Prevalence of Helicobacter pylori infection in Chinese military personnel: A cross-sectional, multicenter-based study

Table 1 Characteristics of the eligible participants

Characteristic	n	%
Total	22421	100
Sex
Female	4263	19.0
Male	18158	81.0
Age group in year
18-29	6301	28.1
30-39	8818	39.3
40-49	3487	15.6
50-59	2244	10.0
60-69	1138	5.1
70-79	433	1.9
Hospital location
Beijing	6659	29.7
Chengdu	1048	4.7
Guangzhou	1348	6.0
Lanzhou	3771	16.8
Nanjing	9595	42.8

Table 2 Overall prevalence of Helicobacter pylori infection

Parameter	Prevalence, % (n/total)	P value
Total	33.1 (7416/22421)
Sex		0.771
Male	33.1 (6014/18158)
Female	32.9 (1402/4263)
Age group in year		< 0.001
18-29	33.9 (2137/6301)
30-39	34.9 (3080/8818)
40-49	31.8 (1108/3487)
50-59	29.6 (664/2244)
60-69	26.2 (298/1138)
70-79	29.8 (129/433)
Hospital location		< 0.001
Beijing	29.0 (1929/6659)
Chengdu	37.9 (397/1048)
Guangzhou	32.3 (435/1348)
Lanzhou	44.3 (1671/3771)
Nanjing	31.1 (2984/9595)