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Table 2 Study population classified based on three variables (ethnicity, presence or absence of NEC and the study genotypes)

From: The prevalence of platelet activating factor acetylhydrolase single nucleotide polymorphisms in relationship to necrotizing enterocolitis in Northwest Louisiana infants

		PAFAH Genotypes
Ethnicity	NEC	(1)	(2)	(3)	Total
Caucasian	Yes	0	1	19	20
Caucasian	No	7	36	149	192
African-American	Yes	0	7	9	16
African-American	No	22	123	197	342
Total		29	167	374	570

PAFAH Genotypes – (1) is 198 ThrThr + 379 ValVal (homozygous abnormal genotype), (2) is 198 IleThr + 379AlaVal (heterozygous abnormal genotype) and (3) is 198IleIle + 379AlaAla (homozygous normal genotype).

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