Prevalence, familial clustering, and influencing factors of Helicobacter pylori infection in Western Fujian Province households

Table 1 Relationship between general characteristics and Helicobacter pylori infection among 1427 individuals

Influencing factor	Number of respondents	Number of infected cases	Infection rate (%)	χ2 value	P value
Sex				0.003	0.957
Male	690	235	34.1
Female	737	250	33.9
Age				0.995	0.319
Adult	1208	417	34.5
Minor	219	68	31.1
Residence				0.019	0.889
Rural	529	181	34.2
Urban	898	304	33.9
Smoking				8.120	0.004
Yes	268	111	41.4
No	1159	374	32.3
Secondhand smoke exposure				22.253	0.000
Yes	519	217	41.8
No	908	268	29.5
Hand washing before meals and after defecation				4.975	0.026
Yes	1353	451	33.3
No	74	34	45.9
Gastrointestinal symptoms				28.808	0.000
Yes	509	219	43.0
No	918	266	29.0
Family history of H. pylori infection				129.322	0.000
Yes	854	390	45.7
No	573	95	16.6
Halitosis				201.576	0.000
Yes	610	333	54.6
No	817	152	18.6

P < 0.05 indicating a statistically significant difference. H. pylori: Helicobacter pylori.