No GERD | GERD | |||
---|---|---|---|---|
n | % | n | % | |
BMI class ∗ | ||||
Underweight | 216 | 9.7 | 84 | 10.6 |
Normal weight | 1694 | 76.0 | 574 | 72.5 |
Overweight | 265 | 11.9 | 101 | 12.8 |
Class I obesity | 42 | 1.9 | 23 | 2.9 |
Class II obesity or more | 11 | 0.5 | 10 | 1.3 |
Smoking habit ∗ | ||||
Non smoker | 1827 | 82.0 | 597 | 75.3 |
Smoker | 401 | 18.0 | 195 | 24.7 |
Number of coffee consumed ∗ | ||||
None | 556 | 25.0 | 184 | 23.2 |
1–2 | 1131 | 50.8 | 374 | 47.2 |
3–4 | 483 | 21.7 | 210 | 26.5 |
5 or more | 58 | 2.6 | 24 | 3.0 |