Additional complaints in the primary care and outpatient populations
| Variable | Primary care (n=109) | Outpatient (n=86) | p Value |
| Vomiting | 6 | 27 | 0.000 |
| Nausea | 58 | 73 | 0.03 |
| Heartburn | 38 | 55 | 0.02 |
| Belching | 50 | 59 | 0.20 |
| Headache | 65 | 66 | 0.87 |
| Backache | 68 | 74 | 0.32 |
| Urinary problems | 19 | 26 | 0.24 |
| Nervousness | 48 | 54 | 0.46 |
| Fatigue | 80 | 85 | 0.41 |
| Total number of additional complaints (0–9)3-150 | 4.0 (3.0–6.0) | 5.5 (4.0–7.0) | 0.002 |
A χ2 test was used for all but the last variable, where a Mann-Whitney test was applied. Values given as percentages.
↵3-150 Median values are presented with interquartile ranges in parentheses.