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