Childhood chronic gastritis and duodenitis: Role of altered sensory neuromediators

Table 1 Demographic characteristics of the patients

Patient characteristics	Study group		Control group	P value
n	52		30
Age (yr)
mean	12.47 ± 4.087		11.6 ± 4.065
median	13.5		12.6	0.847
range	6-17		6-17
Sex (F/M)	29/23		17/13	0.981
Grading of gastritis (Sydney class, activity score)	S1	S2	Normal gastric mucosa; 14 patients	-
Mild (Grade I)	-	44
Moderate (Grade II)	24	8	Grade I gastritis; 16 patients
Severe (Grade III)	28	-
H. pylori	23		6	0.027

H. pylori: Helicobacter pylori.