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Observational Study
Copyright: ©Author(s) 2026.
World J Gastroenterol. Dec 28, 2026; 32(48): 122494
Published online Dec 28, 2026. doi: 10.3748/wjg.122494
Table 10 Fit goodness test for the binomial distribution of family clusters in Helicobacter pylori-infected households
Number of cases per household
Observed frequency (A)
Theoretical frequency (T)
Residual (A-T)
0180110.769.3
179168.4-89.4
28698.9-12.9
34930.418.6
≥ 4216.714.3


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