Effect of Continuity of Care and Morbidity Burden on Adjusted Hazard Ratios of Inpatient Admissions
| Predictive Variable | Subcohorta | ||
|---|---|---|---|
| Primary Care, HRb (95% CI) (n = 8,863) | Specialty Care, HRb (95% CI) (n = 6,724) | Primary and Specialty Care, HRb (95% CI) (n = 5,660) | |
| Primary care continuity (COCI) | 0.97 (0.96–0.99)c | – | 0.99 (0.97–1.01) |
| Specialty care continuity (COCI) | – | 0.95 (0.93–0.98)c | 0.94 (0.92–0.97)c |
| Morbidity burdend | 1.12 (1.10–1.14)c | 1.09 (1.06–1.11)c | 1.09 (1.06–1.12)c |
COCI = Continuity of Care Index27; HR = hazard ratio.
↵a Three or more visits of any type required for subcohort membership.
↵b Adjusted for age, sex, race/ethnicity, socioeconomic status, and prior year primary care, specialty care, and baseline inpatient admissions. HR is for each 0.1-unit increase in COCI.
↵c Significant at P ≤.05.
↵d According to the Quan-adapted Elixhauser comorbidity index.28 HR is for 1-unit increase in morbidity score.