Clinical characteristics of peptic ulcer perforation in Korea

Table 6 Multivariate analysis for the risk factors of non-Helicobacter pylori, non-non-steroidal anti-inflammatory drugs perforated peptic ulcer compared with solely Helicobacter pylori positive perforated peptic ulcer

Variables	Unadjusted OR (95%CI)	P value	Adjusted OR (95%CI)	P value
Sex (men)	0.71 (0.24-2.09)	0.530
Age	1.04 (1.02-1.07)	0.001	1.04 (1.02-1.07)	< 0.001
BMI (kg/m2)	1.09 (0.97-1.22)	0.160
Alcohol consumption	1.73 (0.91-3.28)	0.100	2.08 (1.05-4.13)	0.040
Current smoking	1.91 (1.00-3.66)	0.050
Previous ulcer history	1.92 (0.80-4.63)	0.150
Comorbidity	1.76 (0.77-4.00)	0.180

All variables with P ≤ 0.2 by univariate analysis were analyzed by multivariate analysis. BMI: Body mass index.