Additional file 1: of Exposure to prenatal secondhand smoke and early neurodevelopment: Mothers and Children’s Environmental Health (MOCEH) study

Table S1. Comparison of general characteristics between children with K-BSID-II scores and children without K-BSID-II scores at 24 months. Table S2. Association between maternal urine cotinine in early pregnancy and children’s neurodevelopment at 24 months without adjusting for creatinine level. Table S3. Association between maternal urine cotinine in early pregnancy and children’s neurodevelopment at 24 months stratified by genetic polymorphism and breastfeeding behavior without adjusting for creatinine level. Figure S1. Unadjusted associations of ln-transformed maternal urinary cotinine levels and Bayley scores in infants at 24 months of age stratified by genetic polymorphism and breastfeeding behavior. (DOCX 562 kb