Association of IQ scores and school achievement with suicide in a 40-year follow-up of a Swedish cohort.

• OBJECTIVE: Few studies have investigated the association of childhood IQ and school achievement with suicide. The aim of this study was to investigate the association of childhood IQ with suicide in a cohort of Swedish women and men. METHOD: 21 809 subjects born in 1948 and 1953 who completed IQ and school tests at age 13 years have been followed until 2003. Information on paternal education and in-patient care for psychosis was linked using the Swedish personal identification number. RESULTS: There were 180 suicides amongst subjects with measured IQ. High IQ was associated with reduced suicide risk among men (OR per unit increase in age-adjusted model 0.90, 95% CI 0.83-0.99), while there was no statistical evidence of an association in women (OR 1.04, 95% CI 0.90-1.20). Among men with a history of psychosis, high IQ was associated with an increased risk of suicide. CONCLUSION: Low childhood IQ at age 13 years is associated with an increased risk of suicide in men but not in women; however, amongst those with psychosis, low IQ appears to be protective.

Ämnesord

MEDICIN OCH HÄLSOVETENSKAP  -- Hälsovetenskap -- Folkhälsovetenskap, global hälsa, socialmedicin och epidemiologi (hsv//swe)

MEDICAL AND HEALTH SCIENCES  -- Health Sciences -- Public Health, Global Health, Social Medicine and Epidemiology (hsv//eng)

Nyckelord

Adolescent

Cognition

physiology

Cohort Studies

Educational Status

Fathers

psychology

statistics & numerical data

Female

Follow-Up Studies

Humans

Intelligence

physiology

Intelligence Tests

statistics & numerical data

Longitudinal Studies

Male

Middle Aged

Odds Ratio

Psychotic Disorders

epidemiology

psychology

Sex Distribution

Socioeconomic Factors

Suicide

psychology

statistics & numerical data

Sweden

epidemiology

Publikations- och innehållstyp

ref (ämneskategori)

art (ämneskategori)