Group | Emergency department visits* | Inpatient admissions | ||||||
Median annual rate | IQR | Mean annual rate† | 95% CI | Median annual rate | IQR | Mean annual rate† | 95% CI | |
Comparison group | 2.72 | 5.49 | 4.85 | 3.96 to 5.93 | 0.43 | 1.50 | 1.05 | 0.80 to 1.39 |
Intervention group | 2.42 | 7.35 | 4.96 | 4.04 to 6.10 | 0.39 | 1.80 | 1.29 | 0.95 to 1.76 |
Combined | 2.57 | 6.93 | 4.90 | 4.25 to 5.66 | 0.41 | 1.52 | 1.17 | 0.95 to 1.44 |
Note: r ate differences between the intervention and comparison groups were not statistically significant.
*Regardless of discharge status (may have resulted in inpatient admission).
†Mean rate per person-year calculated using negative binomial regression with time at-risk exposure variable for available follow-up time (272–1064 days, censored at death or 31 December 2015).