Table 1 Characteristics of participants with and without acid regurgitation or heartburn
Acid regurgitation, n (%) | Heartburn, n (%) | |||
|---|---|---|---|---|
No | Yes | No | Yes | |
All participants | 4161 (98.4) | 66 (1.6) | 4120 (97.5) | 107 (2.5) |
Males | 1985 (47.7) | 23 (36.5) | 1952 (47.4) | 57 (53.3) |
Mean age (SD) | 45.6 (8.9) | 45.4 (9.3) | 45.5 (9.0) | 47.5 (8.5) |
Receiving antihypertensives | 255 (6.1) | 3 (4.6) | 255 (6.1) | 3 (2.8) |
Mean BMI (SD) | 26.7 (4.4) | 28.8 (4.6) | 26.8 (4.4) | 28.9 (5.2) |
Cigarettes | ||||
Never | 2204 (53.0) | 31 (47.0) | 2183 (53.0) | 52 (48.6) |
Ever | 987 (23.7) | 8 (12.1) | 976 (23.7) | 19 (17.8) |
Current, <20/day | 597 (14.4) | 8 (12.1) | 589 (14.3) | 16 (15.0) |
Current, = 20/day | 373 (9.0) | 19 (28.8) | 372 (9.0) | 20 (18.7) |
Alcohol (units/wk) | ||||
None | 659 (15.8) | 20 (30.3) | 651 (15.8) | 28 (26.2) |
1–9 | 1966 (47.2) | 26 (39.4) | 1955 (47.4) | 37 (34.6) |
10–19 | 883 (21.2) | 10 (15.2) | 877 (21.3) | 16 (15.0) |
≥ 20 | 653 (15.7) | 10 (15.2) | 637 (15.5) | 26 (24.3) |
Coffee (cups/day) | ||||
None | 801 (19.2) | 20 (30.3) | 792 (19.2) | 29 (27.1) |
1–4 | 2209 (53.1) | 28 (42.4) | 2182 (53.0) | 55 (51.4) |
≥ 5 | 1151 (27.7) | 18 (27.3) | 1146 (27.8) | 23 (21.5) |
Non- manual social class | 2667 (64.1) | 44 (66.7) | 2653 (64.4) | 58 (54.2) |
Mean systolic BP (SD) | 119.8 (21.7) | 119.2 (19.4) | 119.8 (21.8) | 121.0 (16.2) |
Mean diastolic BP (SD) | 75.6 (19.2) | 75.1 (10.6) | 75.6 (19.3) | 76.4 (12.0) |