@article{ref1,
title="Repetition of acute poisoning in Oslo: 1-year prospective study",
journal="British journal of psychiatry",
year="2009",
author="Heyerdahl, Fridtjof and Bjornaas, Mari A. and Dahl, R. and Hovda, Knut Erik and Nore, Anne Kathrine and Ekeberg, O. and Jacobsen, D.",
volume="194",
number="1",
pages="73-79",
abstract="BACKGROUND: The repetition of acute poisoning occurs frequently. The intention may change between episodes and many poisonings are treated outside the hospital setting. Few studies have taken this into account. AIMS: To quantify the repetition frequency regardless of the level of health care or the intention behind the poisoning, and to identify possible risk factors for repetition. METHOD: A prospective multicentre study of all acute poisonings in Oslo treated in hospital, at an out-patient clinic or by the ambulance service. Repetition was estimated using Kaplan-Meier calculations, and predictive factors were identified using Cox regression analysis. RESULTS: The estimated 1-year repetition rate was 30% (95% CI 24-35). Independent predictors of repetition were middle age (30-49 years), poisoning with opiates or sedatives, unemployment or living on social welfare, a previous suicide attempt, and a history of psychiatric treatment. Intention was not a significant predictor. CONCLUSIONS: Repetition of acute poisoning is high, irrespective of the level of healthcare and the intention behind the poisoning.<p /> <p>Language: en</p>",
language="en",
issn="0007-1250",
doi="10.1192/bjp.bp.107.048322",
url="http://dx.doi.org/10.1192/bjp.bp.107.048322"
}