Table 2.

Risk factors for colonization of H. pylori in saliva and stool samples of asymptomatic patients

Risk factors for H. pylori colonization	H. pylori detection* (n, %)		Crude odds ratios (95% CI)	Adjusted odds ratios*** (95% CI)
Saliva samples	Positive (n = 71)	Negative (n = 12)
≥ 40 years	60 (84.5%)	11 (91.7%)	0.50 (0.06–4.24)	0.45 (0.05–3.85
Female gender	41 (57.7%)	8 (66.7%)	0.68 (0.19–2.48)	0.91(0.27–3.10
Agriculturist	62 (87.3%)	11(91.7%)	0.63(0.07–5.45)	0.59 (0.07–5.25)
Teeth brushing ≥ 2-time a day**	69 (97.2%)	11 (91.7%)	3.13 (0.26–37.58)	4.26 (0.29–63.04)
Stool samples	Positive (n = 70)	Negative (n = 19)
≥ 40 years	61 (87.1%)	16 (84.2%)	0.80 (0.16–4.04)	0.66 (0.13–3.34)
Female gender	40 (56.3%)	14 (73.7%)	0.48 (0.15–1.47)	0.70 (0.25–1.96)
Agriculturist	64 (91.4%)	15 (78.9%)	2.00 (0.45–8.88)	3.27 (0.77–13.97)
Teeth brushing ≥ 2-time a day**	68 (97.1%)	18 (94.7%)	1.76 (0.15–20.51)	2.62 (0.20–34.82)

*Only true positives (positive according to at least 2 methods) and true negatives (negative by all methods) were included in the analysis

**Teeth brushing once a day was used as reference

***Multivariate analysis was adjusted for age and gender