Incidence and costs of injury in Western Australia Russ Milner A/Principal Policy Officer – Injury Prevention
Aim • Measure the incidence and comprehensive cost of injury in Western Australia (WA) for the most recent year data was available (2012). • Incidence and costs of injury in Western Australia 2012 (‘the Report’) released 16 December 2016. • Acknowledgement: Lead Author Dr Delia Hendrie, School of Public Health, Curtin University. 2
Methodology – Data Collection & Linkage • De-identified data from 2003-2012 were obtained from: – Death Registrations (DoHWA) – WA Hospital Morbidity Data Collection (DoHWA) – Emergency Department Data Collection (DoHWA) – Administrative Personal Injury Claims data (ICWA). • Linked by the WA Data Linkage System. • Ethical clearances ✓ ✓ ✓ . • Individual records linked = 13,243,569 . 3
Methodology – Definitions & Groupings • Multiple records were grouped as a single episode of care , and multiple episodes of care were grouped as a single injury event. 4
Methodology – Costing Injuries • Incidence-based approach using a comprehensive cost method (willingness-to-pay costs), including: – Health sector costs • Hospital costs • Emergency department costs • Other medical costs • Ambulance costs – Costs relating to longer term care needs – Loss of paid productivity – Quality of life loss. • Excluded: costs relating to property damage; workplace disruption; legal and investigation; and correctional, police and fire services. 5
Methodology – Variables • Severity (death, hospitalisation, ED presentation) • Aboriginality ([non-]Aboriginal) • Socioeconomic status (SEIFA Index) • Remoteness index (ARIA) • Health region (nine regions – No East Metro) • Alcohol aetiological fraction • Mechanism of injury (e.g. transport, fall, drowning, poisoning) • Intent of injury ([un]intentional) • Injury diagnosis groups (i.e. body part) • Body region and nature of injury. 6
The Big Numbers • In 2012 , there were 226,705 injury events in WA. – 93 injuries per 1,000 population. • Lifetime costs were $9.6 billion (2014 $s). 7
Costs of Injury Hospital $463M (4.8%) Emergency Department $137M (1.4%) $9.6 Other Medical $515M (5.4%) Ambulance $63M (0.7%) Long-term Care $307M (3.2%) billion Paid Productivity Loss $1,897M (19.8%) Quality of Life Loss $6,612M (64.7%) Western Australia 8
Incidence and costs of injury by severity Rate a Injury Severity Incidence Total costs Mean cost n (%) $m (%) $ Fatal 1,400 (0.6%) 0.6 5,839 (60.9%) 4,170,852 Hospitalisation 50,128 (22.1%) 20.6 1,746 (18.2%) 34,834 ED attendance 175,177 (77.3%) 71.9 2,009 (20.9%) 11,469 Total 226,705 (100.0%) 93.0 9,595 (100.0%) 42,322 a. Rate per 1,000 population 9
Incidence and costs of injury by variable Rate a Variable Incidence Total costs Mean cost n (%) $m (%) $ Total 226,705 (100.0) 93.0 9,595 (100.0) 42,322 Sex b Males 135,433 (59.8) 110.0 6,038 (63.0) 44,581 Females 91,188 (40.2) 75.6 3,550 (37.0) 38,934 Aboriginality Aboriginal 19,985 (8.8) 223.6 742 (7.7) 37,142 Non-Aboriginal 206,720 (91.2) 88.0 8,852 (92.3) 42,822 Alcohol Status Alcohol 62,213 (27.4) 1,946 (20.3) 31,282 Non-Alcohol 164,492 (72.6) 7,649 (79.7) 46,501 a. Rate per 1,000 population b. Excludes 84 cases of unknown gender 10
Acknowledgements/Authors • Delia Hendrie, School of Public Health, Curtin University • Ted Miller, Centre for Population Health Research, Curtin University and Pacific Institute for Research and Evaluation, Maryland US • Sean Randall, Centre for Data Linkage, Curtin University • Kate Brameld, Curtin Monash Accident Research Centre (C-MARC), Curtin University • Rachael Moorin, School of Public Health, Curtin University 11
For further enquires, please contact: Russ Milner A/Principal Policy Officer – Injury Prevention Department of Health WA Russ.Milner@health.wa.gov.au (08) 9222 2489 12
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