Keywords
psychosomatics
diagnosis
scale
measurement
validity
anxiety
depression
Spanish
Mexicans
organic causes
instruments
Mexican adult population
culture
health síntomas
psicosomáticos
diagnóstico
escala
medición
validación
ansiedad
depresión
español
mexicanos
causas orgánicas
instrumentos
población mexicana adulta
cultura
salud
How to Cite
Abstract
Psychosomatic symptoms are physical manifestations of psychological origin that are not adequately explained by organic causes. For this reason, it is difficult to differentiate them from other conditions, so health sciences must consider their diagnosis and research on them a priority. The PHQ-15 (Patient Health Questionnaire) is an instrument that allows its diagnosis through a list of 15 psychosomatic symptoms. The purpose of this research was to validate the PHQ-15 for the Mexican adult population, obtaining indicators of reliability, construct, and convergent validity. First, the instrument was translated and culturally adapted. This version was evaluated by mental health specialists and doctors. The PHQ-15 and the Hospital Anxiety and Depression Scale (HADS) were applied to 420 Mexican participants through an online survey. A Confirmatory Factor Analysis was performed that rectified the unifactorial structure. The results showed acceptable fit indicators and a significant contribution of all the reagents to the model. The correlations between the PHQ-15 and the HADS showed a directly proportional relationship between psychosomatic symptoms with depression and anxiety, which provides evidence of convergent validity. Regarding internal consistency, it showed adequate levels of reliability.
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