Objectives The prevalence of MS and its components were analyzed by questionnaire and occupational physical examination, and the relationship between the general situation,occupational factors, dietary factors and the MS of three workers were discussed.Methods Selected from December 2015 to December 2016 in Shijiazhuang steel,GREE air conditioning, white dragon chemical plant 3 a total of 2238 employees as the research object. The investigators who have the basic epidemiology have a questionnaire survey, physical examination and laboratory test. The contents of the questionnaire include: basic situation, dietary habits, occupational factors, physical examination by professional medical staff in accordance with the rules of the occupation population height, weight, waist circumference, blood pressure standard measurement. Laboratory testing for the use of automatic biochemical analyzer detection of fasting blood glucose,total cholesterol, triglyceride, HDL-C, LDL - C. The use of SPSS for data analysis, chi square analysis of the relationship between different gender and MS and its components,analysis of the relationship between theparty of different age, length of service and the trend of MS card, Logistc regression analysis, the relationship between dietary factors and occupation MS and its components.Results The study investigated a total of three factories, involving three industries(metallurgy, chemical, manufacturing), of which the rolling mill of 1146 people, white dragon chemical, GREE, a total of 2238 people. There were 1734 males and females,with a mean age of between 18 and 60 years, and the age of the patients was from 1 to 42 years. Through the two step cluster analysis, the subjects were divided into three categories, namely, the animal model of the diet of the people, the traditional dietary pattern of 797 people, a balanced diet mode of 759 people, and the results showed that there were no differences between the two groups. Of the 2238 people, there were 2 cases of abnormal metabolic components in most of the cases, accounting for 33.6% of the total number of patients in the study, and the other 1 metabolic abnormalities were mainly in central obesity. MS five components in the central obesity rate was the highest abnormal number of 1316 people, the abnormal rate was 58.8%, the lowest rate of abnormal HDL-C, abnormal number of 90 people, the abnormal rate was 4%. The rates of glycerol three and central obesity increased with age (P<0.01). A total of 377 patients with MS were enrolled in the study, with a prevalence rate of 16.8%. Different gender different between the prevalence rate of MS (P<0.05), the prevalence rate of male was higher than female;the prevalence of smokers than non-smokers, MS prevalence was higher than non drinkers drinkers, whether to participate in physical exercise MS no difference in the prevalence rate is low in animal models; in MS equilibrium mode under different dietary patterns (P<0.05) and other dietary patterns no difference in the prevalence rate of MS.With the increase of labor intensity, the prevalence of MS decreased (P<0.05). The prevalence of MS among three different industries was compared with that of the prevalence of MS in steel industry was higher than that in manufacturing industry(P<0.05). There was a significant difference in the prevalence rate of MS among the various harmful factors, the difference was statistically significant (P<0.05). Multi factor regression analysis, age (OR = 1.02,95%CI: 1.0081.032),smoking (OR = 1.293,95%CI: 1.0291.625) is an independent risk factor of MS. Women (OR = 0.521,95%CI:0.3720.730), large labor intensity (OR = 0.799, 95%CI:0.6580.971) were the independent protective factors of metabolic syndrome.Conclusions 1 The prevalence rate of 16.8%, 1 of the study population MS, central obesity rate was 58.8%, the abnormal rate of entry for a minimum of 4%, glycerin three greases and central obesity rate increases with age.2 The prevalence rate of male MS was higher than that of female. The prevalence of MS was higher in smokers than non-smokers, and the prevalence rate of MS was higher than that of non drinkers. The prevalence of MS in equilibrium models was lower than that in animal models of MS.3 With the increase of labor intensity, the prevalence of MS is decreased. The prevalence of MS in steel industry is higher than that in manufacturing industry. The prevalence rate of MS was different in various harmful factors.4 age, smoking is an independent risk factor for MS, labor intensity is an independent protective factor MS. |