Identification of Iowa live births in the Agricultural Health Study

Arch Environ Occup Health. Jul-Sep 2010;65(3):154-62. doi: 10.1080/19338241003730903.


In the Agricultural Health Study, information on participant live births was largely provided by female partners of male private applicators. At the Iowa site, such information was available for 13,599 (42.9%) of 31,707 applicators. To improve identification of live births among Iowa participants, we used a probabilistic and deterministic approach to link available demographic data from 31,707 households and information on live births from 13,599 households with 1,014,916 Iowa birth certificates. Record linkage identified 16,611 (93.7%) of 17,719 reported live births and 17,883 additional live births, most (14,411 or 80.6%) not reported due to nonresponse by female partners. This record linkage produced an expanded cohort of live-born children among Iowa participants, which will facilitate improved study of the effects of agricultural exposures, including pesticides, on selected birth outcomes and childhood disease.

Publication types

  • Research Support, N.I.H., Intramural
  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Agricultural Workers' Diseases / epidemiology*
  • Agriculture / statistics & numerical data
  • Birth Certificates
  • Family Characteristics
  • Female
  • Health Surveys
  • Humans
  • Iowa / epidemiology
  • Live Birth / epidemiology*
  • Male
  • Occupational Exposure / adverse effects
  • Occupational Exposure / statistics & numerical data*
  • Parity
  • Pregnancy