Correlations Controlling for | ||||||||
---|---|---|---|---|---|---|---|---|
Characteristic | Bivariate Correlations | Physician Characteristics | Physician and Practice Characteristics | Physician Practice, and Office Characteristics | All Other Characteristics | |||
Compensation and Care Management | ||||||||
Salary compensation | −.03 | .05 | .02 | .04 | −.00 | |||
Productivity bonus | −.10* | −.05 | −.08 | −.02 | −.01 | |||
Financial withhold for referrals | −.19** | −.17** | −.14* | −.08 | −.08 | |||
Percentage patients in HMOs | .18** | .20** | .19** | .08 | .06 | |||
Office prior approval required to refer to specialist inside the office | .08 | .06 | −.05 | −.01 | −.04 | |||
Office prior approval required to refer to specialist outside the office | .05 | .11 | −.07 | .02 | .02 | |||
Office follows written referral guidelines | .04 | .06 | −.05 | .01 | −.01 | |||
Office follows written clinical guidelines for treating specific conditions | .05 | .09 | .08 | .03 | −.00 | |||
Office Characteristics | ||||||||
Solo practice | .09 | −.01 | .01 | .07 | ||||
Primary group | −.07 | −.05 | −.05 | .05 | ||||
Multispecialty group | .04 | .06 | .06 | .06 | ||||
Number of physicians | .09 | .11* | .08 | .02 | ||||
Private ownership | .07 | .01 | .05 | .01 | ||||
Easy to refer | .39** | .37** | .36** | .31** | ||||
Physician Practice Characteristics | ||||||||
Patient visits per hour | .03 | .04 | .03 | |||||
Administrative hours per week | −.09 | −.10 | −.09 | |||||
Percentage patients referred per month | −.06 | .01 | .02 | |||||
Percentage female patients | −.06 | −.11* | −.06 | |||||
Percentage nonwhite patients | −.02 | .11* | .09 | |||||
Percentage patients ≤18 years | −.10* | −.02 | −.02 | |||||
Percentage patients ≥65 years | .08 | .10 | .05 | |||||
Percentage patients from middle- or upper-class households | .06 | −.03 | −.01 | |||||
Physician Characteristics | ||||||||
Female | −.08 | .09 | ||||||
White | .04 | .08 | ||||||
Family practice | −.01 | .02 | ||||||
General practice | .08 | .06 | ||||||
Board-certified | .06 | .09 | ||||||
Years in practice | .18** | .08 | ||||||
Tolerance for uncertainty | .17** | .18** |
* P < .05.
** P < .01