| ICD9 code | All admissions | ||
| Cause of admission# | Length of hospital stay days | ||
| All-cause admissions | 376 (100) | 6 (3–10) | |
| COPD | 490–496 | 196 (52) | 6 (3–9) |
| Other respiratory non-COPD | 460–519 except 490–496 | 46 (12) | 7 (4–10) |
| Cardiovascular | 390–459 | 38 (10) | 7 (3–14) |
| Cancer | 140–239 | 28 (7) | 6 (3–10) |
| Digestive | 520–579 | 21 (6) | 4 (3–8) |
| Genitourinary | 580–629 | 17 (5) | 6 (5–9) |
| Aftercare | V50–V69 | 7 (2) | 4 (2–8) |
| Musculoskeletal | 710–739 | 7 (2) | 8 (7–8) |
| Infectious and parasitic diseases | 001–139 | 4 (1) | 36 (7.5–80) |
| Injury and poisoning | 800–999 | 3 (0.8) | 8 (6–17) |
| Nervous system and sense organs | 320–389 | 3 (0.8) | 17 (2–25) |
| Diseases of the skin | 680–709 | 3 (0.8) | 5 (2–13) |
| Diseases of the blood | 280–289 | 1 (0.3) | 12¶ |
| Endocrine disorders | 240–279 | 1 (0.3) | 15¶ |
| Mental disorders | 290–319 | 1 (0.3) | 2¶ |
Data are presented as n (%) or median (interquartile range). There were no admission causes other than those included here. ICD9: International Classification of Diseases, 9th revision. #: ordered by frequency; ¶: n=1.