Effect of Continuity of Care and Morbidity Burden on Adjusted Hazard Ratios of Emergency Department Visits
| Predictive Variables | Subcohorta | ||
|---|---|---|---|
| Primary Care, HR (95% CI)b (n = 8,706) | Specialty Care, HR (95% CI)b (n = 6,738) | Primary and Specialty Care, HR (95% CI)b (n = 5,713) | |
| Primary care continuity (COCI) | 0.97 (0.96–0.98)c | – | 0.98 (0.96–1.00)c |
| Specialty care continuity (COCI) | – | 0.98 (0.96–1.00)c | 0.98 (0.95–1.00) |
| Morbidity burdend | 1.06 (1.04–1.08)c | 1.05 (1.03–1.07)c | 1.06 (1.03–1.08)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 emergency department visits. 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.