Comparison of hospitalisation characteristics between idiopathic and secondary pneumothorax
| Characteristics | Overall N=59 637 | Idiopathic N=50 596 | Secondary N=9041 | p Value |
|---|---|---|---|---|
| Age (years), mean (SD) | 38 (19) | 35 (18) | 53 (20) | <0.0001 |
| Sex, male, n (%) | 45 711 (77%) | 38 508 (76%) | 7203 (80%) | <0.0001 |
| Place of hospitalisation | <0.0001 | |||
| Surgical ward | 16 236 (27%) | 12 938 (26%) | 3298 (36%) | |
| Medical ward | 43 401 (73%) | 37 658 (74%) | 5743 (64%) | |
| Intensive or intermediate care unit | 16 057 (27%) | 12 456 (25%) | 3601 (40%) | <0.0001 |
| Surgical treatment | 14 352 (24%) | 11 398 (23%) | 2954 (33%) | <0.0001 |
| Hospitalisation duration, days, median (Q1, Q3) | 7.0 (9.0) | 6.1 (7.2) | 12.2 (14.5) | <0.0001 |
| Rehospitalisations, n (%) | 29 126 (49%) | 24 432 (48%) | 4694 (52%) | <0.0001 |