Associations between readmission and patient-reported measures in acute psychiatric inpatients: a study protocol for a multicenter prospective longitudinal study (the ePOP-J study)

Sosei Yamaguchi; Yasutaka Ojio; Junko Koike; Asami Matsunaga; Makoto Ogawa; Hisateru Tachimori; Akiko Kikuchi; Hiroshi Kimura; Ataru Inagaki; Hiroyuki Watanabe; Yoshiki Kishi; Koji Yoshida; Takaaki Hirooka; Satoru Oishi; Yasuhiro Matsuda; Chiyo Fujii

doi:10.1186/s13033-019-0298-3

International Journal of Mental Health Systems

Table 1 Collection of data on exposures, outcomes, and other explanatory variables at each assessment point

From: Associations between readmission and patient-reported measures in acute psychiatric inpatients: a study protocol for a multicenter prospective longitudinal study (the ePOP-J study)

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 admissions^a	✓	✓	✓	✓
Length of hospitalisation^a	✓	✓	✓	✓
Type of hospitalisation (voluntary/involuntary)^a	✓	✓	✓	✓
Reasons for emergency admission^a	✓	✓	✓	✓
Unplanned discharge from index admission^a		✓
Psychiatric present status^b,c	✓
Symptoms (1 item)	✓	✓	✓	✓
Social relationships (1 item)	✓		✓	✓
Employment status	✓	✓	✓	✓
Functioning (PSP)	✓	✓	✓	✓
History of problematic behaviours^b	✓	✓	✓	✓
Risk of problematic behaviours	✓	✓	✓	✓
Weight	✓	✓	✓	✓
Body mass index	✓	✓	✓	✓
Other exposure variables
Socio-demographics
Age^a, sex, living condition, living location, social security etc.	✓
Diagnostic information^a
Psychiatric disorders^a	✓	✓
Physical disorders^a	✓	✓
Past utilisation of services
Emergency services^b	✓
Police or administrative interventions	✓
Community medical services^b	✓		✓	✓
Outpatient services^a,b	✓		✓	✓
Social and welfare services^b	✓		✓	✓
Case management or outreach services	✓	✓	✓	✓
Crisis planning^b	✓	✓	✓	✓
Prescriptions	✓	✓	✓	✓
Inpatient care during hospitalisation
Seclusion order		✓
Restraint order		✓
Electroconvulsive therapy^b		✓
Discharge plan or planning^a,b		✓
Therapies specific to hospitalisation^b,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

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