0 (College Station, Texas, USA) and SUDAAN version 9.0 (RTI International, Raleigh, North Carolina, USA). Prior to initiation of this study, ethical approval was obtained from the Conjoint Health Research Ethics Board at the University of Calgary. Permission for waiver of consent was obtained as this was selleck chemicals llc a retrospective review of a database and all data was made anonymous at the time of acquisition from TRACER.ResultsDuring the study period 9,808 patients had 11,663 ICU admissions, with 1,283 patients being admitted more than once. The mean patient age of the final cohort was 56.8 years; most were male (57.8%) with a mean admission APACHE II score of 23.2 (Table (Table1).1). A total of 26 Intensivists (92% male) admitted patients during the study period.

Their base specialties of training were Internal Medicine (n = 12), Pulmonary (n = 8), and AGSEM (n = 6) (Table (Table2).2). Each had completed further training in Critical Care Medicine, with 23 completing dedicated multidisciplinary critical care fellowships and three surgical critical care fellowships. There were significant differences in both the baseline characteristics of the study cohort and the subgroup of patients cared for by a single Intensivist for their entire ICU stay (n = 4,612) according to physician base specialty (Table (Table11).Table 1Patient characteristicsTable 2Physician characteristics by base specialty of trainingEntire Cohort AnalysisFor the entire cohort, ICU mortality was 17.2%, in-hospital mortality was 32.0%, median ICU LOS was 2.9 days, and median hospital LOS was 13.5 days (Table (Table3).

3). After controlling for baseline patient, physician and ICU characteristics, patients admitted by a physician from the Pulmonary group had significantly less chance of dying in the ICU (OR: 0.69; 95% CI: 0.52 to 0.94) compared to those admitted by the AGSEM group. There were no differences in patients’ ICU LOS, or hospital mortality or LOS. The Pulmonary group performed fewer invasive procedures (OR 0.96 (0.92 to 1.0)), while Intensivists in the Internal Medicine group were more likely to change patients to DNR status (OR 1.13 (1.02 to 1.24)).Table 3Outcome measures based on physician specialtySubgroup AnalysisFor the subgroup of patients cared for by one Intensivist during their entire ICU stay, ICU mortality was 19.9%, in-hospital mortality was 33.0%, median ICU LOS was 1.

7 days, and median hospital LOS was 8.9 days (Table (Table3).3). Analyses demonstrated no differences in either ICU or hospital mortality or LOS between the three groups of specialists. However, in keeping with the entire GSK-3 cohort, the Pulmonary group performed fewer procedures (OR 0.94 (0.90 to 0.99)) and the Internal Medicine group transitioned more patients to DNR status (OR 1.38 (1.09 to 1.66)).