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Table 1 Demographic and clinical characteristic of the sample

From: A fast and safe technique for sperm preparation in ICSI treatments within a randomized controlled trial (RCT)

  A Group (n = 498) B Group (n = 536)
Female age (years) 34.07 (±3.24) 34.10 (±2.93)
Male age (years) 36.79 (±4.52) 36.9 (±3.96)
Geographical area of ​​origin
 Region 83% 82%
 Neighboring regions 10% 11%
 Outside the region 7% 7%
Aetiology female infertility
 Tubal 9,9% 10,2%
 Reduced ovarian reserve 25% 25,1%
 PCOS 10% 9,8%
 Various 10% 9,8%
 None 50% 50%
Aetiology male infertility
 OA Severe 22,5% 21,4%
 OA Moderate 17,2% 17,7%
 Various 11% 10%
 None 41,6% 43,1%
Years of infertility
 from 1 to 3 55,1% 53,8%
 from 4 to 6 28,7% 29,1%
 from 7 to 9 11,7% 11,8%
 over 9 4,5% 5,2%