TABLE 2—

Weighted OLS and OLS Following CEM Models for Associations of Childhood Lead Exposure with Behavioral, Mental, and Physical Health Indicators at Wave 4: Birth Cohort of the Project on Human Development in Chicago Neighborhoods, Chicago, Illinois, 1995–2013

Characteristic	OLS (95% CI)	CEM (95% CI)
Impulsivity (standardized)	0.06 (0.01, 0.12)	0.08 (0.01, 0.16)
R2	0.24	0.40
Anxiety or depression (standardized)	0.09 (0.03, 0.16)	0.11 (0.01, 0.21)
R2	0.32	0.45
BMI (kg/m2)	0.37 (0.11, 0.64)	0.53 (0.23, 0.84)
R2	0.24	0.55
No.	208	81

Note. BMI = body mass index; CEM = coarsened exact matching; CI = confidence interval; OLS = ordinary least square. All coefficients significant at P < .05. All models were adjusted for child’s age at wave 4, gender, and race/ethnicity; primary caregiver’s immigrant generational status, marital status, education level, and Temporary Assistance for Needy Families receipt; the proportion of the child’s residential neighborhood that is non-Hispanic Black, Hispanic, and below the poverty line; and the proportion of the child’s residential neighborhood that was tested for lead exposure.