Table 1. Demographic characteristics of patients with unexplained infertility.
  IIU+IVF n=46 IVF n=43 p-value
Female age (years) 34.1±4.27 36.2±4.08 0.019
Male age (years) 36.4±4.09 38.1±4.21 0.067
Type of infertility n (%)     0.78
Primary 27 (58.7) 24 (55.8)  
Secondary 19 (41.3) 19 (44.2)  
Time of infertility n (%)     0.028
< 1 year 8 (17.4) 8 (17.4)  
From 1 - 2 years 24 (52.2) 24 (52.2)  
> 3 years 14 (30.4) 14 (30.4)  
FSH (mUI/ml) 6.07±2.46 5.79±1.40 0.51
LH ** (mUI/ml) 4.68 (0.7-17.3) 5 (2.5-12.3) 0.42
Estradiol (pg/ml) 38.7±15.6 39.2±14.2 0.89
Prolactin (ng/dl) 14.9±5.94 14.3±5.57 0.62
AMH ** (ng/ml) 2.58 (1.04-16) 2.12 (1.10-12.3) 0.14
TSH (mUI/L) 1.59±0.51 1.62±0.6 0.79
AFC ** (n) 8 (4 - 25) 8 (3 - 23) 0.80
Seminogram **      
Density (mill/ml) 80 (32 - 288) 84 (42 - 150) 0.43
Progressive motility (%) 58 (32 - 92) 61 (30 - 76) 0.10
Morphology (%) 4 (3 - 9) 5 (3 - 7) 0.71

IUI + IVF: intrauterine insemination and in vitro fertilization, IUI: intrauterine insemination, IVF: in vitro fertilization, FSH: Follicle-stimulating hormone, LH: Luteinizing Hormone, HAM: Antimullerian hormone, TSH: Thyroid-stimulating hormone, AFC: antral follicle count.
** Results represented in median (range). The rest was calculated with mean ± standard deviation.