• K. S. Khera
  • H. C. Grice
  • D. J. Clegg
Part of the Current Issues in Toxicology book series (CI TOXICOLOGY)


Over the last 25 years the number of women employed outside the home has risen dramatically in many countries. For example, in Canada the number has risen from 1 8 million in 1962 (29% of all women 15 years of age and older) to 4.9 million (52%) in 1982 (Statistics Canada, 1983). This increased participation rate—the number of women in the labor force as a percentage of all women in the population— has been mirrored by a trend for women to continue working for a greater proportion of their pregnancies. A recent survey (Statistics Canada, 1982) estimated that in 1981, 150,000 women were absent from work for two or more weeks during the year because of pregnancy. Although this number is only an approximation of the total number of women in the labor force who were pregnant during that year, it is an indication of the large number of pregnancies potentially at risk from the occupational environment.


Spontaneous Abortion Rubella Virus Occupational Environment Etiologic Study Organochlorine Insecticide 


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Copyright information

© Springer-Verlag New York Inc. 1989

Authors and Affiliations

  • K. S. Khera
    • 1
  • H. C. Grice
    • 2
  • D. J. Clegg
    • 1
  1. 1.Health Protection BranchHealth and Welfare CanadaOttawaCanada
  2. 2.NepeanCanada

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