Table 1.

Demographics of Bipolar I patients^a (N = 6972)

Parameter	Value	N	%
Gender
	Female	4054	58.3
	Male	2894	41.7
First Episode
	Manic/Hypomanic	3384	50.2
	Depressed	3358	49.8
Family History of Mood Disorder
	No	3328	47.7
	Yes	3644	52.3
History of Alcohol or Substance Abuse
	No	3492	69.5
	Yes	1531	30.5
History of psychosis
	No	1986	35.4
	Yes	3622	64.6
Comorbid Anxiety/Panic/OCD
	No	3854	77.4
	Yes	1123	22.6
Cohort Age Group
	DOB after 1979	1732	24.8
	DOB 1979–1960	3234	46.4
	DOB 1959–1940	1738	24.9
	DOB before 1940	268	3.8
Onset Hemisphere
	Northern	5679	81.5
	Southern	1293	18.5
Parameter		Mean	SD
Age of Onset		25.6	10.4

^aMissing values excluded