Supplemental Information for: Patterns, Variability, and Predictors of Urinary Bisphenol A Concentrations during Childhood Authors: Shaina L. Stacy, Melissa Eliot, Antonia M. Calafat, Aimin Chen, Bruce P. Lanphear, Russ Hauser, George D. Papandonatos, Sheela Sathyanarayana, Xiaoyun Ye, Kimberly Yolton, and Joseph M. Braun Number of pages: 8 Number of tables: 4 Number of figures: 1

Table of Contents: Table S1. Summary of studies investigating childhood urinary BPA concentrations. Table S2. Equations for calculating creatinine excretion (CE) rates according to Mage et al (2008). Table S3. Minimum, maximum, and percentiles (25th, 50th, and 75th) of urinary BPA (ng/mL) and creatinine (mg/dL) concentrations in HOME Study children. Table S4. Minimum, maximum, and percentiles (25th, 50th, 75th, and 95th) of estimated daily intakes of BPA based on urinary concentrations of HOME Study children (ng/kg body weight/day). Figure S1. Distribution of urinary creatinine concentrations (mg/dL) in HOME Study children ages 1-8 years (p-value for trend