In the National Evaluation of the HUD Lead-Based Paint Hazard Control Grant Program fourteen grantees from eleven states across the country collected environmental data for each dwelling unit and recruited children residing in the dwellings who were between six months and six years of age. At four periods of time (pre-intervention and immediate-, six months-, and twelve months post-intervention) dust lead levels and blood lead levels were assessed. For the 240 children for whom blood lead levels were determined at all four time periods, levels at six months post-intervention had declined by 1.7 ug/dl (16%) from the geometric mean level of 11.0 at pre-intervention and had declined by 2.8 ug/dl (26%) at twelve months post-intervention (p<0.0001 for both changes). Floor and window dust lead loading levels and paint lead levels were significant predictors of pre-intervention blood lead levels but were not significant factors in predicting blood lead levels at six and twelve months post-intervention. These changes are evidence that the causal pathways between environmental lead levels and blood lead exposure were substantially interrupted by the lead hazard control program. At six months post-intervention, pre-intervention blood lead level, several demographic characteristics of the children and Grantee were significant factors in the prediction of blood lead levels. Similar findings held for 12 months post-intervention. Results from similar analyses of the two and three year post-intervention will be presented. Specific analyses addressing the impact of intervention strategy on blood lead data will also be presented.
Learning Objectives: (1) To determine the effectiveness of the several lead hazard control programs in reducing blood lead levels of young children at six and twelve months post-intervention; (2) to determine the factors that are associated with blood lead levels at six and twelve months post-intervention; (3) to determine if the factors predictive of blood lead prior to intervention are still predictive of post-intervention levels
Keywords: Lead,
Presenting author's disclosure statement:
Organization/institution whose products or services will be discussed: None
I do not have any significant financial interest/arrangement or affiliation with any organization/institution whose products or services are being discussed in this session.