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Table 3a Genotypic and allelic frequencies of ACE I/D polymorphism in SARS patients who had developed or had not developed ARDS

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

  ARDS Non-ARDS
  n = 17 n = 123
Genotypic frequency
DD 2 (12%) 13 (10%)
ID 4 (23%) 61 (50%)
II 11 (65%) 49 (40%)
χ2 value = 4.361, df = 2, p = 0.113
Allelic frequency
D 8 (24%) 87 (35%)
I 26 (76%) 159 (65%)
χ2 value = 1.376, df = 1, p = 0.241