Anti-Helicobacter pylori immunoglobulin G (IgG) and IgA antibody responses and the value of clinical presentations in diagnosis of Helicobacter pylori infection in patients with precancerous lesions

Table 2 The detected positive rates of H. pylori for CG patients in relation to gender and age

H. pylori	Males	Females	70-77 years old	60-69 years old	50-59 years old	42-49 years old
Number	103	106	16	47	66	80
Positive (%)	64 (62.1%)	76 (71.7%)	10 (62.5%)	32 (68.1%)	39 (59.1%)	59 (73.8%)
Negative (%)	39 (37.9%)	30 (28.3%)	6 (37.5%)	15 (31.9%)	27 (40.9%)	21 (26.2%)