Long-term suicide risk of depression in the Lundby cohort 1947-1997--severity and gender.
OBJECTIVE
The long-term suicide risk of depression was evaluated in a community sample by severity and gender.


METHODS
The Lundby study is a prospective, longitudinal cohort study on a population consisting of 3563 subjects. In 1947-1997 medium or severe depression according to the Lundby diagnostic system were registered in 503 subjects. The same subjects were also diagnosed according to DSM-IV showing major depressive disorder (MDD) in 293 and depressive disorder not otherwise specified (DDNOS) in 131 subjects.


RESULTS
The overall long-term suicide risk varied from 5.6% to 6.8%. The long-term suicide risk was 3.1% for medium and 11.4% for severe 'Lundby depression', 3.7% for medium and 13.8% for severe MDD + DDNOS, 3.1% for medium and 13.7% for severe MDD. Severity and male sex were risk factors for suicide.


CONCLUSIONS
Males with a severe depression showed a high long-term risk for suicide, around 20%.
Brådvik
L
L
Department of Clinical Sciences, Division of Psychiatry, Lundby Study, Lund University Hospital, Lund, Sweden. louise@bradvik.se
Mattisson
C
C
Bogren
M
M
Nettelbladt
P
P
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002423:Cause of Death; D002648:Child; D015331:Cohort Studies; D003866:Depressive Disorder / Q000401:mortality*; D003865:Major Depressive Disorder / Q000401:mortality*; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D016016:Proportional Hazards Models; D011446:Prospective Studies; D012189:Retrospective Studies; D012306:Risk; D012737:Sex Factors; D013405:Suicide / Q000706:statistics & numerical data*; D013406:Suicide, Attempted / Q000706:statistics & numerical data*; D013548:Sweden