Logistic regression analysis of potential risk factors for gastro-oesophageal reflux disease in the study population
| Variable | Odds ratio (95% CI) | p Value |
|---|---|---|
| *Excess alcohol intake was defined as >28 units per week for a man and >21 units per week for a woman. | ||
| HRT, hormone replacement therapy; GI, gastrointestinal. | ||
| Age (per y) | 1.03 (1.02–1.03) | <0.001 |
| Anticholinergic drug therapy | 1.52 (1.12–2.05) | 0.006 |
| Body mass index (per unit increase) | 1.11 (1.09–1.13) | <0.001 |
| Ever smoked | 1.31 (1.10–1.54) | 0.001 |
| Excess alcohol* | 0.99 (0.99–1.00) | 0.67 |
| Sex | 0.91 (0.68–1.22) | 0.52 |
| Oral contraceptive or HRT | 0.76 (0.63–0.93) | 0.006 |
| Parental family history of upper GI disease | 1.46 (1.22–1.74) | <0.001 |
| Right handed | 1.06 (0.82–1.36) | 0.66 |