ED characteristics during preintervention period (1 January 2012 to 31 March 2013) and postintervention period (1 April 2013 to 31 March 2015)
| Characteristic, mean (SD) | Before Physician Navigators | After Physician Navigators | p Value |
| No. of days | 456 | 730 | |
| No. of patients per day | 255.2 (23.9) | 274.9 (24.6) | <0.001 |
| Age (year), mean (SD) | 41.65 (2.0) | 42.6 (1.7) | <0.001 |
| Sex (% of daily volume) | |||
| Male | 48.5 | 47.9 | 0.37 |
| Female | 51.5 | 52.1 | |
| Physician hours per day | 54.4 (6.6) | 52.0 (6.0) | <0.001 |
| Physician shifts per day | 7.1 (0.8) | 6.8 (0.7) | <0.001 |
| Physician Navigators per day | 0 (0) | 3.9 (1.4) | <0.001 |
| No. of patients by CTAS score per day | |||
| 1 | 1.5 (1.3) | 1.7 (1.4) | 0.022 |
| 2 | 50.4 (10.4) | 60.0 (10.9) | <0.001 |
| 3 | 111.2 (14.8) | 118.4 (15.8) | <0.001 |
| 4 | 86.5 (16.9) | 87.9 (17.3) | 0.15 |
| 5 | 5.6 (3.92) | 5.8 (4.8) | 0.28 |
| Admissions (% of daily volume) per day | 11.3 (2.3) | 11.0 (2.9) | 0.06 |
| Direct admissions per day* | 0.28 (0.56) | 0.31 (0.57) | 0.32 |
| Transfer to another facility per day | 0.54 (0.75) | 0.67 (0.84) | 0.006 |
| Died on arrival or expired in ED per day | 0.22 (0.49) | 0.21 (0.46) | 0.78 |
*The ED admission rate for Canadian hospitals was 10.0% in 2014.
CTAS, Canadian Triage and Acuity Scale.