1. Department of Psychological Medicine School of Medicine, Faculty of Medical and Health SciencesThe University of Auckland Auckland New Zealand
2. Mental Health and Addictions ServicesCounties Manukau Health Board Auckland New Zealand
3. BiostatisticsCounties Manukau Health Board Auckland New Zealand
4. Health Intelligence and InformaticsCounties Manukau Health Board Auckland New Zealand
5. School of Biomedical Sciences, University of Otago Dunedin New Zealand
6. University of Otago Dunedin New Zealand