Characteristics of the selected hospitals (n=8) compared with all Belgian acute hospitals (n=109) for the registration year 2003 (Y2003)
| Selected hospitals | Belgian hospitals (Y2003) | |
| University hospitals | 2 | 7 |
| Hospitals (n) | ||
| <300 beds | 1 | 37 |
| 300–450 beds | 2 | 31 |
| >450 beds | 3 | 36 |
| Inhospital stays (n) | 193774 | 1271136 |
| Length of stay | ||
| Mean | 8 | 8 |
| P25 | 2 | 2 |
| P50 | 4 | 4 |
| P75 | 9 | 10 |
| Age | ||
| Mean | 60 | 60 |
| P25 | 48 | 46 |
| P50 | 62 | 63 |
| P75 | 75 | 75 |
| Sex (female ratio) | 48.51 | 51.14 |
| Percentage of emergency admissions | 44.54 | 44.25 |
| Secondary diagnosis (mean) | 7 | 7 |
| Most frequent major diagnostic categories (%)* | ||
| 05 Circulatory System and related condition | 18.41 | 16.36 |
| 08 Musculoskeletal System and Connective Tissue and related condition | 15.99 | 17.64 |
| 06 Digestive System and related condition | 11.67 | 12.00 |
| 01 Nervous System and related condition | 9.35 | 8.87 |
| 04 Respiratory System and related condition | 8.51 | 8.46 |
↵* Exclusion of major diagnostic categories 23, 14, 19, patients aged 18 years or older