Table 2 Distribution of wild type and polymorphic alleles of e-NOS intron 4 VNTRs polymorphism across cases and controls.

From: A multicenter case–control study of the effect of e-nos VNTR polymorphism on upper gastrointestinal hemorrhage in NSAID users

Genotype

Cases (N = 325)

N (%)

Controls (N = 744)

N (%)

Wild type

homozygous “b” (420 bp/420 bp)

247 (76%)

550 (73.9%)

Genetic variation

heterozygous “ab” (393 bp/420 bp)

67 (20.6)

167 (22.4%)

homozygous “a” (393 bp/393 bp)

8 (2.5%)

23 (3.1%)

Othersa

3 (0.9%)

4 (0.5%)

  1. a Others group included the following genetic variations: 420 bp/447 bp (3 cases and 2 controls), 366 bp/420 bp (1 control) and 370 bp/420 bp (1 control).
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