Once patients have been discharged from hospital they will be contacted weekly for 4 weeks and then every 2 weeks until 6 months post-intervention in order to monitor their symptoms. Participants will be followed up until the end of the study (6 months after the intervention) or until they no longer meet responder criteria (MADRS score\>50% of score before they received the intervention) During the follow-ups for the first 8 weeks, the following assessments will be conducted: Montgomery-Åsberg Depression Rating Scale (MADRS) Scale of suicidal ideation (SSI) Hamilton depression rating scale (HAMD-6) Young Mania Rating Scale (YMRS) Pittsburgh insomnia rating scale (PIRS-20) Quick inventory of depressive symptomatology (QIDS) Immediate Mood Scaler (IMS-12) Beck Depression Inventory (BDI-II) C-SSRS self-report short version
Quality of Life Enjoyment and Satisfaction Questionnaire - Short Form (Q-LES-Q-SF) will be collected at one month post-intervention.
If the participant has a psychiatric diagnosis(/es) other than MDD, questionnaires measuring the symptoms associated with the participant's other psychiatric diagnosis/(es) will also be administered.
Follow-up assessments from 10-24 weeks will include:
MADRS SSI BDI-II C-SSRS self-report short version
If the participant has a psychiatric diagnosis other than MDD, questionnaires measuring the symptoms associated with the participant's other psychiatric diagnosis/(es) will also be administered.
The questionnaires that will be used to assess symptoms associated with primary psychiatric diagnoses are:
* Bipolar disorder: YMRS
* Schizoaffective disorder/ Schizophrenia/Schizophreniform disorder: positive and negative symptom scale (PANSS) and the Calgary Depression Scale for Schizophrenia (CDSS)
* Alcohol use disorder: Alcohol craving questionnaire self-report (ACQ-SR) and obsessive compulsive drinking scale (OCDS)
* Drug use disorders: Modified versions of the alcohol scales to make these relevant to the particular drug of abuse.
* Anorexia Nervosa: Yale-Brown-Cornell Eating Disorder Scale \[YBC-EDS\], Eating disorder examination questionnaire (EDE-Q)
* Bulimia Nervosa: Yale-Brown-Cornell Eating Disorder Scale \[YBC-EDS\], Eating disorder examination questionnaire (EDE-Q)
* Binge eating disorder: Young-Brown Obsessive Compulsive Scale Modified for Binge Eating \[YBOCS-BE\]
* OCD: Obsessive compulsive inventory (OCI) and Yale-Brown Obsessive Compulsive Scale (YBOCS)
* PTSD: Post-traumatic Stress Disorder Checklist-Civilian Version \[PCL-C\]
* Generalized anxiety disorder: Generalized Anxiety Disorder 7-item (GAD-7) scale
* Chronic pain: Numeric Rating Scale (NRS) for Chronic Pain
* Panic Disorder: Panic Disorder Severity Scale (PDSS)
* Somatoform Disorders: The Somatic Symptom Scale (SSS-8)
* Impulse Control disorders: Massachusetts General Hospital Hairpulling Scale (This questionnaire will be adapted depending on the urges the patient cannot control e.g. compulsive picking) BPD: The Borderline Evaluation of Severity Over Time (BEST)
At all time points, information regarding medication changes and other psychiatric treatments will be collected.
