Table 1. Basal characteristics of 145 patients with unexplained infertility. Women were randomized for step-up or step-down protocol.
  Step-down
(n=72)
(Mean ± SD*)
Step-up
(n=73)
(Mean ± SD)
Age (years) 34.69±3.87 34.73±3.81
FSH (mIU/ml) 6.79±1.57 7.00±1.75
LH (mIU/ml) 6.20±2.21 6.63±2.15
Estradiol (pg/ml) 48.72±23.65 53.77±36.18
AMH (mcg/L) 3.32±3.20 2.54±2.59
Inhibin B  (pg/ml) 87.78±101.16 68.61±49.58
Right antral follicles 5.68±1.99 6.42±2.65
Left antral follicles 6.32±3.09 6.48±3.21

* SD=standard deviation.