Abbreviations
CI: Confidence Interval; CONSORT: Consolidated Standards of Reporting Trials; DSM-IV: The Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition; DSM-V: The Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition; EPDS: Edinburgh Postnatal Depression Scale ; GHQ-12: General Health Questionnaire; P value: probability value; RCT: randomised controlled trial; SD: standard deviation; STAI: The Spielberger State Trait Anxiety Inventory; WHO-5: The five-item World Health Organization Well-being Index.