Modelo jerárquico de diagnóstico y derivación de los trastornos mentales comunes en centros de atención primaria. Una propuesta a partir del ensayo clínico PsicAP

Common mental disorders are the most prevalent in primary care (PC) centres in Spain. Unfortunately, there is a high percentage of undetected cases, due to underdiagnosis or overdiagnosis. An incorrect identification of these disorders leads to inaccurate referrals; 39% receive no treatment and only one in three patients treated follow a minimally evidence-based treatment. In the PsicAP clinical trial, the psychometric properties of the Patient Health Questionnaire (PHQ), its different modules of anxiety (GAD-7), depression (PHQ-9) and panic disorder (PHQ-PD), and an ultra-brief version derived from the PHQ for anxiety and depression (PHQ-4) have been analysed. A diagnostic and referral hierarchical model of common mental disorders is proposed based on the validation of these instruments among patients attending Spanish PC centres.