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. 1983 Aug;40(3):346–352. doi: 10.1136/oem.40.3.346

Evaluating occupational hazards using information known only to employers: a comparative study.

L R John, G M Marsh, P E Enterline
PMCID: PMC1069333  PMID: 6871125

Abstract

A comparative study was conducted to assess empirically the suspected bias associated with occupational health studies based only on information obtainable from employers' records. Standardised mortality ratios were extracted from five occupational cohorts for which extensive follow up had been conducted and were compared with proportional mortality ratios based on deaths known (KTE) and unknown (UTE) to the employer, and on total deaths. For the five cohorts examined the suspected bias for the cause of death categories all cancer, respiratory cancer, heart disease, and accidents was generally found to be minimal unless the number of UTE deaths was in excess of 75%. Furthermore, a strong inverse relationship was observed between the percentage of UTE deaths and the level of agreement between proportional mortality ratios based on KTE deaths and total deaths. In partial support of these findings it was also observed that workers who left the industry in three of the five cohorts subsequently experienced similar overall mortality compared with those who continued employment. These findings should serve as a rough indication of the potential value of estimating disease risks from KTE deaths and serve as a guide for other investigators using limited data.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Chiazze L., Jr, Nichols W. E., Wong O. Mortality among employees of PVC fabricators. J Occup Med. 1977 Sep;19(9):623–628. [PubMed] [Google Scholar]
  2. Collins J. F., Redmond C. K. The use of retirees to evaluate occupational hazards. II. Comparison of cause specific mortality by work area. J Occup Med. 1978 Apr;20(4):260–266. [PubMed] [Google Scholar]
  3. Collins J. F., Redmond C. K. The use of retirees to evaluate occupational hazards. J Occup Med. 1976 Sep;18(9):595–602. [PubMed] [Google Scholar]
  4. Decoufle P., Lloyd J. W., Salvin L. G. Causes of death among construction machinery operators. J Occup Med. 1977 Feb;19(2):123–128. doi: 10.1097/00043764-197702000-00005. [DOI] [PubMed] [Google Scholar]
  5. Decoufle P., Lloyd J. W., Salvin L. G. Mortality by cause among stationary engineers and stationary firemen. J Occup Med. 1977 Oct;19(10):679–682. doi: 10.1097/00043764-197710000-00010. [DOI] [PubMed] [Google Scholar]
  6. Decoufle P., Thomas T. L. A methodological investigation of fatal disease risks in a large industrial cohort. J Occup Med. 1979 Feb;21(2):107–110. doi: 10.1097/00043764-197902000-00011. [DOI] [PubMed] [Google Scholar]
  7. Decouflé P., Thomas T. L., Pickle L. W. Comparison of the proportionate mortality ratio and standardized mortality ratio risk measures. Am J Epidemiol. 1980 Mar;111(3):263–269. doi: 10.1093/oxfordjournals.aje.a112895. [DOI] [PubMed] [Google Scholar]
  8. Fox A. J., Collier P. F. Low mortality rates in industrial cohort studies due to selection for work and survival in the industry. Br J Prev Soc Med. 1976 Dec;30(4):225–230. doi: 10.1136/jech.30.4.225. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Fox A. J., Collier P. F. Mortality experience of workers exposed to vinyl chloride monomer in the manufacture of polyvinyl chloride in Great Britain. Br J Ind Med. 1977 Feb;34(1):1–10. doi: 10.1136/oem.34.1.1. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Gaffey W. R. A critique of the standardized mortality ratio. J Occup Med. 1976 Mar;18(3):157–160. doi: 10.1097/00043764-197603000-00007. [DOI] [PubMed] [Google Scholar]
  11. Kupper L. L., McMichael A. J., Symons M. J., Most B. M. On the utility of proportional mortality analysis. J Chronic Dis. 1978 Jan;31(1):15–22. doi: 10.1016/0021-9681(78)90077-2. [DOI] [PubMed] [Google Scholar]
  12. Lloyd J. W., Decoufle P., Salvin L. G. Unusual mortality experience of printing pressmen. J Occup Med. 1977 Aug;19(8):543–550. [PubMed] [Google Scholar]
  13. Lloyd J. W. Long-term mortality study of steelworkers. V. Respiratory cancer in coke plant workers. J Occup Med. 1971 Feb;13(2):53–68. [PubMed] [Google Scholar]
  14. McMichael A. J. Standardized mortality ratios and the "healthy worker effect": Scratching beneath the surface. J Occup Med. 1976 Mar;18(3):165–168. doi: 10.1097/00043764-197603000-00009. [DOI] [PubMed] [Google Scholar]
  15. Miettinen O. Estimability and estimation in case-referent studies. Am J Epidemiol. 1976 Feb;103(2):226–235. doi: 10.1093/oxfordjournals.aje.a112220. [DOI] [PubMed] [Google Scholar]
  16. Monson R. R., Nakano K. K. Mortality among rubber workers. II. Other employees. Am J Epidemiol. 1976 Mar;103(3):297–303. doi: 10.1093/oxfordjournals.aje.a112227. [DOI] [PubMed] [Google Scholar]
  17. PINTO S. S., BENNETT B. M. EFFECT OF ARSENIC TRIOXIDE EXPOSURE ON MORTALITY. Arch Environ Health. 1963 Nov;7:583–591. doi: 10.1080/00039896.1963.10663587. [DOI] [PubMed] [Google Scholar]
  18. Redmond C. K., Breslin P. P. Comparison of methods for assessing occupational hazards. J Occup Med. 1975 May;17(5):313–317. [PubMed] [Google Scholar]
  19. Redmond C. K., Smith E. M., Lloyd J. W., Rush H. W. Long-term mortality study of steelworkers. 3. Follow-up. J Occup Med. 1969 Oct;11(10):513–521. [PubMed] [Google Scholar]
  20. Rencher A. C., Carter M. W., McKee D. W. A retrospective epidemiological study of mortality at a large western copper smelter. J Occup Med. 1977 Nov;19(11):754–758. [PubMed] [Google Scholar]

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