| Characteristics | Value (N=384) |
|---|---|
| Sex [n (%)] | |
| - Male | 124 (32.3) |
| - Female | 260 (67.7) |
| Age (year) [mean ± SD] | 45.5 ± 14.0 Occupation [n (%)] |
| - Manual labor | 151 (39.3) |
| - Intellectual labor | 149 (38.8) |
| - Non-labor | 84 (21.9) |
| BMI (kg/m2) [mean ± SD] | 22.0 ± 3.0 |
| Overweight [n (%)] | 89 (23.2) Obesity [n (%)] |
| - Class I | 52 (13.5) |
| - Class II | 4 (1.0) |
| - Class III | 0 (0) |
| Duration of the disease [median (IQR)] | 12 (6, 48) |
| GERDQ score [mean ± SD] | 8.1 ± 2.5 |
| - From 0 to 7 [n (%)] | 140 (36.5) |
| - From 8 to18 [n (%)] | 244 (63.5) |