| Objectives Mine emergency rescuer was a special group doing special types of work who always worked in a bundle of nerves. As it reported, long-term chronic occupational stress can not only harm to the individual mental state, but also would cause a series of diseases. In order to explore the main occupational stressors and mental health of mine emergency rescuers,to learn the capabilities to handle emergencies and mental stressors which caused by long-term tension and to explore the effects of occupational stress on rescuers'cardiovascular functions, and to provide basis for explore simple and effective psychological interventions which adapt to the rescuers, we conducted the present study on the occupational stress and its effect on cardiovascular of mine emergency rescuers.Methods In a method of cluster sampling, 330 rescuers from the mine rescue team of National Mine Emergency Kailuan Base and 92 automobile mechanics of Tangshan long-distance passenger transportation company were selected as investigated subjects to investigate the general information and occupational stress, as well as cardiovascular functions. The general information include factors such as age, seniority, educational level, marital status, smoking history, drinking history, and so on. The survey of occupational stress consists of three scale components, namely, stressor, modifier and strain reaction. Among them, the stressors include physical environment, job conflicts, job control, job responsibilities, job risks, job demands, job monotonousness, job roles, job prospects, opportunity of participation and promotion. The modifiers include the type A behavior, locus of job control, coping strategies, self-respect, social supports. Strains include job satisfaction, mental health, psychosomatic health, depression, drug using, daily stress, emotional balance. The cardiovascular function tests include the examination of blood pressure, blood sugar, cholesterol, triglycerides and electrocardiogram. According to the research objective, the t-test, ranksum test, Chi-square test, and Logistic regression analysis were used for statistical analysis.Results1 The analysis of job stress degree of mine emergency rescuersMine emergency rescuers'scores in ability of job control, locus of control, superior support, job satisfaction, self-respect, mental health and drug using were lower than those of the control group. While, the scores of work demands, job prospects, patience and daily tension were higher than those in the control group.2 The analysis of cardiovascular function of mine emergency rescuersThe systolic blood pressures of mine emergency rescuers and policemen respectively were (121.28±16.81) mmHg and (119.26±15.94) mmHg. And the diastolic blood pressures of two groups respectively were (79.98±11.15) mmHg and (77.79±11.82) mmHg. The blood pressure level of mine emergency rescuers was higher than those of control group(P<0.05). The prevalence rate of Hypertension of coal mine emergency rescuers was 20.0% and electrocardiogram abnormal rate was 9.7%. The standardized rate of hypertension in rescuers(23.3%)was higher than that of residents in Suzhou city (22.5%).3 The analysis of occupational stress influencing on cardiovascular function of mine emergency rescuersAfter controlling the confounding factors, age, length of service, body mass index and other common factors, shift, job risks and job satisfaction were into the regression equation of hypertension. The main factors affecting hypertriglyceridemia included simulated training, job monotonous and job responsibilities. Hypercholesterolemia was affected by job responsibilities and daily stress. Participating in relief, and drug use were become the influence factors of hyperglycemia. Abnormal electrocardiogram was affected by physical environment and daily stress.Conclusion1 Mine emergency rescuers suffered a higher degree of occupational stress. Relief was the main source of occupational stress. Ability of low work control, high work demands, uncertain job prospects, strong patience, intrinsic locus of control, less support from the superior, lack of self-respect, job satisfaction and mental health, and high daily stress were popular among mine emergency rescuers.2 The hypertension rate of mine emergency rescuers was higher than that of those people. The blood pressure level of mine emergency rescuers was higher than those of control group.3 After controlling the confounding factors, age, length of service, Body Mass Index and other common factors, shift, job risks and job satisfaction were into the regression equation of hypertension. Hypercholesterolemia was affected by job responsibilities and daily stress. Participating in relief, and drug using were become the influence factors of hyperglycemia. And simulated training had become mitigate their one of the effective methods of cardiovascular function. |
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