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Fig. 2 | Environmental Health

Fig. 2

From: Metal biomarker mixtures and blood pressure in the United States: cross-sectional findings from the 1999-2006 National Health and Nutrition Examination Survey (NHANES)

Fig. 2

Regression tree for estimated average SBP as a product of metals biomarkers in urine and blood while adjusting for age, age2, sex, race, BMI, and smoking status; partitions are labeled (i-vii) so that the difference in SBP that is acheived with each binary split can be observed in Table 3. Concentrations of metal biomarkers are either μg/dL blood (Pb only) or μg/g creatinine (all other metals in urine)

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Environmental Health

ISSN: 1476-069X