Univariable and multivariable logistic regression models for the relative odds of receiving bystander CPR following an out-of-hospital cardiac arrest in LGAs in Victoria 2011–2013
| Univariable | Multivariable | |||||
|---|---|---|---|---|---|---|
| OR (95% CI) | p Value | Per cent of variance explained | OR (95% CI) | p Value | Per cent of variance explained | |
| Population aged over 65 | 1.27 (0.99 to 1.63) | 0.057 | ||||
| SEIFA* (Z-score) | 0.94 (0.86 to 1.04) | 0.238 | ||||
| Current smokers (per % increase) | 1.45 (0.99 to 2.12) | 0.059 | ||||
| High school completion (per 10% increase) | 0.87 (0.81 to 0.94) | <0.001 | 46.8 | |||
| Bachelor's degree (per 10% increase) | 0.79 (0.69 to 0.91) | 0.001 | 30.7 | |||
| Born overseas (per 10% increase) | 0.88 (0.82 to 0.94) | <0.001 | 61.1 | |||
| High-risk alcohol consumption (per 1% increase) | 1.30 (0.76 to 2.22) | 0.333 | ||||
| Obese (per 5% increase) | 1.28 (1.08 to 1.51) | 0.004 | 36.6 | |||
| Population density (ln(persons/km2)) | 0.91 (0.88 to 0.95) | <0.001 | 73.0 | 0.91 (0.88 to 0.95) | <0.001 | 73.0 |
*Index of Socio-Economic Advantage and Disadvantage.
CPR, cardiopulmonary resuscitation; LGA, local government area.