Table 1.
Collection of data on exposures, outcomes, and other explanatory variables at each assessment point
| Item | Time of admission (T1) | Time of discharge (T2) | 6-month follow-up (T3) | 12-month follow-up (T4) |
|---|---|---|---|---|
| Patient-reported outcomes/experiences | ||||
| Quality of life (EQ-5D-5L) | ✓ | ✓ | ✓ | ✓ |
| Perception of disabilities (SDS-J) | ✓ | ✓ | ✓ | ✓ |
| Empowerment and self-agency related scale | ✓ | ✓ | ✓ | ✓ |
| Satisfaction with care | ✓ | ✓ | ||
| Subjective relationship with family | ✓ | ✓ | ||
| Clinical and social variables | ||||
| Past hospitalisation or readmission | ||||
| Number of admissionsa | ✓ | ✓ | ✓ | ✓ |
| Length of hospitalisationa | ✓ | ✓ | ✓ | ✓ |
| Type of hospitalisation (voluntary/involuntary)a | ✓ | ✓ | ✓ | ✓ |
| Reasons for emergency admissiona | ✓ | ✓ | ✓ | ✓ |
| Unplanned discharge from index admissiona | ✓ | |||
| Psychiatric present statusb,c | ✓ | |||
| Symptoms (1 item) | ✓ | ✓ | ✓ | ✓ |
| Social relationships (1 item) | ✓ | ✓ | ✓ | |
| Employment status | ✓ | ✓ | ✓ | ✓ |
| Functioning (PSP) | ✓ | ✓ | ✓ | ✓ |
| History of problematic behavioursb | ✓ | ✓ | ✓ | ✓ |
| Risk of problematic behaviours | ✓ | ✓ | ✓ | ✓ |
| Weight | ✓ | ✓ | ✓ | ✓ |
| Body mass index | ✓ | ✓ | ✓ | ✓ |
| Other exposure variables | ||||
| Socio-demographics | ||||
| Agea, sex, living condition, living location, social security etc. | ✓ | |||
| Diagnostic informationa | ||||
| Psychiatric disordersa | ✓ | ✓ | ||
| Physical disordersa | ✓ | ✓ | ||
| Past utilisation of services | ||||
| Emergency servicesb | ✓ | |||
| Police or administrative interventions | ✓ | |||
| Community medical servicesb | ✓ | ✓ | ✓ | |
| Outpatient servicesa,b | ✓ | ✓ | ✓ | |
| Social and welfare servicesb | ✓ | ✓ | ✓ | |
| Case management or outreach services | ✓ | ✓ | ✓ | ✓ |
| Crisis planningb | ✓ | ✓ | ✓ | ✓ |
| Prescriptions | ✓ | ✓ | ✓ | ✓ |
| Inpatient care during hospitalisation | ||||
| Seclusion order | ✓ | |||
| Restraint order | ✓ | |||
| Electroconvulsive therapyb | ✓ | |||
| Discharge plan or planninga,b | ✓ | |||
| Therapies specific to hospitalisationb,d | ✓ | |||
| Outpatient care during follow-up | ||||
| Outpatient service visit within 7 days of discharge from index admission | ✓ | |||
| Regular outpatient service visits | ✓ | ✓ | ||
| Online medical examinations | ✓ | ✓ | ||
| Local social and welfare resources | ||||
| Number of social and welfare service agencies in the patient’s area of residence | ✓ | |||
EQ-5D-5L EuroQol five dimensions and five levels, PSP Personal and Social Performance scale, SDS-J Sheehan Disability Scale—Japanese version
aComponent of the READMIT index
bPossible responses are YES/NO
cPsychiatric present status include hallucinatory paranoid state, psychomotor excitement, stupor, Residual schizophrenia, depressive state, manic state, delirium, twilight state and dementia symptom
dSpecific therapies include housing services, tentative overnight stay at home before discharge, physical activities, training on the use of medications, group psycho-education, individual psycho-education, physical health management services, training on nutritional management, training on financial management, social skills training, cognitive behavioural therapy, wellness recovery action plan, cognitive remediation therapy, individual occupational therapy, family psycho-education, and services from peer-supporters