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Repeat self-harm: application of hurdle models

2010; Cambridge University Press; Volume: 196; Issue: 3 Linguagem: Inglês

10.1192/bjp.bp.109.068809

1472-1465

Jennifer Bethell, Anne E. Rhodes, Susan J. Bondy, Wendy Lou, Astrid Guttmann,

Neurotransmitter Receptor Influence on Behavior

Summary Among those who present to the emergency department for self-harm, many will repeat. Self-harm repetition is an outcome of interest in both observational and intervention studies. However, few such studies analyse the number of repeat self-harm presentations. Here, hurdle models are introduced as a potentially useful statistical method for these analyses. Emergency department data from the Province of Ontario, Canada, are used to illustrate an example of implementing hurdle models and interpreting their results.