This is a multi-center cross-sectional study. Patients with MDD who received medication treatment and achieved remission for at least 8 weeks will be enrolled. For all the participants, demographic information will be collected; clinical symptoms, cognitive function, occupational/study ability, and quality of life will be evaluated by using 17-items HAMD, PHQ-9, HAMA, PSQI, SHAPS, HCL-32, SDS, LEAPS, QOL-6, PFQ and THINC-it toolkit.
