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Table 2 Genotypic and allelic frequencies of ACE I/D polymorphism in SARS patients and control subjects

From: Absence of association between angiotensin converting enzyme polymorphism and development of adult respiratory distress syndrome in patients with severe acute respiratory syndrome: a case control study

  SARS cases Controls
  n = 140 n = 326
Genotypic frequency
DD 15 (11%) 43 (13%)
ID 65 (46%) 133 (41%)
II 60 (43%) 150 (46%)
χ2 value = 1.43, df = 2, p = 0.489
Allelic frequency
D 95 (34%) 219 (34%)
I 185 (66%) 433 (66%)
χ2 value = 0.000624, df = 1, p = 0.980