Role of Helicobacter pylori infection in pathogenesis of gastric carcinoma

Table 1 Association between cagA status and tobacco smoking[98]

	N cagA neg	N cagA pos	OR	95%CI	OR1	95%CI
Smoking status at endoscope
Non active smokers	34	31	1.00		1.00
Active smokers	8	23	3.15	1.23-8.07	4.52	1.28-15.98
Smoking status
Never	22	23	1.00		1.00
Former smoker	12	8	0.64	0.22-1.86	0.36	0.09-1.53
Current smoker	8	23	2.75	1.02-7.43	3.24	0.84-12.47
P value for linear trend				0.067		0.123

¹Adjusted for sex, age (≤ 50 years, > 50 years)[98].