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Study protocol
Subsequent Injury Study (SInS): Improving outcomes for injured New Zealanders
  1. Sarah Derrett1,
  2. Helen Harcombe1,
  3. Emma Wyeth2,
  4. Gabrielle Davie1,
  5. Ari Samaranayaka3,
  6. Paul Hansen4,
  7. Gill Hall5,
  8. Ian D Cameron6,
  9. Belinda Gabbe7,
  10. Denise Powell8,
  11. Trudy Sullivan3,
  12. Suzanne Wilson1,
  13. Dave Barson1
  1. 1Injury Prevention Research Unit, Department of Preventive and Social Medicine, Dunedin School of Medicine, University of Otago, Dunedin, Otago, New Zealand
  2. 2Ngāi Tahu Māori Health Research Unit, Department of Preventive and Social Medicine, Dunedin School of Medicine, University of Otago, Dunedin, Otago New Zealand
  3. 3Department of Preventive and Social Medicine, Dunedin School of Medicine, University of Otago, Dunedin, New Zealand
  4. 4Department of Economics, University of Otago, Dunedin, Otago, New Zealand
  5. 5Accident Compensation Corporation of New Zealand, Wellington, New Zealand
  6. 6John Walsh Centre for Rehabilitation Research, Kolling Institute, University of Sydney, Royal North Shore Hospital, St Leonards, NSW, Australia
  7. 7School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
  8. 8College of Education, Health and Human Development, University of Canterbury, Christchurch, New Zealand
  1. Correspondence to Associate Professor Sarah Derrett, Injury Prevention Research Unit, Department of Preventive and Social Medicine, Dunedin School of Medicine, University of Otago, PO Box 913, Dunedin, Otago 9054, New Zealand. sarah.derrett{at}otago.ac.nz

Abstract

Background Subsequent injury (SI) is a major contributor to disability and costs for individuals and society.

Aim To identify modifiable risk factors predictive of SI and SI health and disability outcomes and costs.

Objectives To (1) describe the nature of SIs reported to New Zealand's no-fault injury insurer (the Accident Compensation Corporation (ACC)); (2) identify characteristics of people underaccessing ACC for SI; (3) determine factors predicting or protecting against SI; and (4) investigate outcomes for individuals, and costs to society, in relation to SI.

Design Prospective cohort study.

Methods Previously collected data will be linked including data from interviews undertaken as part of the earlier Prospective Outcomes of Injury Study (POIS), ACC electronic data and national hospitalisation data about SI. POIS participants (N=2856, including 566 Māori) were recruited via ACC's injury register following an injury serious enough to warrant compensation entitlements. We will examine SI over the following 24 months for these participants using descriptive and inferential statistics including multivariable generalised linear models and Cox's proportional hazards regression.

Discussion Subsequent Injury Study (SInS) will deliver information about the risks, protective factors and outcomes related to SI for New Zealanders. As a result of sourcing injury data from New Zealand's ‘all injury’ insurer ACC, SInS includes people who have been hospitalised and not hospitalised for injury. Consequently, SInS will provide insights that are novel internationally as other studies are usually confined to examining trauma registries, specific injuries or injured workers who are covered by a workplace insurer rather than a ‘real-world’ injury population.

  • Mechanism
  • Outcome of Injury
  • Risk/Determinants

https://doi.org/10.1136/injuryprev-2016-042193

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    Footnotes

    • Funding Interviews with participants were undertaken during the earlier Prospective Outcomes of Injury Study, which was funded by the Health Research Council of New Zealand (HRC 10/052; 2007–2013) and co-funded by the Accident Compensation Corporation, New Zealand (2007–2010). The Subsequent Injury Study is funded by the Health Research Council of New Zealand (HRC 15/091).

    • Competing interests None declared.

    • Ethics approval Southern Health and Disability Ethics Committee (MEC/07/07/093/AM05).

    • Provenance and peer review Not commissioned; internally peer reviewed.