Cancer in California school employees, 1988-1992

Am J Ind Med. 1999 Aug;36(2):271-8. doi: 10.1002/(sici)1097-0274(199908)36:2<271::aid-ajim6>;2-i.


Background: Periodic concerns about excesses of cancer among teachers in California schools prompted our examination of cancer incidence in California school employees.

Methods: Records of school employees between 1987-1992 were linked to the California Cancer Registry of incident cases diagnosed 1988-1992. Sex-, race-, and age-adjusted standardized incidence ratios were calculated for specific cancer sites. Analyses stratified by sex, race/ethnicity, and job assignment were also performed.

Results: Melanoma of the skin, thyroid cancer, prostate cancer, and female cancers of the breast, uterus, and ovary all occurred more frequently than expected in these school employees. In contrast, cancers of the respiratory system, oral cavity, digestive system, urinary system, and uterine cervix occurred less frequently.

Conclusions: The incidence of cancers thought to be related to hormones and/or higher socioeconomic status appeared elevated while cancers often linked to smoking and/or alcohol intake occurred less frequently in this large cohort of professional school employees.

Publication types

  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Adult
  • African Americans / statistics & numerical data
  • African Continental Ancestry Group
  • Age Factors
  • Breast Neoplasms / epidemiology
  • California / epidemiology
  • Cohort Studies
  • Digestive System Neoplasms / epidemiology
  • Ethnic Groups / statistics & numerical data
  • European Continental Ancestry Group / statistics & numerical data
  • Female
  • Hispanic Americans / statistics & numerical data
  • Humans
  • Incidence
  • Male
  • Middle Aged
  • Mouth Neoplasms / epidemiology
  • Neoplasms / epidemiology*
  • Ovarian Neoplasms / epidemiology
  • Prostatic Neoplasms / epidemiology
  • Registries
  • Respiratory Tract Neoplasms / epidemiology
  • Retrospective Studies
  • Sex Factors
  • Skin Neoplasms / epidemiology
  • Teaching / statistics & numerical data*
  • Thyroid Neoplasms / epidemiology
  • Uterine Neoplasms / epidemiology