Skip to main content

Advertisement

Table 3 Sleep, depression, and quality of life in participants with major depressive disorders (MDD) and controls

From: Comparison of self-reported scales and structured interviews for the assessment of depression in an urban male working population in Japan: a cross-sectional survey

   MDD Control p-value
n   24 290  
Age (years) 41.3 ± 6.98 44.2 ± 8.41 0.109
BMI (kg/m2) 23.1 ± 2.94 23.7 ± 3.03 0.344
PSQI   5.58 ± 2.28 4.76. ± 1.97 0.052
>5 (n, %) 12, 50.0% 84, 29.5% 0.037
ESS   9.26 ± 4.65 8.06 ± 4.19 0.184
>10 (n, %) 9, 37.5% 75, 26.7% 0.256
TST (questionnaire) (hr) 5.93 ± 0.57 5.90 ± 0.87 0.882
TST (actigraphy) (hr) 5.15 ± 0.87 5.22 ± 0.80 0.690
Weekday sleep debt (Actigraphy) (hr) 1.06 ± 1.78 0.80 ± 1.36 0.401
SL (actigraphy) (min) 15.3 ± 9.45 15.4 ± 16.4 0.970
SDS   38.8 ± 6.25 36.1 ± 6.26 0.038
≤39 12 200 0.020
40-49 11 70  
≥50 1 5  
SF-36 PF 53.4 ± 5.19 53.8 ± 6.57 0.746
RP 51.3 ± 6.89 52.5 ± 7.24 0.423
BP 48.5 ± 9.54 51.6 ± 9.23 0.107
GH 45.4 ± 9.27 51.4 ± 8.90 0.002
VT 44.6 ± 8.85 50.7 ± 7.90 <0.001
SF 46.7 ± 13.0 53.4 ± 6.64 <0.001
RE 47.4 ± 7.89 52.0 ± 7.44 0.004
MH 44.7 ± 8.50 51.3 ± 8.31 <0.001
  1. Data were compared between participants without psychiatric disorders (control) and those with current and past MDD using independent t-tests and chi-square tests. Five, 9, 15, and four participants did not answer the PSQI, ESS, SDS, and SF-36, respectively. Actigraphy data from 12 participants were missing. Total sleep time (TST) was obtained from the questionnaires and via actigraphy. Sleep latency (SL) and weekday sleep debt were estimated from the actigraphy data. The weekday sleep debt was calculated as the TST on weekends minus the TST on weekdays
  2. PSQI Pittsburgh Sleep Quality Index, ESS Epworth sleepiness scale, Medical Outcomes Study 36-item Health Survey (SF-36), PF physical functioning, RP role limitations due to physical health (role-physical), BP bodily pain, GH general health perceptions, VT vitality, SF social functioning, RE role limitations due to emotional problems (role-emotional); and MH mental health