A general practice study was carried out in 3 areas of the province of Naples, in southern Italy: Pozzuoli (PZ), a town exposed to significant seismic events in 1983, Monte Ruscello (MR), a village built to accommodate the victims of the earthquake, and Monte di Procida (MP), a town selected as a control since it is situated near PZ and was not significantly affected by the earthquake. The sociodemographic characteristics of the subjects examined were comparable in the 3 areas. The estimate of the real prevalence of psychiatric disorders according to Diamond & Lilienfeld was found to be higher in PZ and MR than in MP. Neurotic depression was the most frequent psychiatric diagnosis. The relative risk of mental disorders in subjects who reported none one or more social problems compared with those who reported none was more than 4 times greater in PZ and MR than in MP. Social problems also differed qualitatively, being more frequently related to living conditions in PZ and MR and to the primary social network in MP.

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The long-term outcome of lithium prophylaxis was explored in 43 bipolar and 36 unipolar patients who had been classified as complete responders after the first 2 years of treatment. These patients were followed up prospectively for a further period of 5 years (treatment period II), during which their psychopathological state was assessed monthly or bimonthly. Forty-nine patients completed treatment period II, 2 died during this period, 7 did not attend the unit any more and could not be traced, and 21 definitively interrupted lithium treatment before the end of the period. In 18 cases the decision to stop lithium was taken by the patient. Twenty-five patients relapsed during the treatment period II. Four relapsers had three or more episodes concentrated during the last 2 years of treatment. These results suggest that the predictive value of an initial favourable response to lithium should not be overrated, and that the impact of the drug on the long-term course of major affective disorders in ordinary clinical conditions might be less dramatic than currently believed.

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