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Table 2 Sperm retrieval rate after x6-loupe testicular sperm extraction depending on age

From: Step-by-step loupes-mTESE in non-obstructive azoospermic men, a retrospective study

  Age ≤ 35 Age > 35 p
Positive biopsy 125 320 0,0006
Failed biopsy 185 292
SRR (%) 40.3 52.3
  1. SRR sperm retrieval rate, P Khi2 test