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1 Section of Epidemiology and Biostatistics, School of Population Health, University of Auckland, New Zealand. Electronic address: b.kool@auckland.ac.nz.
2 Injury Prevention Research Unit, Department of Preventive and Social Medicine, Administrative Data for Health Research Hub, Dunedin School of Medicine, University of Otago, Dunedin, New Zealand.
1 Section of Epidemiology and Biostatistics, School of Population Health, University of Auckland, New Zealand. Electronic address: b.kool@auckland.ac.nz.
2 Injury Prevention Research Unit, Department of Preventive and Social Medicine, Administrative Data for Health Research Hub, Dunedin School of Medicine, University of Otago, Dunedin, New Zealand.