Cannabis consuming schizophrenic patients are younger at onset, are likely to have started abuse before onset of schizophrenia and show more prominent positive symptoms than nonabusers. It has been suggested that cannabis is a risk-factor for schizophrenia. Our aim was to assess prevalence and pattern of cannabis use in 125 chronic male schizophrenic subjects and its impact on socioepidemiological and clinical variables as well as which disorder precedes the other in onset. Assessment of consumption was made with a semi-structured clinical interview. Clinical status was assessed by means of the SANS, SAPS, PANSS and BPRS scales. Cannabis consumption was found in 54 subjects (43%), 66.7% of whom started it at least three years before onset of schizophrenia. Consumers were younger and with lower negative symptoms, specially abusers and polysubstance abusers. Family history positive for psychosis was more frequent in consumers, especially when consumption started before onset of schizophrenia. Subjects whose onset of schizophrenia preceded the beginning of cannabis abuse had more positive symptoms than those who started abuse before the onset of schizophrenia. On these grounds, our sample could be subdivided into two main groups, one that uses substances to counter distressing symptoms of schizophrenia and another in which cannabis might be one of the factors predisposing to the disease; the former had less negative symptoms than nonabusers. Our data support both heterogeneity of schizophrenia and genetic susceptibility to environmental agents.

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Alexithymia was associated with increased severity of fatigue and depression.

The aim of the study was to perform a dimensional assessment of subjective stress in the Municipal Police of the City of Rome. We assessed two random samples of 590 traffic police and 590 clerical police officers of both sexes for subjective stress through the administration of the ‘Rapid Stress‐Assessment Scale’ (RSA), a self‐rated tool; subjects completed the questionnaire during a non‐working day. Subsequently, from each sample we randomly included two subsamples of 115 subjects each, to whom we administered the RSA at the beginning and at the end of their shift. Significant differences between traffic and clerical police officers were found in the RSA total score, which was higher among traffic agents. Traffic police officers were found significantly more often in the ‘high stress class’. Gender differences analysis showed higher scores among women. The analysis of the subsample of 230 persons showed a significantly greater degree of the RSA ‘depression’ cluster at the end of the shift only in traffic police officers. The assessment of over‐the‐counter drug use (NSAID, analgesics, etc.) showed that, among police officers habitually using such drugs, only the traffic police subgroup scored higher on the RSA. Our results could be taken to mean that the stress response of Municipal Police officers who work outdoors is more maladaptive than that of officers working in the office; this could be compatible with the existence of different occupational stressors between the two groups. Copyright © 2002 John Wiley & Sons, Ltd.

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