Table 4.

Multivariate Linear Regression Analysis Predicting CCMI

Variableβ Coefficient (SE)
CCMI = Chronic Care Model Index; MD = medical doctor; IPA = independent practice association; HMO = health maintenance organization.
Note: Adjusted R2 = .35.
* Possible range, 0 to 4.
† Possible range, 0 to 8.
‡ P <.05
§ P <.01
¶ P <.001
Primary health care orientation measures
Comprehensiveness
    Severe chronic illness treated in primary care index*.24§ (.09)
    Health promotions index.39 (.04)
    Health education index*.31 (.06)
Accountability
    Physician organization accepts any financial risk for hospital costs vs none.56§ (.18)
    Required outside reporting index*.22 (.06)
Continuity/longitudinality
    Primary care physician turnover rate over 5 years, %−.01 (.009)
Coordination
    Presence of electronic medical record.27 (.24)
    Presence of electronic standardized problems list.49 (.25)
Control variables
Urban/suburban vs rural/small town.002 (.20)
Age of organization, y.005 (.004)
No. of MDs.0006§ (.0002)
No. of clinic sites−.0003 (.0003)
Ownership (vs MD)
    Hospital/health plan.04 (.20)
    Other.49 (.26)
Pacific region vs all others.39 (.21)
Medical group vs IPA1.18 (.24)
Capital per MD, log.005 (.02)
County HMO penetration, %.008 (.005)