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

Table 9 Distribution of the frequency of household Helicobacter pylori infection

Number of infected persons in household	Household size
	2	3	4	5	6	7	Total households	Total number of infected persons
0	60	60	38	17	5	0	180	0
1	25	23	21	8	2	0	79	79
2	15	33	20	12	4	2	86	172
3	0	19	20	6	4	0	49	147
4	0	0	8	5	2	3	18	72
5	0	0	0	1	2	0	3	15
Total number of households	100	135	107	49	19	5	415	485
Total population	200	405	428	245	114	35	1427