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Table 2 Risk factors for colonization of H. pylori in saliva and stool samples of asymptomatic patients

From: Detection and genotyping of Helicobacter pylori in saliva versus stool samples from asymptomatic individuals in Northeastern Thailand reveals intra-host tissue-specific H. pylori subtypes

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)
  1. *Only true positives (positive according to at least 2 methods) and true negatives (negative by all methods) were included in the analysis
  2. **Teeth brushing once a day was used as reference
  3. ***Multivariate analysis was adjusted for age and gender