Table 3.
Regression models for emergency healthcare events.
| Emergency inpatient admissions | Accident and Emergency Department visits | |||||||
|---|---|---|---|---|---|---|---|---|
| Incidence rate ratio | 95% confidence interval | P value | Incidence rate ratio | 95% confidence interval | P value | |||
| Age (per year of age) | 0.90 | 0.88 | 0.93 | <0.01 | 1.02 | 1.01 | 1.03 | <0.01 |
| Sex | ||||||||
| Male | 1 (ref) | 1 (ref) | ||||||
| Female | 0.06 | 0.03 | 0.12 | <0.01 | 0.23 | 0.18 | 0.28 | <0.01 |
| Ethnic group | ||||||||
| Bangladeshi | 1.32 | 0.86 | 2.02 | 0.20 | 0.81 | 0.60 | 1.08 | 0.15 |
| Black African | 1.52 | 1.12 | 2.05 | 0.01 | 1.00 | 0.83 | 1.21 | 0.98 |
| Black Caribbean | 1.07 | 0.69 | 1.64 | 0.77 | 0.94 | 0.79 | 1.12 | 0.49 |
| Black Other | 0.88 | 0.65 | 1.20 | 0.41 | 0.92 | 0.80 | 1.05 | 0.21 |
| Chinese | 1.07 | 0.69 | 1.67 | 0.76 | 0.58 | 0.45 | 0.74 | <0.01 |
| Indian | 0.77 | 0.60 | 0.99 | 0.04 | 0.64 | 0.57 | 0.72 | <0.01 |
| Mixed | 1.07 | 0.88 | 1.30 | 0.48 | 1.11 | 0.99 | 1.25 | 0.08 |
| Other Asian | 1.02 | 0.78 | 1.34 | 0.88 | 0.77 | 0.67 | 0.89 | <0.01 |
| Other | 0.86 | 0.72 | 1.03 | 0.11 | 0.88 | 0.80 | 0.96 | 0.01 |
| Pakistani | 0.77 | 0.58 | 1.02 | 0.07 | 0.79 | 0.70 | 0.90 | <0.01 |
| White | 1 (ref) | 1 (ref) | ||||||
| Unknown | 0.03 | 0.03 | 0.04 | <0.01 | 0.48 | 0.47 | 0.49 | <0.01 |
| Deprivation category | ||||||||
| 1 (least deprived) | 1 (ref) | 1 (ref) | ||||||
| 2 | 0.92 | 0.85 | 0.99 | 0.03 | 1.03 | 1.00 | 1.06 | 0.02 |
| 3 | 0.95 | 0.88 | 1.02 | 0.17 | 1.11 | 1.08 | 1.14 | <0.01 |
| 4 | 1.06 | 0.98 | 1.14 | 0.14 | 1.21 | 1.18 | 1.25 | <0.01 |
| 5 (most deprived) | 1.06 | 0.97 | 1.15 | 0.19 | 1.31 | 1.27 | 1.35 | <0.01 |
| Condition group | ||||||||
| No long-term condition | 1 (ref) | 1 (ref) | ||||||
| Diabetes | 6.63 | 0.96 | 45.61 | 0.06 | 2.16 | 0.57 | 8.27 | 0.26 |
| Life-limiting condition | 1.62 | 0.50 | 5.26 | 0.42 | 2.36 | 1.09 | 5.11 | 0.03 |
| Transition status | ||||||||
| Paediatric care | 1 (ref) | 1 (ref) | ||||||
| Adult care | 1.00 | 0.94 | 1.06 | 1.00 | 1.01 | 0.99 | 1.02 | 0.46 |
| Sex × age interactiona | ||||||||
| Female (per year of age) | 1.18 | 1.13 | 1.24 | <0.01 | 1.07 | 1.06 | 1.09 | <0.01 |
| Condition group × age interactiona | ||||||||
| Diabetes (per year of age) | 1.00 | 0.89 | 1.13 | 0.95 | 0.99 | 0.91 | 1.06 | 0.71 |
| Life-limiting conditions (per year of age) | 1.10 | 1.03 | 1.18 | 0.01 | 0.97 | 0.92 | 1.02 | 0.26 |
| Condition group × sex × age interactiona | ||||||||
| Diabetes and female (per year of age) | 0.99 | 0.83 | 1.18 | 0.91 | 1.11 | 0.99 | 1.25 | 0.08 |
| Life-limiting conditions and female (per year of age) | 0.85 | 0.76 | 0.95 | 0.01 | 1.03 | 0.96 | 1.11 | 0.34 |
| Condition group × transition status interactiona | ||||||||
| Diabetes and adult care | 0.83 | 0.67 | 1.01 | 0.07 | 0.93 | 0.82 | 1.06 | 0.30 |
| Life-limiting condition and adult care | 1.29 | 1.13 | 1.48 | <0.01 | 1.24 | 1.12 | 1.37 | <0.01 |
Regression model incidence rate ratio for two-level Poisson regressions on the numbers of emergency inpatient admissions and number of Emergency Department visits per cohort member per year.
aIndicates there are omitted combinations of interactions (reference groups with an incident rate ratio 1).