Results from linear mixed models: impact of Physician Navigators on productivity indicators for all physicians who employed Physician Navigators, and by how often Physician Navigators were used by physician subgroups
| Outcome | Without PN | With PN | Mean difference | Difference 95% CI | p Value† | |
| All MDs who used PNs (n=13) | Pt/hr | 4.49 | 5.56 | 1.07 | 0.98 to 1.16 | <0.001 |
| TAT to discharge | 164.3 | 153.7 | −10.6 | −13.2 to −8.0 | <0.001 | |
| Group 0* (n=7) | Pt/hr | 4.61 | 4.74 | 0.13 | −0.006 to 0.25 | 0.054 |
| TAT to discharge | 161.0 | 152.4 | −8.6 | −12.1 to −5.1 | <0.001 | |
| Group 1 (n=7) | Pt/hr | 4.31 | 5.33 | 1.03 | 0.92 to 1.16 | <0.001 |
| TAT to discharge | 160.3 | 156.5 | −3.8 | −6.9 to −0.7 | 0.016 | |
| Group 2 (n=6) | Pt/hr | 4.45 | 5.60 | 1.15 | 1.00 to 1.30 | <0.001 |
| TAT to discharge | 183.6 | 161.1 | −22.5 | −27.3 to −17.7 | <0.001 |
*For group 0, values for ‘without PN’ and ‘with PN’ refers to the study periods before 1 April 2013 and after 1 April 2013, respectively.
†For subgroup analysis, level of statistical significance at p<0.017 after Bonferroni correction for multiple comparisons.
PN, Physician Navigator; Pt/hr, number of patients treated per hour; TAT, turn-around time.