@article{3123153, title = "Empirical validation of the New Zealand serious non-fatal injury outcome indicator for 'all injury'", author = "Cryer, C. and Davie, G.S. and Gulliver, P.J. and Petridou, E.T. and Dessypris, N. and Lauritsen, J. and MacPherson, A.K. and Miller, T.R. and De Graaf, B.", journal = "Road Injury Prevention & Litigation Journal", year = "2018", volume = "24", number = "4", pages = "300-304", publisher = "BMJ Publishing Group", doi = "10.1136/injuryprev-2017-042463", keywords = "classification; empirical research; epidemiology; health services research; hospitalization; human; injury; injury scale; International Classification of Diseases; New Zealand; procedures; reproducibility; validation study, Empirical Research; Health Services Research; Hospitalization; Humans; International Classification of Diseases; New Zealand; Reproducibility of Results; Trauma Severity Indices; Wounds and Injuries", abstract = "Our purpose was to empirically validate the official New Zealand (NZ) serious non-fatal 'all injury' indicator. To that end, we aimed to investigate the assumption that cases selected by the indicator have a high probability of admission. Using NZ hospital in-patient records, we identified serious injury diagnoses, captured by the indicator, if their diagnosis-specific survival probability was ≤0.941 based on at least 100 admissions. Corresponding diagnosis-specific admission probabilities from regions in Canada, Denmark and Greece were estimated. Aggregate admission probabilities across those injury diagnoses were calculated and inference made to New Zealand. The admission probabilities were 0.82, 0.89 and 0.90 for the regions of Canada, Denmark and Greece, respectively. This work provides evidence that the threshold set for the official New Zealand serious non-fatal injury indicator for 'all injury' captures injuries with high aggregate admission probability. If so, it is valid for monitoring the incidence of serious injuries. © Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2018. All rights reserved. No commercial use is permitted unless otherwise expressly granted." }