Citation

Bethell J, Rhodes AE, Bondy SJ, Lou WY, Guttmann A. Br. J. Psychiatry 2010; 196(3): 243-244.

Affiliation

Suicide Studies Unit, St Michael's Hospital, 30 Bond Street, Toronto, Ontario, M5B 1W8, Canada. bethellj@smh.toronto.on.ca.

Copyright

(Copyright © 2010, Royal College of Psychiatry)

DOI

10.1192/bjp.bp.109.068809

PMID

20194549

Abstract

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 analyze 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.

Language: en