Cancer incidence among laboratory workers in biomedical research and routine laboratories in Israel: Part II-nested case-control study

Background A case‐control study nested within a cohort study of biomedical laboratory workers was conducted to examine whether the excess cancer morbidity that we found can be explained by exposure to a particular group of substances, taking into consideration potential confounders. Methods The stud...

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Veröffentlicht in:American journal of industrial medicine 2003-12, Vol.44 (6), p.611-626
Hauptverfasser: Shaham, Judith, Gurvich, Rachel, Kneshet, Yael
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Sprache:eng
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Zusammenfassung:Background A case‐control study nested within a cohort study of biomedical laboratory workers was conducted to examine whether the excess cancer morbidity that we found can be explained by exposure to a particular group of substances, taking into consideration potential confounders. Methods The study population included 163 cases and two matched control groups: laboratory workers (311) and general population (448) workers. Results Multiple conditional regression analysis showed that working in research laboratories involved an increased risk of cancer generally among women [risk ratio 2.2 (1.2–4.3)], and of breast cancer particularly [risk ratio 2.3 (1.1–4.7). Seventy‐six percent (76%) of breast, 87% of thyroid, 60% of ovary and prostate, 94% of melanoma, and 50% of leukemia cases were ever exposed to at least one known human carcinogen. Conclusion Our results exclude the possibility that the excess cancer morbidity was related to personal risk factors but they may be explained by exposure factors. Am. J. Ind. Med. 44:611–626, 2003. © 2003 Wiley‐Liss, Inc.
ISSN:0271-3586
1097-0274
DOI:10.1002/ajim.10312