Table 2 Gastro‐oesophageal reflux‐type symptom prevalence and distribution of body mass index and abdominal diameter (stratified by gender and ethnicity).
| White | Black | Asian | ||||
|---|---|---|---|---|---|---|
| Women | Men | Women | Men | Women | Men | |
| Total in each category (n) | 35 307 | 28 377 | 6207 | 4233 | 1621 | 1424 |
| Heartburn prevalence (%) (95% CI) | 11.2 (10.8 to 11.6) | 14.3 (13.8 to 15.0) | 18.3 (17.2 to 19.5) | 15.5 (14.2 to 16.9) | 7.1 (5.7 to 8.6) | 7.8 (6.4 to 9.5) |
| BMI (kg/m2) | % | |||||
| <20 | 13.0 | 3.2 | 8.3 | 2.8 | 28.4 | 8.6 |
| 20–22.4 | 30.9 | 13.0 | 17.4 | 13.1 | 37.1 | 24.9 |
| 22.5–24.9 | 26.4 | 30.6 | 23.6 | 22.5 | 20.5 | 35.3 |
| 25–27.4 | 14.8 | 30.9 | 19.2 | 28.0 | 8.8 | 21.3 |
| 27.5–29.9 | 7.3 | 14.9 | 13.1 | 19.1 | 3.1 | 7.4 |
| 30–34.9 | 5.4 | 6.4 | 12.3 | 12.3 | 1.7 | 2.0 |
| >35 | 2.2 | 1.1 | 6.1 | 2.2 | 0.5 | 0.4 |
| Abdominal diameter (cm) | ||||||
| <16.3 | 14.8 | 4.3 | 6.8 | 3.3 | 33.6 | 11.2 |
| 16.3–17.9 | 18.1 | 7.0 | 10.3 | 7.2 | 22.7 | 15.3 |
| 18–19.9 | 22.9 | 16.2 | 17.9 | 14.9 | 22.4 | 25.0 |
| 20–21.9 | 19.6 | 24.0 | 21.3 | 21.8 | 12.3 | 23.2 |
| 22–23.9 | 11.4 | 21.5 | 16.6 | 20.8 | 5.2 | 14.7 |
| 24–25.9 | 6.1 | 14.3 | 11.3 | 15.6 | 1.7 | 7.0 |
| ⩾26 | 7.2 | 12.8 | 15.9 | 16.4 | 2.2 | 4.0 |
BMI, body mass index.
Totals may not equal 100%, because of rounding within each subcategory.