fig4

Figure 4. Bivariate exposure–response functions between each pair of maternal serum APs and children’s ASQ scores for the total population, boys, and girls, with all other serum AP indicators fixed at the 25th, 50th, and 75th percentiles. From top to bottom, the domains are: Communication, Fine motor, Gross motor, Personal-social, and Problem-solving. APs: Alkylphenols; ASQ: Ages and Stages Questionnaire; 4-N-NP: 4-nonyl-nonylphenol; 4-N-OP: 4-nonyl-octylphenol; 4-T-OP: 4-tert-octylphenol; NP: nonylphenol.