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Table 1 Patients characteristics

From: Extended letrozole regimen versus clomiphene citrate for superovulation in patients with unexplained infertility undergoing intrauterine insemination: A randomized controlled trial

  Extended letrozole group
(n = 107)
Clomiphene citrate group
(n = 107)
P value
Age (years) 26.68 ± 3.51 26.13 ± 3.22 0.233
Body mass index (Kg/m 2 ) 26.08 ± 3.55 25.24 ± 4.01 0.110
Duration of infertility(years) 3.69 ± 1.88 3.40 ± 1.62 0.229
Primary infertility 70/107(65.42%) 77/107(71.96%) 0.302
Secondary infertility 37/107(34.58%) 30/107(28.04%) 0.302
Day 2 FSH(IU/L) 5.71 ± 1.95 5.51 ± 1.85 0.451
Day 2 LH(IU/L) 4.94 ± 1.89 5.14 ± 1.94 0.443
Day 2 Estradiol(pg/ml) 53.21 ± 13.45 50.47 ± 12.08 0.119
  1. Values are expressed as mean ± SD or n/n (%)