Skip to main content

Table 2 Group differences for the main outcome variables

From: Sleep disturbances in the context of neurohormonal dysregulation in patients with bipolar disorder

  Healthy controls Bipolar disorder t-test
TST (sleep diary) 437.51 (SD = 52.52) 478.28 (SD = 64.64) p = 0.024
TIB (sleep diary) 486.26 (SD = 58.75) 550.89 (SD = 73.83) p = 0.002
TST (actigraphy) 402.63 (SD = 47.37) 428.05 (SD = 71.59) p = 0.176
WASO (actigraphy) 51.56 (SD = 16.77) 72.90 (SD = 35.86) p = 0.019
SE (actigraphy) 88.01% (SD = 3.30%) 84.45% (SD = 6.75%) p = 0.036
Sleep onset (actigraphy) 24.35 (SD = 0.79) 23.37 (SD = 1.16) p = 0.002
Average melatonin 3.35 (SD = 2.23) 4.06 (SD = 2.77) p = 0.352
Cortisol 17.06 (SD = 5.37) 16.97 (SD = 10.22)
n = 18
p = 0.969
DLMO 21.82 (SD = 1.50) n = 22 20.17 (SD = 1.63)
n = 20
p = 0.001
Phase angle difference 6.35 (SD = 1.40) n = 22 7.48 (SD = 1.53)
n = 20
p = 0.017