Plots show the association of day 3 FSH with the antral follicle count as the predicted mean count (black lines) with confidence interval (gray area), as modeled using the whole data set for women within the lowest 10% of fT3, TgAb-positive or TPOAb-positive women (all shown by continuous lines), or the highest 10% of fT3, TgAb-negative, or TPOAb-positive women (dotted lines). All analyses were adjusted for age, BMI, smoking, ethnicity, and infertility cause.