Comparison of study sample and all National Health Service hospital deaths in England (2009)
| Characteristic | NHS population* | Study sample n=1000 | p Value |
| Age at death % | |||
| 40–59 | 7.4 | 7.0 | 0.63 |
| 60–79 | 35.8 | 34.9 | 0.55 |
| 80–89 | 40.1 | 43.2 | 0.16 |
| 90–99 | 14.9 | 14.2 | 0.54 |
| >100 | 0.5 | 0.4 | 0.15 |
| Males % | 48.7 | 46.3 | 0.13 |
| Admitting specialty % | |||
| Medical specialties | 85.0 | 85.8 | 0.48 |
| Surgical specialties | 15 | 14.2 | 0.48 |
| Type of admission % | |||
| Elective | 4.6 | 5.6 | 0.13 |
| Emergency | 95.4 | 94.4 | 0.13 |
| Admission duration in days | |||
| Median | 7.5 | 9 | 0.009 |
↵* Source: Aggregated Hospital Episode Statistics Data, 2011, derived by Clinical Effectiveness Unit, The Royal College of Surgeons of England. Copyright (c) 2011. Data used with the permission of The Health and Social Care Information Centre. All rights reserved.