Epidemiological investigation of Helicobacter pylori infection in elderly people in Beijing

Table 1 Characteristics of Helicobacter pylori infection according to sex, education level, and region

	Subjects (n)	H. pylori positive (n)	H. pylori infection rate (%)	P value
Sex				0.002
Male	469	243	51.8a
Female	621	264	42.5
Education level				0.024
Illiterate	209	112	53.5a
Literate	871	391	44.8
Region				0.199
Rural (Daxing and Huairou)	665	299	44.9
Urban (Xuanwu)	425	208	48.9
Total	1090

^aP < 0.05. H. pylori: Helicobacter pylori.

Table 2 Characteristics of Helicobacter pylori infection according to age

Age (yr)	Subjects (n)	H. pylori infection
		H. pylori positive (n)	H. pylori infection rate (%)
60-64	279	112	40.1a
65-69	263	120	45.6
70-74	209	95	45.5
75-79	171	83	48.5
80 +	168	97	57.7
Total	1090	507	46.5

^aP < 0.01. H. pylori: Helicobacter pylori.

Table 3 Occupational distribution characteristics of Helicobacter pylori infection

Occupational	Subjects (n)	H. pylori positive (n)	H. pylori infection rate (%)	P value
Mainly brain work	169	75	44.3	0.455
Light physical work	259	129	49.8
Heavy physical work	653	299	45.7
Total	1081	503

H. pylori: Helicobacter pylori.

Table 4 Relationship between Helicobacter pylori infection and dietary structure

Dietary structure	Subjects (n)	H. pylori positive(n)	H. pylori infection rate (%)	P value
Mainly vegetarian	488	223	45.6	0.821
Mainly meat	84	38	45.2
Balanced diet	505	240	47.5
Total	1077	501

H. pylori: Helicobacter pylori.

Table 5 Relationship between Helicobacter pylori infection and smoking and drinking

	Subjects (n)	H. pylori positive(n)	H. pylori infection rate (%)	P value
Consuming alcohol				0.147
Not drinking	738	330	44.7
Drinking	292	149	51.0
Quitting drinking	46	19	41.3
Total	1076	498
Smoking				0.033
Not smoking	767	346	45.1a
Smoking	210	114	54.2
Quitting smoking	104	43	41.3
Total	1081	503

^aP < 0.05. H. pylori: Helicobacter pylori.