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Table 2 Prediction of sperm extraction with freezing in patients with idiopathic NOA (Group 1) or NOA with a history of cryptorchidism (Group 2)

From: Non-obstructive idiopathic azoospermia vs azoospermia with antecedents of cryptorchidism: ways and probabilities of becoming parents

All Patients
(n = 180)
Group 1
Idiopathic NOA
n = 125
Group 2
NOA with History of Cryptorchidism
n = 55
Sperm freezing No sperm freezinga p Sperm freezing No sperm freezinga p
n 34 91   29 26  
TTV (mL) 19.6 ± 6.8 18.7 ± 7.1 NS 19.7 ± 7.0 15.8 ± 6.7 NS
FSH (IU/L) 14.9 ± 8.9 17.8 ± 9.4 NS 14.6 ± 8.9 20.2 ± 10.5 NS
Inhibin B (pg/mL) 64.7 ± 77.5 48.8 ± 72.7 NS 70.0 ± 71.9 44.0 ± 60.9 NS
  1. aNegative extraction and non-freezable sperm extraction
  2. Data are presented as mean ± SD and numbers
  3. FSH follicle stimulating hormone, NOA non-obstructive azoospermia, NS not significant, TTV total testicular volume, SD standard deviation