Serology is now generally accepted as a valid noninvasive screening me
thod for the detection of Helicobacter pylori (Hp) infection, We deter
mined the frequency of serum Hp IgG antibodies in 59 children with dys
peptic complaints and 48 age-matched controls by ELISA. Positive Hp an
tibodies were found in 52.5 percent of patients and 41.7 percent of co
ntrols. The difference was not statistically significant. The percenta
ge of positivity increased with age for both patients (50% In 5-9, 51.
7% in 10-14 and 72.7% in 15-17 year age-groups) and controls (36.8% in
5-9, 50% in 10-14, 68.4% in 15-17 year age-groups). These results sug
gest that Hp infection has a relatively high prevalence among children
in our region, and increase with age, A large proportion of asymptoma
tic children also demonstrate signs of past or present exposure.