Skip to main content
. Author manuscript; available in PMC: 2017 Jul 24.
Published in final edited form as: Epidemiology. 2016 Jul;27(4):492–499. doi: 10.1097/EDE.0000000000000489

Table 2.

Predicted differencesa in body mass index (kg/m2) and waist circumference (cm) from 7–13 years among girls (n=1017) with high (≥194 μg/g creatinine) compared to low (<78 μg/g creatinine) low molecular weight phthalates concentrations and high compared to medium (78-<194 μg/g creatinine) concentrations.

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
a

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.