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1 Queen Mary Hospital, Hammer Springs, North Canterbury, New Zealand
2 Physician Superintendent, Gogarburn Hospital, Edinburgh EH12 9BJ
A double blind controlled trial lasting 40 weeks was carried out to determine the effect of maintenance therapy with phenothiazines in a population of schizophrenics in the community. The study took place in the setting of a Community Nursing Service. All patients received capsules and injections, but were divided into two groups. Group A received oral trifluoperazine capsules (Stelazine) and placebo injections, while Group B received placebo capsules and depot fluphenazine decanoate injections (Modecate). Group A had a withdrawal rate from the trial of 48.9 per cent and a readmission rate to hospital of 26.6 per cent. Group B had a withdrawal rate of 14.3 per cent and a readmission rate of o per cent. The differences just fail to reach statistical significance at the 5 per cent level, but there was an evident trend suggesting the injection regime was superior in preventing relapse. This trend was confirmed when the differences in the BPRS scores were subjected to statistical analysis (significant at per cent level). Considerable bias operated in drawing the sample, and the ways in which this might have affected outcome have been discussed. The progress of all patients attending the hospital Modecate Clinic, from whom the trial population was drawn, was followed over the trial period. Readmission rate for those patients who were excluded from the trial because of problems associated with precarious prognosis, was 30.2 per cent.
Submitted on December 18, 1972
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