479	13.69
>7000 Yuan	57	2.18	15	1.70	72	2.06
Occupational Stress
No	1279	48.85	359	40.80	1638	46.83
Yes	1339	51.15	521	59.20	1860	53.17
Psychological health problem
No	1527	58.33	355	40.34	1882	53.80
Yes	1091	41.67	525	59.66	1616	46.20

ISSN: 1471-2458