Geoff Der|G. David Batty|Ian J. Deary
The association between IQ in adolescence and a range of health outcomes at 40 in the 1979 US National Longitudinal Study of Youth
University of Edinburgh|MRC/CSO Social and Public Health Sciences Unit|University of Glasgow|University of Edinburgh|MRC/CSO Social and Public Health Sciences Unit|University of Glasgow|University of Edinburgh
link premorbid intelligence cause mortality becoming well established aetiology association understood less known links cause specific mortality morbidity aim study examine association intelligence measured adolescence broad range health outcomes ascertained 40 years age use data 7476 participants us national longitudinal survey youth 1979 cognitive ability measured baseline completed health 40 interview module 1998 2004 health 40 module includes assessments general health depression nine medically diagnosed conditions 33 common health problems higher mental test scores associated lower depression scores better general health significantly lower odds five nine diagnosed conditions 15 33 health problems health disadvantage higher cognitive ability evident three 33 health problems