Table 2.
Demographic and clinical characteristics and outcomes following an index ICU admission in Ontario, 1 April 2002 to 31 March 2012, stratified by survivala
| Characteristic | Nonsurvivors (n = 79,937) | Survivors (n = 420,187) |
|---|---|---|
| Female sex | 44.9 | 43.3 |
| Age group, years | ||
| 18–24 | 0.84 | 3.4 |
| 25–34 | 1.5 | 4.9 |
| 35–44 | 3.3 | 8.2 |
| 45–54 | 8.2 | 14.6 |
| 55–64 | 14.1 | 19.6 |
| 65–74 | 23.0 | 22.3 |
| 75–84 | 33.3 | 20.5 |
| ≥85 | 15.8 | 6.4 |
| Charlson score | ||
| 0 | 11.0 | 30.5 |
| 1–2 | 36.0 | 41.9 |
| ≥3 | 53.0 | 27.6 |
| Most responsible diagnosis | ||
| Myocardial infraction | 19.6 | 27.1 |
| Trauma | 8.7 | 12.3 |
| Cancer/neoplasm | 11.3 | 11.4 |
| Pneumonia and other infections | 12.6 | 4.1 |
| COPD | 4.0 | 2.8 |
| Peripheral vascular disease | 2.3 | 2.9 |
| Congestive heart failure | 3.5 | 2.5 |
| Musculoskeletal system disorders | 1.0 | 2.9 |
| Diabetes | 1.0 | 1.8 |
| Liver disease | 1.1 | 0.4 |
| Renal disease | 0.3 | 0.1 |
| Dementia | 0.1 | 0.1 |
| Other digestive system | 9.4 | 8.2 |
| Other circulatory system | 5.2 | 6.5 |
| Other respiratory system | 8.8 | 3.4 |
| Other genitourinary | 2.0 | 2.0 |
| Other endocrine | 0.6 | 1.0 |
| Other | 8.6 | 10.4 |
| Income quintile | ||
| Quintile 1 (lowest) | 24.8 | 22.6 |
| Quintile 2 | 21.9 | 21.0 |
| Quintile 3 | 18.5 | 19.4 |
| Quintile 4 | 17.7 | 19.0 |
| Quintile 5 (highest) | 16.6 | 17.5 |
| Rural residence | 13.3 | 19.3 |
| Procedures | ||
| Mechanically ventilated | 70.4 | 33.4 |
| Pulmonary artery catheter | 8.3 | 10.7 |
| Bronchoscopy | 16.2 | 8.0 |
| Thoracostomy tube insertion | 6.7 | 4.5 |
| Dialysis | 10.9 | 2.9 |
| Percutaneous feeding tube insertion | 7.5 | 3.5 |
| Tracheostomy tube insertion | 6.6 | 2.7 |
| Intracranial pressure monitoring | 1.9 | 1.1 |
| Transvenous pacemaker insertion | 1.2 | 0.8 |
| Intraaortic balloon counterpulsation device insertion | 1.6 | 0.7 |
| Complications and outcomes | ||
| Pneumonia | 5.8 | 2.4 |
| Surgical site infection | 3.4 | 2.6 |
| Blood infection | 7.1 | 1.2 |
| Clostridium difficile infection | 2.0 | 0.9 |
| Duration of ventilation, days, median (IQR) | 4 (2, 9) | 2 (1, 5) |
| Cumulative ICU days | ||
| 0 to <3 days | 48.9 | 58.5 |
| 3 to <5 days | 13.3 | 18.1 |
| 5 to <7 days | 8.5 | 8.4 |
| 7 to <14 days | 15.0 | 9.5 |
| 14 to <60 days | 12.8 | 5.1 |
| 60 to <120 days | 1.2 | 0.3 |
| ≥120 days | 0.4 | 0.1 |
| Hospital length of stay, days, median (IQR) | 9 (3, 20) | 9 (5, 17) |
COPD chronic obstructive pulmonary disease, ICU intensive care unit, IQR interquartile range
Note income quintiles do not add to 100 % due to missing values for 2733 patients. Data are presented as proportions (%) unless otherwise stated. ICU days could not be determined for 15 patients
a p < 0.001 for all comparisons