Working draft: Classifications of interventions in mental health care. An expert review

Background and objectives: Specific classifications of mental health interventions have encountered many issues in their integration into a general classification of interventions. Nonetheless, there has not been any previous review on the content and structure of current classifications in relation to mental health care. This expert review aimed to compare the mental health interventions provided in a series of reference classification systems for the incorporation of mental health care into the International Classification of Health Interventions (ICHI). Methods: Twelve classifications are described with regards to the structure of the classification (unit of analysis, sections, multiaxiality, granularity) and context of utilization (purpose, descriptors, neutrality, interoperability and implementation). Results: Major problems identified include a granularity unbalance (i.e. differences in the number of codes and its specificity with other areas such as rehabilitation), unclear units of analysis (i.e. differences between procedures, interventions, packages of care and care programs), lack of clearly stated evidence-based interventions in a mental health context; and lack of a well-defined taxonomical tree. An ontology approach to the definition of the different entities involved in the throughput of mental care, including their hierarchical relationships and conceptual map, may have contributed to the failure of previous systems together with the development of systems to classify mental health interventions separate from generic health interventions. Conclusions: The present review provides additional ground for the development of the ICHI knowledge-base and highlights the importance of taxonomical disambiguation and international comparability in the development and implementation of classifications of mental care interventions

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Antidepressant use and suicide prevention: a prescription database study in the region Friuli Venezia Giulia, Italy.

OBJECTIVE: To investigate the possible impact of the increased use of antidepressants on suicide rates in the Italian region of Friuli Venezia Giulia (FVG). METHOD: Individual-based data on antidepressants in FVG from 1997 to 2006 were obtained from the regional prescription database, and linked to data on suicide for the same period obtained from the regional health information system. Age and sex were considered. RESULTS: The number of users of antidepressants increased almost fivefold during the study period. Selective serotonin reuptake inhibitors accounted for 71% of the individual users in 2006. The number of defined daily doses (DDD) per patient increased almost sevenfold. In parallel, the suicide rate decreased by one-third in men as well as in women, and in subjects under and over the age of 60 years. CONCLUSION: Suicide rates in FVG have declined in agreement with the hypothesis that the use of antidepressants may prevent suicide.