Letters

...or in Norway

BMJ 1994; 308 doi: https://doi.org/10.1136/bmj.308.6922.205c (Published 15 January 1994) Cite this as: BMJ 1994;308:205
  1. P Kristensen,
  2. L Mirgens
  1. National Institute of Occupational Health, PO Box 8149 Dep, N-0033 Oslo, Norway Medical Birth Registry of Norway, University of Bergen, Bergen, Norway.

    EDITOR, - The relation between parental exposure to the fungicide benomyl and anophthalmia in children has received attention.1 We have investigated the hypothesis that a maternal occupational activity that could result in exposure to benomyl during the first trimester is a risk factor for anophthalmia or microphthalmia. A Norwegian multiregister study offered the opportunity to explore this association.

    A national cohort of farming families has been established from all five agricultural or horticultural censuses during 1969-89. All 157 360 personal farm holders born later than 1924 have been identified, and information concerning the activity at the farm at the time of the censuses …

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