Amount of variation of lead, cadmium, mercury, and arsenic exposure explained by diet among children versus adults.

<p>Abbreviations: DMA, dimethylarsinic acid; MMA, monomethylarsonic acid.</p>a<p>: base model covariates include age (continuous, years), sex, body mass index (continuous, for children Z-score and kg/m² for adults), serum cotinine (continuous, µg/L), and age of home (built before 1978 versus after 1978).</p>b<p>: further adjusted for employment status (not working versus part- or full-time).</p>c<p>: dietary data includes the 49 foods and water variables as independent variables (10 g/day).</p>d<p>: further adjusted for urinary creatinine (continuous, mg/dL) to account for urinary dilution.</p>e<p>: excludes arsenobetaine and arsenocholine.</p><p>Amount of variation of lead, cadmium, mercury, and arsenic exposure explained by diet among children versus adults.