Table 4.

Histo–blood Group Antigen Phenotype Distribution in Genotype-specific Rotavirus Gastroenteritis

Histo–blood Group Antigen Phenotype	Community Controls n, %	P[8] RVGE n, % ORa (95% CI) P Value	P[4] RVGE n, % OR (95% CI) P Value	P[6] RVGE n, % OR (95% CI) P Value
Nonsecretor	33/119, 28	2/47, 4 0.12 (0.03–0.50) .004	2/38, 5 0.17 (0.04–0.75) .02	7/33, 21 1.1 (0.42–2.7) .90
Lewis negative	31/119, 26	4/47, 9 0.26 (0.09–0.80) .02	2/38, 5 0.17 (0.04–0.73) .02	13/33, 39 3.2 (1.4–7.2) .006

Abbreviation: CI, confidence interval; OR, odds ratio; RVGE, rotavirus gastroenteritis.

^aOdds ratio of nonsecretor/Lewis-negative phenotype in genotype-specific RVGE cases compared to community controls. P value determined by logistic regression.