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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
  1. 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).