Normative data and psychometric properties of the Patient Health Questionnaire-9 in a nationally representative Korean population

Table 3 Correlations of depression and health-related quality of life (N = 10,759)

	Depression (Sum of the PHQ-9 scores)
Mobility	0.265**
Self-care	0.206**
Usual activities	0.296**
Pain/discomfort	0.336**
Anxiety/depression	0.475**
EQ-5D index	0.428**

ISSN: 1471-244X