{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,21]],"date-time":"2026-03-21T18:52:18Z","timestamp":1774119138861,"version":"3.50.1"},"reference-count":26,"publisher":"MDPI AG","issue":"7","license":[{"start":{"date-parts":[[2015,6,30]],"date-time":"2015-06-30T00:00:00Z","timestamp":1435622400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJERPH"],"abstract":"<jats:p>The purpose of this study was to identify differences in the incidence characteristics of coal workers\u2019 pneumoconiosis (CWP) based on data from four large  state-owned colliery groups of China, by comparing the cumulative incidence rates of CWP. We investigated 87,904 coal workers from the Datong, Kailuan, Fuxin, and Tiefa Colliery Groups, who were exposed to dust for at least 1 year. The cumulative incidence rate of CWP was calculated with the life-table method and stratified analysis among coal workers with different occupational categories during different years of first dust exposure. Our results showed the cumulative incidence rate of Datong was higher than that of any other colliery group among workers with different occupational categories during different years of first dust exposure. For Datong workers who started their dust exposure in the 1970s, the cumulative incidence rates of CWP among tunneling, mining, combining, and helping workers were 34.77%, 10.20%, 34.59%, and 4.91% during the observed time of  34 years, respectively. For those in the 1980s, the cumulative incidence rates were 32.29%, 13.51%, 2.98%, and 0.47%, respectively. The cumulative incidence rates of Fuxin and Tiefa were the lowest. In conclusion, the Datong colliery has the highest cumulative incidence rate of CWP among the four studied collieries, followed by Kailuan. The cumulative incidence rates of Fuxin and Tiefa were the lowest. Additional dust-proofing measures for decreasing dust concentrations are still necessary.<\/jats:p>","DOI":"10.3390\/ijerph120707444","type":"journal-article","created":{"date-parts":[[2015,6,30]],"date-time":"2015-06-30T11:40:13Z","timestamp":1435664413000},"page":"7444-7456","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":21,"title":["Comparison of the Cumulative Incidence Rates of Coal Workers\u2019 Pneumoconiosis between 1970 and 2013 among  Four State-Owned Colliery Groups in China"],"prefix":"10.3390","volume":"12","author":[{"given":"Kai","family":"Cui","sequence":"first","affiliation":[{"name":"School of Public Health, China Medical University, Shenyang 110013, Liaoning, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fuhai","family":"Shen","sequence":"additional","affiliation":[{"name":"School of Public Health, China Medical University, Shenyang 110013, Liaoning, China"},{"name":"School of Public Health, Hebei United University, Tangshan 063000, Hebei, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bing","family":"Han","sequence":"additional","affiliation":[{"name":"School of Public Health, China Medical University, Shenyang 110013, Liaoning, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Juxiang","family":"Yuan","sequence":"additional","affiliation":[{"name":"School of Public Health, Hebei United University, Tangshan 063000, Hebei, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xia","family":"Suo","sequence":"additional","affiliation":[{"name":"Occupational Disease Prevention and Treatment Hospital of Datong Coal Mine Group,  Datong 037003, Shanxi, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tianbang","family":"Qin","sequence":"additional","affiliation":[{"name":"Occupational Disease Prevention and Treatment Hospital of Kailuan Colliery Group,  Tangshan 063000, Hebei, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hongbo","family":"Liu","sequence":"additional","affiliation":[{"name":"School of Public Health, China Medical University, Shenyang 110013, Liaoning, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jie","family":"Chen","sequence":"additional","affiliation":[{"name":"School of Public Health, China Medical University, Shenyang 110013, Liaoning, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2015,6,30]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"123","DOI":"10.1097\/MCP.0b013e3283431674","article-title":"Emphysema and chronic obstructive pulmonary disease in coal miners","volume":"17","year":"2011","journal-title":"Curr. 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