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Table 4 Association analysis between mitochondrial haplogroups and sperm characteristics in infertile men

From: Associations between male infertility and ancestry in South Americans: a case control study

  Haplogroup
H,I,J,K,N,T,U
Haplogroup
A,B,C,D
Haplogroup
L
ND
Semen analysisa
  n (%) n (%) n (%) n (%)
Sperm count
 < 15 × 106/ml 46 (66.7) 14 (50.0) 5 (62.3) 7 (35.3)
 > 15 × 106/ml 23 (33.3) 14 (50.0) 3 (37.8) 8 (64.7)
Progressive Motility
 < 32% 30 (43.5) 10 (36.4) 2 (25.0) 4 (33.3)
 > 32% 39 (56.6) 18 (64.3) 6 (75.0) 11 (66.7)
Morphology
 < 4% 46 (66.7) 16 (61.5) 6 (75.0) 6 (35.3)
  ≥ 4% 23 (66.3) 10 (38.5) 2 (25.0) 11 (64.7)
  1. Logistic regression analysis. No differences were found between haplogroups
  2. aSemen analysis according to the WHO [37]