Western Australia Russ Milner A/Principal Policy Officer Injury - - PowerPoint PPT Presentation

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

• f Public Health, Curtin University.

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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.

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Methodology – Definitions & Groupings

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• Multiple records were grouped as a single episode of care, and multiple

episodes of care were grouped as a single injury event.

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.

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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.

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The Big Numbers

• In 2012, there were 226,705 injury events in WA.

– 93 injuries per 1,000 population.

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• Lifetime costs were

$9.6 billion (2014 $s).

Hospital $463M (4.8%) Emergency Department $137M (1.4%) Other Medical $515M (5.4%) Ambulance $63M (0.7%) Long-term Care $307M (3.2%) Paid Productivity Loss $1,897M (19.8%) Quality of Life Loss $6,612M (64.7%)

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Costs of Injury

$9.6 billion

Western Australia

Incidence and costs of injury by severity

Injury Severity Incidence n (%) Ratea Total costs $m (%) Mean cost $ 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

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a. Rate per 1,000 population

Incidence and costs of injury by variable

Variable Incidence n (%) Ratea Total costs $m (%) Mean cost $ Total 226,705 (100.0) 93.0 9,595 (100.0) 42,322 Sexb 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

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a. Rate per 1,000 population b. Excludes 84 cases of unknown gender

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

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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

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