Fig. 2From: Overtime trend of thyroid hormones and thyroid autoimmunity and ovarian reserve: a longitudinal population study with a 12-year follow upMean of changes within follow-ups in the first and fourth quartiles of age specific AMH assuming the interaction between time and study group after adjusting for BMI, parity, smoking, and education level. a TPO Ab+ (Thyroid peroxidase antibody positivity), b FT4 (free thyroxin level), c TSH (thyroid stimulating hormone). First quartile of AMH (Q1), fourth quartile of AMH (Q4)Back to article page