Characteristics and Clinical Findings of Study Children Categorized by Exposure Groups.

Abbreviations: IQR: Interquartile range; BMI: Body mass index; TSH: Thyroid-stimulating hormone; T4: Thyroxine; FT4: Free thyroxine; T3: Triiodothyronine; E2: Estradiol; LH: Luteinizing hormone; FSH: Follicle-stimulating hormone; AST: Aspartate aminotransferase; ALT: Alanine aminotransferase; BUN: Blood urea nitrogen; HPF: High power field.1Kruskal-Wallis test for continuous variables and Fischer’s exact test for category variables.2One missing data.3Two missing data.4Six missing data.5Mann-Whitney U test: High exposure group vs. no exposure group, P = 0.011; low exposure group vs. no exposure group, P = 0.047; trend test, P = 0.001.6Fischer’s exact test: High exposure group vs. no exposure group, P = 0.174; low exposure group vs. no exposure group, P = 0.676; trend test, P = 0.013.