Patient health questionnaire depression scale [PHQ-8].
depressive disorders
The PHQ-8 is one scale of the PHQ, containing 8 items that are answered on a 4-point Likert scale from 0 (“not at all”) to 3 (“nearly every day”). It was designed to assess the severity of depressive disorders. For the PHQ-8, it is assumed that values between 10 and 14 indicate a moderate severity, 15 to 19 a severe severity and 20 to 27 highest severity.