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. Author manuscript; available in PMC: 2017 Jan 1.
Published in final edited form as: J Affect Disord. 2015 Sep 25;189:94–97. doi: 10.1016/j.jad.2015.09.031

Table 1.

Characteristics of the sample

Bipolar Disorder
(n=29)		 Controls (n=22)
Val/Val
(19)		 Val/Met-Met/Met
(10)		 Val/Val
(12)		 Val/Met-Met/Met
(10)
Gender Male 8 (42%) Male 7 (70%) Male 9 (75%) Male 5 (50%)
Ethnicity
  Caucasian 16 (84.2%) 9 (90%) 10 (83.3%) 10 (100%)
  African-American 3 (15.8%) 1 (10%) 1 (8.3%) 0
  Other 0 0 1 (8.3%) 0
Age (years) 14.84±2.267 11.80±2.57 12.75±2.63 13.4± 3.44
Min-Max 11-17 8-15 9-17 9-17
Age at onset* 10.05±3.12 7.40±3.20
Presence of psychosis 7 (36.8%) 3 (30%)
*

Values are presented as absolute count (relative frequencies), or as means ± standard deviation.