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Table 1 Characteristics of study participants

From: Sperm imprinting integrity in seminoma patients?

  Control normozoospermic Seminoma Total Seminoma normozoospermic Seminoma oligozoospermic Control oligozoospermic
N S SN SO O
Number of men 31 31 23 8 30
Age (y) 37.1 +/− 5.7a,b,e 32.2 +/− 6.5a,d 32.2 +/− 6.2b 32.4 +/− 7.8 32.9 +/− 4.1d,e
Urogenital conditions (no., %) 0 5 (16%) 2 (8%) 3 (37%) 15 (50%)
 Cryptorchidism 0 0 0 0 6
 Others* 0 5 2 3 9
Concentration (million/ml, ±SD) 66.0 +/− 72.3a,e 35.9 +/− 33.7a,d 46.3 +/− 33.3 6.1 +/− 4.9 4.5 +/− 6.4d,e
Count (million, ±SD) 257.4 +/− 335.3a,e 129.8 +/− 177.4a,d 169.8 +/− 190.7 14.9 +/− 12.3 11.6 +/− 10.2d,e
Progressive motility (%, ±SD) 46.3 +/− 13.4e 44.4 +/− 20.1d 50.3 +/− 15.9 27.5 +/− 22.3 27.9 +/− 15.3d,e
Normal morphology (%, ±SD) 31.2 +/− 17.7e 32.1 +/− 18.3d 31.1 +/− 17.7 36.0 +/− 21.9c 6.3 +/− 6.9c,d,e
Father at inclusion (%)f 81 81 89 50 68
  1. SD standard deviation, y years
  2. Significant difference between N and Sa; N and SNb; SO and Oc; O and Sd; N and Oe (p < 0.05)
  3. *Retractile testicles, varicocele, testicular torsion, mumps orchitis, and inguinal hernia
  4. fPercentage according to available data