Patient characteristics in the groups studied
| n | Age (years)* | Sex (M/F) | cagA +/− | |
|---|---|---|---|---|
| *Values are expressed as mean (SD). | ||||
| Smoker | 22 | 50.8 (4.1) | 13/9 | 14/8 |
| Non-smoker | 24 | 47.2 (2.2) | 10/14 | 13/11 |
| Drinker | 14 | 45.7 (2.8) | 9/5 | 9/5 |
| Non-drinker | 32 | 50.5 (2.9) | 14/18 | 18/14 |