Predictive value of neutrophil infiltration as a marker of Helicobacter pylori infection

Table 1 Baseline demographic characteristics of subjects

	Study 1	Study 2	Study 3
No. of patients	137	168	10
Sex (male/female)	62/75	66/102	8/2
Age (average, range)	48.8 (21-79)	52.4 (21-81)	55.2 (50-77)
FD/scarred ulcer	123/14	138/30	N/A

FD: Functional dyspepsia; N/A: Not available.

Table 2 Results of study 1

Neutrophil infiltration in gastric mucosa	13C- Urea breath test
	Positive	Negative	Total
Positive	48	14	62
Negative	4	71	75
Total	52	85	137

Table 3 Results of study 3

No. of positive patients	Anti-HP IgG antibody	RUT	13C-UBT
Mild neutrophil infiltration (n = 8)	4	1	0
Moderate neutrophil infiltration (n = 2)	1	1	1

Anti-HP IgG: Anti-Helicobacter pylori immunoglobulin G; RUT: Rapid urease test; UBT: Urea breath test.