Patient demographics for empyema (J86) admissions from April 2008 to April 2018
| Age | All | ||
| 0–17 years | ≥18 years | ||
| Cases | 4473 | 51 057 | 55 530 |
| Age years | 4 (2–9) | 64 (51–75) | 62 (46–74) |
| Male | 2397 (53.6) | 34 945 (68.5) | 37 342 (67.3) |
| Outcomes | |||
| Hospital length of stay days | 12 (7–17) | 15 (6–28) | 14 (7–27) |
| Surgical management | 371 (8.3) | 7409 (14.5) | 7780 (14.0) |
| Inpatient mortality | 41 (0.9) | 7601 (14.9) | 7642 (13.8) |
Data are presented as n, median (interquartile range) or n (%).