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Table 4 Group mean scores on sleep schedule and global for OCD and HC

From: Sleep disturbances in obsessive-compulsive disorder: influence of depression symptoms and trait anxiety

  OCD HC Statistic df P value
Mean (SD) Mean (SD)
PSQI GS 8.5 (4.8) 4.6 (3.0) t = −6.18 159 < 0.001*
Time falling sleep (min) 35.7 (37.2) 17.7 (18.3) t = −4.1 159 < 0.001*
Sleep bedtime (h:min) 24:16 (1:25) 24:02 (1:22) t = −1.06 159 0.29
Getting-up bedtime (h:min) 8:41 (1:43) 7:58 (1:27) t = −2.81 159 0.005*
Mid-sleep-point (h:min) 4:31 (1:23) 4:03 (1:20) t = −2.09 159 0.04*
  1. Abbreviations: OCD Obsessive-Compulsive Disorder, HC Healthy Controls, SD Standard Deviation, PSQI GS Pittsburgh Sleep Quality Index Global Score, h hour, min minutes
  2. *P < 0.05