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Table 3b Genotypic and allelic frequencies of ACE I/D polymorphism in SARS patients who had or had not required intensive care (ICU vs non-ICU)

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

  ICU Non-ICU
  n = 35 n = 105
Genotypic frequency
DD 3 (9%) 12 (11%)
ID 13 (37%) 52 (50%)
II 19 (54%) 41 (39%)
χ2 value = 2.489, df = 2, p = 0.288
Allelic frequency
D 19 (27%) 76 (36%)
I 51 (73%) 134 (64%)
χ2 value = 1.424, df = 1, p = 0.233