| Entire cohort of patients | Patients cared for by a single Intensivist during ICU stay | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
 | Overall (n = 9808) | Internal Medicine (n = 4146) | Pulmonary (n = 3906) | AGSEM (n = 1756) | p value* | Overall (n = 4612) | Internal Medicine (n = 1944) | Pulmonary (n = 1844) | AGSEM (n = 824) | p value* |
Mean age in years (± SD) | 56.8 (18.8) | 56.0 (18.9) | 58.4 (18.2) | 55.2 (19.7) | <0.001 | 57.1 (19.2) | 56.6 (19.4) | 58.2 (18.6) | 55.7 (19.9) | <0.01 |
Male (%) | 57.8 | 58.0 | 56.8 | 59.9 | NS | 56.0 | 55.5 | 56.0 | 57.0 | NS |
Mean admission APACHE II (± SD) | 23.2 (9.1) | 23.1 (8.9) | 23.4 (9.3) | 22.7 (8.9) | < 0.05 | 22.2 (9.4) | 22.5 (9.3) | 21.9 (9.4) | 21.8 (9.3) | NS |
Mean admission TISS (± SD) | 35.7 (13.3) | 36.3 (13.4) | 34.5 (13.1) | 36.7 (13.3) | <0.001 | 33.1 (13.3) | 33.7 (13.5) | 31.7 (12.8) | 34.4 (13.5) | <0.001 |
Admitting diagnosis (% of total admissions within each group) | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   Pulmonary | 30.7 | 30.3 | 32.4 | 28.3 | <0.01 | 28.5 | 28.6 | 29.4 | 26.8 | <0.01 |
   Cardiovascular | 23.4 | 21.0 | 27.3 | 20.3 | <0.001 | 24.3 | 21.9 | 28.0 | 22.1 | <0.001 |
   Neurologic | 13.6 | 16.7 | 10.2 | 13.9 | <0.001 | 13.6 | 16.3 | 10.2 | 15.0 | <0.01 |
   Gastrointestinal | 10.7 | 10.2 | 11.0 | 10.7 | NS | 11.3 | 11.5 | 11.4 | 10.6 | NS |
   Trauma | 9.2 | 10.2 | 5.4 | 15.2 | <0.001 | 6.5 | 7.4 | 3.9 | 10.3 | <0.001 |
   Poisoning | 5.6 | 4.6 | 6.5 | 6.1 | <0.01 | 7.7 | 6.6 | 8.5 | 8.7 | <0.01 |
   Other | 6.8 | 6.9 | 7.2 | 5.5 | <0.01 | 8.0 | 7.7 | 8.6 | 6.6 | NS |
Admit level of care (% DNR) | 9.5 | 9.4 | 9.8 | 9.1 | NS | 11.8 | 12.4 | 11.2 | 11.9 | NS |
Discharge level of care (% DNR) | 22.3 | 22.7 | 22.4 | 21.2 | NS | 21.4 | 23.6 | 19.4 | 20.5 | <0.01 |
ICU occupancy at admission (%) | 84.0 | 83.3 | 84.3 | 85.1 | <0.001 | 83.6 | 83.1 | 83.5 | 84.8 | <0.05 |