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. Author manuscript; available in PMC: 2017 Dec 1.
Published in final edited form as: J Am Acad Child Adolesc Psychiatry. 2016 Oct 4;55(12):1064–1072.e6. doi: 10.1016/j.jaac.2016.08.011

Table 1.

Demographics and Clinical Characteristics at Intake*

Measures BD+ASD
(n=30)
BD
(n=338)
Effect Size P-value
Age, y 11.0 ± 2.7 12.8 ± 3.3 0.55 (d) <.001
Male, % 83 51 4.69 (OR) < .001
White, % 97 81 7.58 (OR) .033
IQ, mean ± SD 109 ± 19 106 ± 15 0.20 (d) .3
Onset of mood symptoms, y 6.7 ± 2.6 8.7 ± 3.9 0.52 (d) .007
Duration of bipolar disorder, y 4.4 ± 2.0 4.3 ± 3.0 0.03 (d) .84
Child Global Assessment Scale 55.9 ± 7.8 54.8 ± 12.5 0.09 (d) .65
History of suicidal ideation, % 57 75 0.44 (OR) .03
History of suicide attempts, % 17 30 0.48 (OR) .13
Mania Rating Scale Current 24.2 ± 11.5 22.9 ± 12.4 0.11 (d) .57
Most Severe Lifetime 32.2 ± 8.2 34.1 ± 7.8 0.24 (d) .24
Depression Rating Scale Current 15.3 ± 10.0 14.4 ± 10.2 0.09 (d) .66
Most Severe Lifetime 21.3 ± 12.0 22.3 ± 10.7 0.09 (d) .63
Diagnostic Characterization Including Comorbid Disorders (DSM-IV Criteria), %
Bipolar subtype, most recent BP-I/-II/-NOS 50/ 3.3/ 46.7 60/ 7.4/ 32.2 N/A .24
Anxiety disordersa 50 62 0.61 (OR) .21
OCD 30 14 2.63 (OR) .05
ADHD 87 67 3.30 (OR) .03
ODD 70 58 1.69 (OR) .21
PTSD 10 21 0.42 (OR) .15
Psychotic disorders 23 36 0.53 (OR) .18

Note: ADHD = attention-deficit/hyperactivity disorder; ASD = autism spectrum disorder; BD = bipolar disorder; BP-I/-II/-NOS = bipolar disorder I/II/not otherwise specified; d = Cohen’s d; OCD = obsessive-compulsive disorder; ODD = oppositional defiant disorder; OR = odds ratio with BD as reference group; PTSD = posttraumatic stress disorder.

a

Includes: separation and generalized anxiety disorders, panic disorder, social phobia, agoraphobia