Table 2.

Linear Regression Models of Interprofessional Collaboration

Model 1Model 2Model 3Model 4
PCP demographics
 Female4.324*** (1.472)2.259*** (0.630)5.041*** (1.413)1.898*** (0.608)
 Years since graduation−0.144* (0.0743)−0.0254 (0.0338)−0.171** (0.0659)<0.001 (0.0315)
Provider type
 Nurse practitioner3.262* (1.838)−1.665** (0.815)
 Physician assistant−3.790* (2.101)−0.902 (0.902)
PCP’s patients
 Average patient age (years)0.472*** (0.0488)0.154*** (0.0466)0.520*** (0.0469)0.163*** (0.0460)
Controlling for clinic?NoYesNoYes
Observations324306324306
R20.3320.8980.3100.896
  • Abbreviation: PCP, primary care provider.

  • The reference category for provider type is physician.

  • Standard errors in parentheses ***P < .01, **P < .05, *P < .1.