Table 2.

Genotype Frequencies in the Study Population for At-Risk Control Subjects and Subjects with Acute Respiratory Distress Syndrome

								Genotype Frequencies
				Minor Allele Frequency					Controls	Cases
SNP	Allele	Location	Position*	All	Controls	Cases	P Value†	Genotype	(%)	(%)	HWE P Value‡
rs2664581	A > C	Exon 2	43,237,936	0.178	0.168	0.212	0.0336	AA	430 (69.81)	139 (62.05)	0.298
								AC	165 (26.79)	77 (34.38)
								CC	21 (3.41)	8 (3.57)

Definition of abbreviations: HWE, Hardy-Weinberg equilibrium; SNP, single-nucleotide polymorphism.

^*Chromosome position based on National Center for Biotechnology Information Build 36.3.

^†The probability of the Chi-square test for comparison of allele frequencies.

^‡Chi-square test for deviation from HWE in the control group.