AMH and amenorrhea: At age 16, the girls who reported oligo- or amenorrhoea (n = 200) had higher AMH levels compared with those reporting normal cycles (n = 200) [35.9 pmol/l (95% CI: 33.2; 38.6) versus 27.7 pmol/l (95% CI: 25.0; 30.45), P < 0.001], and adjustment for BMI, WHR or T did not change the results.