The assessment of needs in psychiatric patients. Interrater reliability of the Swedish version of the Camberwell Assessment of Needs instrument and results from a cross‐sectional study

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Abstract
The assessment of needs has been put forth as an important dimension in both the planning, development and evaluation of psychiatric services. A needs assessment tool for routine use should ideally be brief, not require additional staff, be valid and reliable with respect to setting, gender and culture, and also be sensitive to changes in needs and differences in needs between subgroups of patients. In this study, the interrater reliability of the Swedish version of the Camberwell Assessment of Needs instruments (CAN), measuring needs in 22 areas, was investigated in a cross-sectional sample consisting of 119 psychiatric inpatients and outpatients. The prevalence and severity of needs, prevalence of unmet needs, as well as current help received was also investigated. The interrater reliability of the instrument was found to be good both measured as total percentages of agreement in ratings, where an agreement of 80 % or above was found in 90% of the comparisons, and as measured by Cohen's kappa. Predominant needs in the sample were in addition to clinical needs concerning psychological distress and psychotic symptoms, social needs such as the need for company, daytime activities and information concerning condition and treatment. The CAN seems to be a instrument with a high interrater reliability also when used under routine conditions as in this study. It also seems to have a high degree of feasibility with regard to different types of patients and settings and a sensitivity concerning differences in needs in subgroups of patients.