PEDIATRICS Vol. 101 No. 2 February 1998, pp. 264-271
Community Characteristics Associated With Elevated Blood Lead Levels in Children
Received Mar 6, 1997; accepted Jun 25, 1997.
,
From the Departments of * Pediatrics, and Community and
Preventive Medicine, University of Rochester School of Medicine and
Dentistry, Rochester, New York.
Objectives. To identify community
characteristics associated with children having elevated blood lead
levels (
10 µg/dL) and examine whether these characteristics can be
used to identify children with elevated blood lead levels.
Participants and Setting. A total of 20 296 children in Monroe County, New York (<6 years old) who had blood lead testing in the first 12 months after statewide mandated reporting of blood lead tests began.
Design. A logistic regression analysis was conducted to examine the association of children's blood lead levels and community characteristics by using community characteristics of 653 census block groups.
Results. The following community level variables were associated with increased risk of elevated blood lead levels in children: residence within the city [odds ratio (OR), 2.0; 95% confidence interval (CI), 1.6, 2.7]; block groups with a higher proportion of individuals of Black race (OR, 1.6; CI, 1.4, 2.0); higher screening rate (OR, 1.9; CI, 1.6, 2.4); lower housing value (OR, 1.6; CI, 1.2, 2.0); housing built before 1950 (OR, 1.5; CI, 1.3, 1.8); higher population density (OR, 1.5; CI, 1.3, 1.8); higher rates of poverty (OR, 1.4; CI, 1.2, 1.8); lower percent of high school graduates (OR, 1.3; CI, 1.1, 1.6), and lower rates of owner-occupied housing (OR, 1.2; CI, 1.0, 1.4). Community characteristics were comparable with clinic-based individual risk assessment to identify children with elevated blood lead levels.
Conclusions. These data demonstrate that community characteristics can be used to develop screening strategies to identify children who have elevated blood lead levels and shift our efforts toward identifying houses containing lead hazards before occupancy and before children are unduly exposed.
Key words: blood lead, children, screening, epidemiology, prevention, community characteristics, census block group, lead poisoning.
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