Risk of arterial hypertension in workers employed at coal-mining enterprises: social and hygienic assessment

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A.N. Chigisova1, M.Yu. Ogarkov1,2, S.A. Maksimov1


1 Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnoviy blvd, Kemerovo, 650002, Russian Federation
2 Novokuznetskiy State Institute for Medical Workers Development, 5 Stroiteley Ave., Novokuznetsk, 654005, Russian Federation


We analyzed risks of arterial hypertension development in occupational groups employed at coal-mining enterprises in Kemerovo region (1,915 workers). We used data on arterial hypertension development in Kemerovo region as our reference group; these data were obtained within the framework of ESSE-RF epidemiologic research (700 people aged 25–64 were exam-ined). We noted that work at coal-mining enterprises involved several factors which could have negative influence on workers' health. Working conditions for those workers who had to stay in a mine during the whole working shift meant that workers were under negative impacts caused by unfavorable microclimate and heavy dust loads. To eliminate age discrepancies between workers employed at coal-mining enterprises and the reference group, we performed standardization as per age (data on the reference group were taken as our standard). We calculated arterial hypertension frequencies in the chosen occupational groups and determined relative risks of arterial hypertension via creation of contingency tables. To exclude any influence that might be exerted on relative risks of arterial hypertension by occupational selection, we corrected the obtained results as per "health recruitment effect". Miners had lower arterial hypertension prevalence among them than unorganized sampling made of ordinary Kemerovo region population, 28.46 % and 53.29 % (p<0.001). We showed that statistically significant low risks of arterial hypertension among workers were due to occupational selection they had to undergo when being recruited. As we per-formed this correction as per "healthy recruitment effect" arterial hypertension risks for miners and drifters changed from sta-tistically significant low to statistically significant high, from 0.55 (95 % CI 0.48–0.64) to 1.14 (95 % CI 1.04–1.26). So, if we want to assess arterial hypertension prevalence and risks in occupational groups where occupational selection can't be excluded we should perform this additional correction to remove "healthy recruitment effect".

risk assessment techniques, arterial hypertension, working population, occupational selection, a healthy worker effect, healthy recruitment effect, hygienic assessment of working conditions, ESSE-RF
Chigisova A.N., Ogarkov M.Yu., Maksimov S.A. Risk of arterial hypertension in workers employed at coal-mining enterprises: social and hygienic assessment. Health Risk Analysis, 2017, no. 3, pp. 76–82. DOI: 10.21668/health.risk/2017.3.09.eng
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