The joint effect of the POP mixtures on A) SRS score, B) MSEL-ELC score, and C) VABS score estimated from the BKMR model. Estimates and 95% confidence intervals are shown in the figure when all exposures at particular percentiles were compared to all the congeners at their 50th percentile. Models adjusted for study site, child’s sex, maternal education, maternal race, and maternal pre-pregnancy BMI