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Table 1 Demographic data for the study population

From: The epidemiology of adverse drug events and medication errors among psychiatric inpatients in Japan: the JADE study

Factors No. of patients
  Total (n = 448)
Age ≥ 65 years, n (%) 185 (41)
Female, n (%) 247 (55)
Admitting unit, n (%)
 Acute 341 (76)
 Nursing 75 (17)
 Medical 32 (7)
Admission pathway, n (%)
 Scheduled admission 247 (55)
 Emergency admission 201 (45)
Nonresident physician in charge, n (%) 379 (85)
Involuntary admission, n (%) 186 (41.5)
Number of prescribed medications on admission, median (quartile) 6 (4–8)
Primary diagnosis,a n (%)
 Dementia 97 (21.7)
 Other organic disorders 19 (4.2)
 Mental or behavioral disorder due to substance use 48 (10.7)
 Schizophrenia and other psychotic disorders 113 (25.2)
 Mood disorders 84 (18.8)
  Depression 38 (8.5)
  Mania, Bipolar disorder 32 (7.1)
  Other mood disorders 14 (3.1)
 Neurotic, stress-related and somatoform disorders 40 (8.9)
 Anorexia 17 (3.8)
 Mental retardation 11 (2.5)
 Development disorder 12 (2.7)
 Other 7 (1.6)
  1. aDiagnoses based on the International Classification of Diseases, Tenth Revision [24]