Weighted Prevalence of <i>Helicobacter pylori</i> Across Demographic Characteristics in US 21 to 59 Year-Olds, NHANES III (1988–1994).

Abbreviations: Neg, Negative; Pos, Positive. aPrevalence percentages are weighted to be representative of the US population. Row percentages add to 100 except for rounding error. bNumbers are unweighted numbers of participants. cP based on Pearson’s χ2test. dDefined as total family income divided by poverty threshold, as determined by the US Census Bureau for the year of the interview Weighted Prevalence of Helicobacter pylori Across Demographic Characteristics in US 21 to 59 Year-Olds, NHANES III (1988–1994).