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Table 1 Sample characteristics

From: The association between mood state and chronobiological characteristics in bipolar I disorder: a naturalistic, variable cluster analysis-based study

  Mean ± standard deviation or N (%)
Demographic characteristics
 Age (in years) 41.20 ± 11.34
 Gender
  Female 66 (62.86%)
  Male 39 (37.14%)
 Race
  Caucasian 57 (54.29%)
  Hispanic 35 (33.33%)
  African-American 13 (12.38%)
Clinical characteristics
 Mood state
  YMRS 14.62 ± 9.27
  IDS-30-C 24.52 ± 12.18
 Psychiatric medication status
  Medicated 90 (86.54%)
  Unmedicated 14 (13.64%)
  Lithium 19 (18.10%)
  Anticonvulsants 56 (53.33%)
  Antidepressants 45 (42.86%)
  Antipsychotics 55 (52.38%)
  Benzodiazepines 26 (24.76%)
Actigraphic assessments
 Interdaily stability (IS) 0.52 ± 0.15
 Intradaily variability (IV) 0.67 ± 0.20
 Relative amplitude (RA) 0.80 ± 0.14
 Goodness-of-fit (GOF) 0.46 ± 0.13
 Sleep efficiency 66.02 ± 13.55
 Sleep percent 31.42 ± 7.08
 Average daily sleep time (in hours) 7.49 ± 2.19
 24-h correlation 0.25 ± 0.13
 Mesor 2925.24 ± 1604.64
 Amplitude 2159.33 ± 1235.05
 Circadian quotient (CQ) 0.74 ± 0.17
 Activity mean 2843.84 ± 1565.51
 Activity median 1852.60 ± 1614.06
 Acceleration index 38.26 ± 115.35
 Activity index 65.48 ± 29.87
Clinical chronobiological assessments
 5-Item Social Rhythm Metric (SRM-5) 3.79 ± 1.30
 Pittsburgh Sleep Quality Index (PSQI) 10.30 ± 4.04
  1. Summarizes the sample characteristics. This includes demographic information, clinical characteristics, and actigraphic measurements
  2. YMRS Young Mania Rating Scale, IDS-30-C 30-Item Inventory of Depressive Symptomatology