ArticleAmerican journal on intellectual and developmental disabilities2015
Association Between Low IQ Scores and Early Mortality in Men and Women: Evidence From a Population-Based Cohort Study.
Article in American journal on intellectual and developmental disabilities, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
6 citing papers in PubMed.
- Mortality Among Youth and Young Adults With Autism Spectrum Disorder, Intellectual Disability, or Cerebral Palsy.JAMA pediatrics · 2026Article
- Cognitive Capacity Genome-Wide Polygenic Scores Identify Individuals with Slower Cognitive Decline in Aging.Genes · 2022Article
- Risk factors for natural cause mortality in a cohort of 1494 persons with serious mental illness.Psychiatry research · 2021Article
- IsFrontiers in psychiatry · 2021Article
- Mortality patterns and risk among older men and women with intellectual disability: a Swedish national retrospective cohort study.BMC geriatrics · 2017Article
- LearningRx Cognitive Training Effects in Children Ages 8-14: A Randomized Controlled Trial.Applied cognitive psychologyArticle
Corrections and comments
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Authors and funding
3 authors.
Funding
Abstract
Lower (versus higher) IQ scores have been shown to increase the risk of early mortality, however, the underlying mechanisms are poorly understood and previous studies underrepresent individuals with intellectual disability (ID) and women. This study followed one third of all senior-year students (approximately aged 17) attending public high school in Wisconsin, U.S. in 1957 (n = 10,317) until 2011. Men and women with the lowest IQ test scores (i.e., IQ scores ≤ 85) had increased rates of mortality compared to people with the highest IQ test scores, particularly for cardiovascular disease. Importantly, when educational attainment was held constant, people with lower IQ test scores did not have higher mortality by age 70 than people with higher IQ test scores. Individuals with lower IQ test scores likely experience multiple disadvantages throughout life that contribute to increased risk of early mortality.
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Registered trials
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