Am J Psychiatry 1985; 142:817-821
Copyright © 1985 by American Psychiatric Association
Bipolar I, bipolar II, and nonbipolar major depression among the relatives of affectively ill probands
W Coryell, J Endicott, N Andreasen and M Keller
An earlier report described symptoms and background features in depressed
probands grouped by polarity: bipolar I, bipolar II, and nonbipolar. The
present study made similar comparisons among relatives with a lifetime
history of major depression. The 73 relatives with bipolar II disorder had
the highest rates of marital disruption, psychopathology in the previous
month, nonserious suicide attempts, and nonaffective syndromes and were the
youngest when first treated.