No with/ without reflux | Age and sex adjusted OR (95% CI) | Multivariately adjusted OR (95% CI) | |
Maximum BMI | |||
BMI <25 | 50/250 | 1.00 (reference) | 1.00 (reference) |
BMI 25–30 (overweight) | 63/328 | 0.94 (0.62–1.42) | 0.95 (0.62–1.44) |
BMI >30 (obesity) | 22/103 | 1.06 (0.61–1.86) | 1.13 (0.64–2.01) |
BMI as continuous variable | 135/685 | 1.00 (0.95–1.06)2-153 | 1.01 (0.95–1.07)2-153 |
BMI 20 years before interview | |||
BMI <25 | 94/479 | 1.00 (reference) | 1.00 (reference) |
BMI ⩾25 (overweight or obesity) | 41/202 | 0.98 (0.65–1.49) | 1.01 (0.67–1.54) |
BMI as continuous variable | 135/685 | 1.02 (0.95–1.09)2-153 | 1.03 (0.96–1.10)2-153 |
BMI at age 20 | |||
BMI <25 | 125/598 | 1.00 (reference) | 1.00 (reference) |
BMI ⩾25 (overweight or obesity) | 10/83 | 0.55 (0.27–1.09) | 0.54 (0.27–1.09) |
BMI as continuous variable | 135/685 | 1.00 (0.93–1.08)2-153 | 1.00 (0.93–1.09)2-153 |
↵2-150 Body mass index was calculated as body weight divided by the square of body height in metres (kg/m2).
↵2-151 Gastro-oesophageal reflux was defined as recurrent and regular heartburn and/or regurgitation occurring at least once a week.
↵2-152 Adjustments were made for age, sex, tobacco smoking, alcohol use, meal sizes, and physical activity.
↵2-153 Odds ratio per unit increase in BMI.