Table 2. Clinical results among de two study groups.
  Step-up (n=73)
N (positives/total, %)
Step-down (n=72)
N (positives/total, %)
p-value
Clinical pregnancy 15 (20.5) 6 (8.3) 0.037
Twin pregnancy 1 (6.7) 1 (16.7) 0.5
Miscarriages 2 (13.3) 1 (16.7) 1.0
Treatment duration (days) 8.83±4.01 7.42±2.18 0.001
Total amount of rFSH (IU) 874.5±300.75 856.5±327 0.34
Intermediate follicles (14-17mm) 1.48±2.26 2.32±2.40 0.019
Estradiol at day of rhCG (pg/ml) 640.83±501.4 845.31±564.565 0.034
Hyper response. cancelled 7 (8.21) 18 (25) 0.005
OHSS 1 (1.37) 3 (4.17) 0.363

*N=total number.