Health Care Utilization Outcomes for Negative Binomial Models
| Characteristic | Urgent-Care Visits | Emergency Department Visits | Hospita Visits | |||
|---|---|---|---|---|---|---|
| Unadjusted, IRR (95% CI) | Adjusted, IRR (95% CI) | Unadjusted, IRR (95% CI) | Adjusted, IRR (95% CI) | Unadjusted, IRR (95% CI) | Adjusted, IRR (95% CI) | |
| Intercept | 0.68 (0.55-0.83) | 0.45 (0.23-0.88) | 0.38 (0.29-0.50) | 0.31 (0.14-0.70) | 0.15 (0.10-0.22) | 0.07 (0.02-0.25) |
| Stabilization | 1.22 (0.93-1.61) | 1.11 (0.86-1.44) | 2.32 (1.64-3.28)a | 1.74 (1.27-2.39)a | 2.10 (1.29-3.42)a | 2.01 (1.25-3.23)a |
| Outreach | 1.10 (0.81-1.48) | 1.14 (0.86-1.52) | 1.60 (1.10-2.38)a | 1.31 (1.01-1.79)a | 1.21 (0.69-2.11) | 1.06 (0.60-1.85) |
| Self-care generativity | Reference | Reference | Reference | Reference | Reference | Reference |
| Emergency visits prior | … | 1.49 (1.38-1.61)a | … | |||
| Hospital visits prior | … | … | 2.07 (1.64-2.61)a | |||
| Urgent-care visits prior | 1.38 (1.31-1.47)a | … | … | |||
| Age | 1.00 (0.99-1.01) | 0.99 (0.98-1.01) | 1.01 (0.99-1.03) | |||
| Sex | 0.79 (0.63-1.00) | 1.05 (0.80-1.36) | 1.32 (0.89-1.98) | |||
| Insured | 1.26 (1.00-1.59) | 1.37 (1.04-1.80)a | 1.39 (0.91-2.1) | |||
| Immigrant status | 1.08 (0.70-1.65) | 0.84 (0.51-1.39) | 0.53 (0.25-1.11) | |||
| Language preference | 1.09 (0.83-1.43) | 1.14 (0.82-1.58) | 1.23 (0.74-2.04) | |||
IRR = incidence rate ratio.
↵a Statistically significant result.
Note: Health care utilization outcomes—IRRs and 95% CIs for health care events over cohort follow-up, adjusted for age, sex, health insurance status, immigrant status, language preference, and prior year health care utilization. The model yields parameter estimates representing a log-count value (not shown) which are then used as an exponential of e. yielding an interpretable result (shown in table), representing the percentage of the original count units.