Comparison of first and second UK audits
| First audit (n=4185) | Second audit (n=6750) | |
| Period of audit | 1993 (4 months, June–Sept) | 2007 (2 months, May+June) |
| Area | Four English health regions (urban/semi urban) | Whole of UK |
| Approximate total population | 16 million | 60 million |
| New (84%) | All | Inpatients (41%) | New (82%) | All | Inpatients (16%) | |
| Age (mean years) | 64.2 | 72.3 | 62.6 | 73.4 | ||
| Per cent over 80 years | 25 | 32 | 25 | 42 | ||
| Male/female (%) | 58/42 | 55/45 | 60/40 | 58/42 | ||
| Per cent endoscoped | 74 | 74 | ||||
| No cause found at endoscopy (%) | 25 | 17 | ||||
| Further bleeding reported (%) | 16 | 13 | ||||
| Surgery performed (%) | 6.7 | 1.9 | ||||
| Crude overall mortality (%) | 11 | (14) | 33 | 6.8 | (10) | 26 |
| Per cent with peptic ulcer | 36 | 32 | 36 | 40 | ||
| Mortality (%) | 8.8 | 30 | 5.8 | 22 | ||
| Per cent with varices | 4.4 | 3.9% | 11 | 8.4% | ||
| Mortality (%) | 18 | 50 | 11 | 42 | ||
| Per cent with malignancy | 3.8 | 3.4 | 3.8 | 3.6 | ||
| Mortality (%) | 38 | 35 | 15 | 33 | ||
| Length of stay (median) | 6 days | – | 5 days | – |