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Immigration and Risk of Childhood Lead Poisoning: Findings From a Case-Control Study of New York City Children

Objectives. We investigated whether foreign birthplace and residence were associated with an increased risk of childhood lead poisoning.

Methods. We conducted a matched case–control study among New York City children (mean age=3 years) tested for lead poisoning in 2002 (n=203 pairs). Children were matched on age, date of test, and residential area. Blood lead and housing data were supplemented by a telephone survey administered to parents or guardians. Conditional logistic regression analysis was used to examine the relationship of lead poisoning status to foreign birthplace and time elapsed since most recent foreign residence after adjustment for housing and behavioral risk factors.

Results. Both foreign birthplace and time since most recent foreign residence had strong adjusted associations with lead poisoning status, with children who had lived in a foreign country less than 6 months before their blood test showing a particularly elevated risk of lead poisoning relative to US-born children with no foreign residential history before their blood test (odds ratio [OR]=10.9; 95% confidence interval [CI]=3.3, 36.5).

Conclusions. Our findings demonstrate an increased risk of lead poisoning among immigrant children.


Published on 11-20-2009
Authors: Parisa Tehranifar, DrPH, Jessica Leighton, PhD, Amy H. Auchincloss, PhD, MPH, Andrew Faciano, MPH, Howard Alper, PhD, Andrea Paykin, PhD and Songmei Wu, DrPH
Source: American Journal of Public Health January 2008, Vol 98, No. 1, p. 92-97