The SPHERE 12 (Somatic and Psychological HEalth REport) is a 12-item, self-rated tool to screen for anxiety, depression, and somatisation in primary care. The SPHERE 12 is a shortened version of the SPHERE 34 (Hickie et al 2001a), which was derived from the General Health Questionnaire (GHQ-30), the Schedule of Fatigue and Anergia, the Illness, Fatigue and Irritability Questionnaire, and the Diagnostic Interview Schedule for somatisation. Six items of the SPHERE 12 assess psychological health (PSYCH subscale) and six assess physical symptoms and fatigue (SOMA subscale).
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Berryman et al. (2012) studied this question.
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