Table 3: Univariate analysis of the risk factors for IM.

Variable

IM (+) (n = 332)

IM (-) (n = 1825)

P-value

Age 60 yr

99/332 (29.8%)

328/1825 (18.0%)

p < 0.001

BMI 28

21/332 (23.8%)

102/1825 (21.5%) 

0.662

Gender, male 

194/332 (58.45)

843/1825 (46.2%)

p < 0.001

H. pylori 

 

 

p < 0.001

(+)

221/300 (73.7%)

607/1271 (47.8%)

 

(-)

79/300 (26.3%)

664/1271 (52.2%)

 

Smoking

131/332 (39.5%)

381/1825 (20.9%)

p < 0.001

Alcohol

68/332 (20.5%)

177/1825 (9.7%)

p < 0.001

Family history of GC

47/332 (14.2%)

100/1825 (5.5%)

p < 0.001

Bile reflux

32/332 (9.6%)

124/1825 (6.8%)

0.083

Diarrhea

47/332 (14.2%)

226/1825 (12.4%)

0.419

Constipation

74/332 (22.3%)

341/1825 (18.7%)

0.130

Tea intake

66/332 (19.9%)

198/1825 (10.8%)

p < 0.001

High salt diet

115/332 (34.6%)

386/1825 (21.2%)

p < 0.001

Spicy food

128/332 (38.6%)

439/1825 (24.1%)

p < 0.001

Vitamin C

6/332 (1.8%)

22/1825 (1.2%)

0.547

Consumption of dairy products

89/332 (26.8%)

447/1825 (24.5%) 

0.479

Consumption of fruits

114/332 (34.3%)

626/1825 (34.3%)

0.873

Consumption of vegetables

258/332 (77.7%)

1542/1825 (84.5%) 

0.008

NSAIDs use

9/332 (2.7%)

39/1825 (2.1%)

0.542

Income level 3500 RMB

153/332 (46.15%)

758/1825 (41.5%)

0.192

Education above college

77/332 (23.2%)  

371/1825 (20.3%)

0.514

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Data are presented as number (%).