Relationship between high-temperature working classification and hypertension among iron and steel production workers / 中国职业医学

ABSTRACT

OBJECTIVE: To analyze the relationship between the high-temperature working classification and prevalence of hypertension in iron and steel production workers. METHODS: By a convenience sampling method,2 798 workers in an iron and steel production enterprise were selected as study subjects. They were divided into high-temperature working group( 1 070 cases) and non-high-temperature working( control) group( 1 728 cases). The occupational health status was investigated by questionnaire survey and the blood pressure was measured. The wet bulb globe temperature in workplace of high temperature working group was measured,and the high-temperature classification was made based on the time of exposure to high temperature. RESULTS: The prevalence rate of hypertension of 2 798 iron and steel production workers was32. 8%. The prevalence rate of hypertension of high-temperature working group was higher than that of the control group( 41. 3% vs 27. 5%,P < 0. 01). The prevalence rate of hypertension in high temperature working group presented an increasing tendency with the increase of high-temperature working level( P < 0. 01). The multiple logistic regression analysis results showed that excluding the confounding factors of age,body mass index,family history of hypertension,educational background,smoking,alcohol drinking,salt intake and mental stress,it showed that high-temperature working classification was positively correlated with increasing prevalence of hypertension in high-temperature working group( P <0. 01); and the initial exposure age to high-temperature was negatively correlated with the prevalence of hypertension in iron and steel production workers( P < 0. 01). CONCLUSION: High-temperature is an important influence factor to the prevalence of hypertension in iron and steel production workers. Strengthening the management of high-temperature classification is helpful for the prevention and treatment control of hypertension in the iron and steel production workers