title: Is IQ in childhood associated with suicidal thoughts and attempts? Findings from the Mater University Study of Pregnancy and its outcomes.
abstract: This study explores associations of IQ at age 14 with adult symptoms of suicidal thoughts and attempts at age 21. Analysis was based on the Mater University Study of Pregnancy and its outcomes, an Australian prospective birth cohort study started in Brisbane Australia in 1981. We assessed associations with suicide thoughts, plans, and attempts. We used two measures of IQ: the Raven's Standard Progressive Matrices and the Wide Range Achievement Test. In multivariable analyses, there was an inverse association between Raven's IQ and suicide thoughts, plans, and attempts, but no strong evidence of an association between the WRAT3 and the three suicidal items. Specific aspects of intelligence may be associated with suicidal thoughts, plans, and attempts.
authors.affiliation: University of Queensland, School of Population Health, Herston, Australia. r.alati@sph.uq.edu.au
authors.forename: Rosa
authors.initials: R
authors.lastname: Alati
authors.forename: David
authors.initials: D
authors.lastname: Gunnell
authors.forename: Jake
authors.initials: J
authors.lastname: Najman
authors.forename: Gail
authors.initials: G
authors.lastname: Williams
authors.forename: Debbie
authors.initials: D
authors.lastname: Lawlor
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D015331:Cohort Studies; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007360:Intelligence; D008137:Longitudinal Studies; D008297:Male; D009042:Motivation; D011247:Pregnancy; D011793:Queensland; D013223:Statistics as Topic; D013406:Suicide, Attempted / Q000523:psychology*; D013850:Thinking; D055815:Young Adult