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. Author manuscript; available in PMC: 2012 Jun 20.
Published in final edited form as: Child Psychiatry Hum Dev. 2011 Dec;42(6):724–740. doi: 10.1007/s10578-011-0239-0

Table 2.

Demographic data

Bipolar (BD) (n = 27) Healthy Controls (HC) (n = 24) P
Age 15.6 ± 1.5 14.9 ± 1.4 0.18
Gender (females) 15 14 1.00
Race 67% Caucasian 58% Caucasian 0.17
22% Mixed race 13% Mixed race
4% Hispanic 8% Hispanic
4% Pacific Islander 17% Asian
4% Unknown 4% Black
Hollingshead SES 4.7 ± 0.5 4.6 ± 0.7 0.43

Analyses of Sleep Variables