Table 2.
The partial association of the risk factors: smoking, alcohol, NSAIDs and aspirin intake with H pylori (+) or (-) peptic ulcers and gastritis
| GU (risk factor) | G2 | P-value | DU (risk factor) | G2 | P | Gastritis (risk factor) | G2 | P |
| Hp+, aspirin | 14.65 | 0.000 | Hp+, aspirin, smoking, NSAID | 4.96 | 0.026 | Hp+, aspirin, smoking, NSAID | 5.1 | 0.024 |
| Hp+, alcohol | 6.81 | 0.009 | Hp+, aspirin, alcohol | 13.53 | 0.000 | Hp+, aspirin, alcohol | 3.92 | 0.048 |
| Hp+, NSAID | 4.34 | 0.037 | Hp+, aspirin, smoking | 5.14 | 0.023 | Hp+, smoking | 4.7 | 0.03 |
| Hp-, alcohol, NSAID | 4.09 | 0.043 | Hp-, smoking, alcohol, NSAID | 10.31 | 0.001 | Hp+, aspirin | 5.81 | 0.016 |
| Hp-, NSAID | 4.07 | 0.044 | Hp-, aspirin, NSAID | 4.53 | 0.033 | Hp-, smoking, alcohol, NSAID | 9.89 | 0.02 |
| Hp-, aspirin, alcohol | 4.4 | 0.036 | Hp-, aspirin | 7.5 | 0.006 |
G2: likelihood ratio Chi-square (γ = 1); GU: gastric ulcer; DU: duodenal ulcer; Hp: H pylori; NSAID: non-steroidal anti-inflammatory drug.