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. Author manuscript; available in PMC: 2017 Mar 3.
Published in final edited form as: J Clin Child Adolesc Psychol. 2016 Jul 29;46(2):247–257. doi: 10.1080/15374416.2016.1188699

Table 2. Means, Standard Deviations, and Ranges for Sleep Variables of 41 Study Participants Across Study Time Points.

T1 T2

BD (n=19) Control (n=22) BD (n=19) Control (n=22)
Weekday Sleep
 Sleep onset latency (min)
   Mean (SD) 23.9 (16.7) 20.0 (18.7) 29.2 (37.9) 20.6 (17.1)
   Range 5-60 0-60 0-120 5-60
 No. awakenings
   Mean (SD) 1.05 (1.18) 0.50 (0.76) 0.47 (0.77) 0.65 (0.81)
   Range 0-4 0-2 0-2 0-3
 Wake time (min)
   Mean (SD) 11.7 (18.9) 1.35 (2.52) 26.0 (77.0) 7.72 (10.9)
   Range 0-75 0-10 0-300 0-30
Weekend Sleep
 Sleep onset latency (min)
   Mean (SD) 34.1 (68.0) 14.1 (17.4) 19.6 (22.1) 17.6 (18.0)
   Range 0-300 0-60 0-75 0-60
 No. awakenings
   Mean (SD) 0.88 (1.17) 0.45 (0.76) 0.39 (0.61) 0.35 (0.75)
   Range 0-4 0-2 0-2 0-3
 Wake time (min)
   Mean (SD) 10.6 (22.7) 1.58 (2.76) 3.25 (5.69) 3.06 (6.10)
   Range 0-90 0-10 0-20 0-20

Note. SD, standard deviation. Two control group participants were missing weekday onset latency and weekday number of awakenings at T1. One bipolar group participant was missing weekday wake time and weekend sleep onset latency at T1.