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.

Randall et al.

Randall et al. BMC Public Health 2012 12:281   doi:10.1186/1471-2458-12-281

Open Data