Table 3.

Logistic regression analysis of risk factors for eradication of H. pylori.

Risk factors	Odds ratio	Confidence interval	P value
Age >45 yr	1.67	0.78–3.58	0.186
Gender: female	3.68	1.06–5.79	0.040
Peptic ulcer	1.10	0.37–3.25	0.857
Smoking habit	0.48	0.12–1.45	0.038
Drinking habit	1.28	0.04–1.96	0.202
Treatment include NAC	1.88	0.68–3.15	0.021