Table 2.
30-day mortality models | ||||
---|---|---|---|---|
Model |
Adjusted for: |
OR |
95% CI |
p-value |
1A |
Hospital of admissiona |
0.61 |
0.48-0.78 |
<.001 |
|
Individual covariates |
|
|
|
2A |
+ Age group, sex, year of admission |
1.07 |
0.83-1.37 |
.612 |
3A |
+ Comorbid conditionsb |
0.98 |
0.76-1.27 |
.886 |
4A |
+ Remoteness of residencec |
0.95 |
0.73-1.24 |
.728 |
5A |
+ Socio-economic statusd |
0.95 |
0.73-1.23 |
.684 |
|
Hospital covariatese |
|
|
|
6A |
+ Remoteness of hospitalc |
0.94 |
0.72-1.22 |
.617 |
7A |
+ Average acute admissions per year (- Remoteness of hospital) |
0.95 |
0.73-1.23 |
.676 |
8A |
+ On-site angiography (- Average acute admissions per year) |
0.94 |
0.73-1.23 |
.665 |
365-day mortality models | ||||
Model |
Adjusted for: |
OR |
95% CI |
p-value |
1B |
Hospital of admissiona |
0.64 |
0.53-0.77 |
<.001 |
|
Individual covariates |
|
|
|
2B |
+ Age group, sex, year of admission |
1.34 |
1.10-1.63 |
.003 |
3B |
+ Comorbid conditionsb |
1.12 |
0.91-1.38 |
.282 |
4B |
+ Remoteness of residencec |
1.11 |
0.90-1.37 |
.317 |
5B |
+ Socio-economic statusd |
1.11 |
0.90-1.36 |
.345 |
|
Hospital covariatese |
|
|
|
6B |
+ Remoteness of hospitalc |
1.09 |
0.89-1.35 |
.401 |
7B |
+ Average acute admissions per year (- Remoteness of hospital) |
1.11 |
0.90-1.36 |
.336 |
8B | + On-site angiography (- Average acute admissions per year) |
1.10 | 0.90-1.36 | .350 |
OR, odds ratio; CI, confidence interval.
a Hospital of admission adjusted for in a two-level random intercept model with patients nested within hospitals.
b Comorbid conditions with one-year look-back, including comorbidities on current admission and any admissions in the previous year.
c Accessibility/Remoteness Index of Australia (ARIA+) based on statistical local area of residence for individuals or hospital postcode for hospitals.
d Socio-Economic Indices for Areas (SEIFA) Index of Relative Socio-Economic Disadvantage population quintiles based on statistical local area of residence.
e Hospital covariates added one at a time to the adjusted models.