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Br J Psychiatry. 2007 Dec;191:548-53.

Postcards from the EDge: 24-month outcomes of a randomised controlled trial for hospital-treated self-poisoning.

Author information

  • 1Department of Consultation-Liaison Psychiatry, Locked Bag 7, Hunter Region Mail Centre, NSW 2310, Australia. Gregory.Carter@newcastle.edu.au

Abstract

BACKGROUND:

Repetition of self-poisoning is common.

AIMS:

To report the 24-month outcomes of a non-obligatory postcard intervention (plus treatment as usual) compared with treatment as usual.

METHOD:

In a randomised-controlled trial (Zelen design) conducted in Newcastle, Australia, eight postcards were sent to participants over a 12-month period. The principal outcomes were the proportion of participants with one or more repeat episodes of self-poisoning and the number of repeat episodes per person.

RESULTS:

No significant reduction was observed in the proportion of people repeating self-poisoning in the intervention group (21.2%, 95% CI 17.0-25.3) compared with the control group (22.8%, 95% CI 18.7-27.0; chi(2)=0.32, d.f.=1, P=0.57); the difference between groups was -1.7% (95% CI -7.5 to 4.2). There was a significant reduction in the rate of repetition, with an incidence risk ratio of 0.49 (95% CI 0.33-0.73).

CONCLUSIONS:

A postcard intervention maintained the halving of the rate of repetition of hospital-treated self-poisoning events over a 2-year period, although it did not significantly reduce the proportion of individuals who repeated self-poisoning.

PMID:
18055960
[PubMed - indexed for MEDLINE]
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