Table I.

Clinical Characteristics of the Low-Dose FSH Step-Up Regimen

Number of patients	22
Number of treatment cycles	42
Age (years)*	32.3 ± 0.7
Duration of stimulation (days)*	12.9 ± 0.6
Number of ampoules required*	15.5 ± 1.0
Mean number of follicles (≥ 14 mm on hCG)*	1.7 ± 0.2
Number of ovulated follicles*	1.2 ± 0.1
Ovulation rate (%)	100
Pregnancy rate (per cycle; %)	16.7
Pregnancy rate (per patient; %)	31.8
Miscarriage rate (%)	0
Multiple pregnancy rate (%)	0
Incidence of severe OHSS (%)	4.8

^*Mean ± S.E.M.