Table 4.
Adjusted odds ratios for selected hospital covariates for 30-day and 365-day mortality multilevel models
| 30-day mortality | 365-day mortality | |||||
|---|---|---|---|---|---|---|
| |
AOR |
95% CI |
p-value |
AOR |
95% CI |
p-value |
|
Added into adjustedamodel separately | ||||||
| Remoteness of hospitalb | ||||||
| Major city (ref) |
1.00 |
|
<.001 |
1.00 |
|
<.001 |
| Inner regional |
1.15 |
0.94-1.41 |
|
1.16 |
0.97-1.39 |
|
| Outer regional |
1.56 |
1.26-1.94 |
|
1.54 |
1.27-1.87 |
|
| Remote/very remote |
1.83 |
1.19-2.81 |
|
1.79 |
1.22-2.61 |
|
| Average acute admissions per year |
|
|
|
|
|
|
| Less than 1200 |
2.03 |
1.57-2.62 |
<.001 |
1.98 |
1.58-2.49 |
<.001 |
| 1200-3899 |
1.72 |
1.39-2.13 |
|
1.55 |
1.28-1.88 |
|
| 3900-7084 |
1.36 |
1.08-1.70 |
|
1.32 |
1.07-1.62 |
|
| 7085-18399 |
1.14 |
0.96-1.35 |
|
1.14 |
0.97-1.34 |
|
| 18400 or more (ref) |
1.00 |
|
|
1.00 |
|
|
| On-site angiography |
|
|
|
|
|
|
| Yes |
0.74 |
0.64-0.86 |
<.001 |
0.72 |
0.63-0.83 |
<.001 |
| No (ref) | 1.00 | 1.00 | ||||
AOR, adjusted odds ratios; CI, confidence interval. Ref, referent group in the analysis.
a Adjusted for Aboriginal status, age, sex, year of admission, comorbidities, remoteness of residence, socio-economic status, and a random hospital intercept, with hospital covariates added in one at a time to the model.
b Accessibility/Remoteness Index of Australia (ARIA+) based on hospital postcode.