| As the assessment of the efficacy of major depressive disorder (MDD) gradually standardized, more and more clinicians and researchers consider that MDD remission should describe not only a state of no or minimal symptoms but also restoration to normal functioning. The current cutoff of7on HAMD-17might be too high to define MDD remission.We interviewed318MDD responders with HAMD-17, Global Assessment of Functioning (GAF),177of them completed the generic quality of life inventory (GQOLI-74), and all patients were visited in a12-month follow-up. The study aims to1) to explore the residual symptoms and functional impairment of MDD patients who scored7or less on HAMD-17;2) using the ROC curve to explore the optimal cutoff on HAMD-17defining remission of MDD, and examine the validity of this cutoff point from aspects of symptom severity, functional level, and the relapse/recurrence rate. The results were lists below:1. After acute phase treatment for MDD, functional impairment was significantly associated with subsequent relapse/recurrence, with an odds ratio of2.87. even the HAMD-17scored7or less,51.0%of them also experienced functional impairment,78.8%did not restore to a premorbid state,91.9%of remitters had at least one subthreshold depressive symptoms, the most common were psychic anxiety (44.4%), sleep disturbance (52.5%), and general somatic symptoms (38.6%).2. When psychosocial functioning taken into account, a cutoff of≤3might be a more appropriate operational criterion of MDD remission. Compared to MDD patients scoring4-7on HAMD-17, patients scoring0-3had significantly better psychological functioning, social functioning and physical functioning(p<0.01), while no differences were found between patients scoring4-7and8-14; compared to4-7(16.5%) and8-14group (1.7%), the ratio that patients whose psychosocial functioning was normal among0-3group (75%) were higher (χ2=135.7, p<0.01), the ratio of restoration to a premorbid state was also higher (34.7%vs4.3%vs3.3%,χ2=50.5, p<0.01), and the relapse/recurrence rates were statistically different among0-3group (8.5%),4-7group (24.4%) and8-14group (35.6%)(χ2=18.02,p<0.01), suggesting that this operational criterion was valid.3. Patients scoring0-7on HAMD-17were heterogeneous. The0-3patients were similar with healthy controls, while4-7patients were similar with8-14group. Conclusions were listed as follows:1. After acute phase treatment for MDD, the functioning state could predict subsequent relapse/recurrence, while the residual symptoms relapse/recurrence. Even the HAMD-17scored7or less, most remitters have a few residual symptoms, and functional impairment.2. When taking functioning into account, a cutoff<3on HAMD-17may be a more appropriate operational criterion for remission of MDD. HAMD-17score drops0-3and4-7are different treatment outcomes. Symptomatic remission (HAMD-17≤7) is still the primary goal of the acute phase treatment. When maintenance phase begins, functional remission should be more valued. |