A cohort mortality study of employees in the US carbon black industry

被引:30
作者
Dell, Linda D.
Mundt, Kenneth A.
Luippold, Rose S.
Nunes, Anthony P.
Cohen, Linda
Burch, Margaret T.
Heidenreich, Maria J.
Bachand, Annette M.
机构
[1] ENVIRON Int Corp, Amherst, MA 01004 USA
[2] Colorado State Univ, Dept Environm & Radiol Hlth Sci, Ft Collins, CO USA
关键词
D O I
10.1097/01.jom.0000218701.62658.a2
中图分类号
R1 [预防医学、卫生学];
学科分类号
1004 ; 120402 ;
摘要
Objectives: The objectives of this study are to evaluate historical mortality patterns, especially due to cancers, among employees of the U.S. carbon black industry and to address the methodological shortcomings of previous U.S. mortality studies. Methods: We followed mortality of 5011 workers employed I year or more since the 1930s at 18 carbon black facilities through December 31, 2003. Age-, race-, sex-, and calendar year-adjusted standardized mortality ratios (SMRs) were calculated using state-specific mortality rates. Results: Follow up was 96% complete. All-cause (SMR = 0.74, 95% confidence interval [G] = 0.70-0.78) and all-cancer mortality (SMR = 0.83, 95% G = 0.74-0.92) showed significant deficits. No excess was observed from lung (SMR = 0.97, 95% CI = 0.82-1.15) or bladder (SMR 0.93, 95% CI = 0.47-1.87) cancers or from nonmalignant respiratory diseases (SMR 0. 99, 95% CI = 0.83-1.18). No trends were seen with duration of employment or time since hire for any cause of death. Conclusion: Employment in carbon black production in the United States seems not to be associated with increased mortality overall, cancer overall and, in particular, lung cancer. Further research, however, incorporating a detailed exposure assessment is needed to determine whether exposure to carbon black at high levels may be associated with an increased risk of cancer.
引用
收藏
页码:1219 / 1229
页数:11
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