Table 2.
Comparison of Categories of Low Molecular Weight Phthalates Concentrations | Age (year) | Predicted Difference in BMI (kg/m2) | 95% CI | Predicted Difference in Waist Circumference (cm) | 95% CI |
---|---|---|---|---|---|
High versus Low | 7 | 0.56 | −0.02–1.1 | 1.5 | −0.38–3.3 |
8 | 0.79 | 0.19–1.4 | 2.0 | 0.45–3.7 | |
9 | 0.97 | 0.32–1.6 | 2.6 | 0.90–4.3 | |
10 | 1.1 | 0.39–1.8 | 3.0 | 1.2–4.9 | |
11 | 1.2 | 0.41–1.9 | 3.4 | 1.3–5.4 | |
12 | 1.2 | 0.37–2.0 | 3.7 | 1.4–5.9 | |
13 | 1.2 | 0.28–2.1 | 3.7 | 1.3–6.5 | |
High versus Medium | 7 | 0.37 | −0.10–0.83 | 0.65 | −0.83–2.1 |
8 | 0.43 | −0.05–0.92 | 1.1 | −0.18–2.4 | |
9 | 0.49 | −0.03–1.0 | 1.6 | 0.18–2.9 | |
10 | 0.53 | −0.03–1.1 | 1.9 | 0.43–3.5 | |
11 | 0.56 | −0.05–1.2 | 2.3 | 0.63–4.0 | |
12 | 0.58 | −0.08–1.3 | 2.6 | 0.78–4.5 | |
13 | 0.59 | −0.14–1.3 | 2.91 | 0.81–5.0 |
Predicted differences (95% CI) were estimated from linear mixed effects models adjusted for age, age squared, race/ethnicity, an interaction term between age and phthalate concentration categories, an interaction term between age squared and phthalate concentration categories, and an interaction term between race/ethnicity and age.