Class Change in the Personal Illness Hierarchy

¹ Medical Research Council Unit for Epidemiological Studies in Psychiatry, University Department of Psychiatry, Royal Edinburgh Hospital, Edinburgh, EH10 5HF; and Visiting Professor, Department of Psychology, University of Western Ontario, London, Ontario, Canada
² Medical Research Council Unit for Epidemiological Studies in Psychiatry, University Department of Psychiatry, Royal Edinburgh Hospital, Edinburgh, EH10 5HF
³ London Psychiatric Hospital, London, Ontario, Canada

Sixty-eight psychiatric in-patients who had completed the Delusions-Symptoms-States Inventory (D.S.S.I.) on admission were retested after one month. On first testing 92.6 per cent conformed to the hierarchy of classes of personal illness model, and on the second occasion 91.2 per cent. Of those who could improve, 72 per cent did so, most commonly by moving down one hierarchy class, e.g. from the Neurotic Symptoms class to the Dysthymic States class. (On the other hand only 30 per cent of the 61 patients who originally reported symptoms did not do so after one month.) Thus although it is clear that the patients as a group changed markedly, they have not departed from the hierarchy. These results indicate that either the symptoms further up the hierarchy remit before those lower in the hierarchy or they remit together. Certainly those lower in the hierarchy do not go first. It is suggested that the results would be difficult to accommodate within strict disease-entity models, and that they have different implications for both treatment and the assessment of change in current state.

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