The impact of childhood obesity on morbidity and mortality in adulthood: a systematic review

Obes Rev. 2012 Nov;13(11):985-1000. doi: 10.1111/j.1467-789X.2012.01015.x. Epub 2012 Jun 26.


The objective of this study was to evaluate the evidence on whether childhood obesity is a risk factor for adult disease, independent of adult body mass index (BMI). Ovid MEDLINE (1948-May 2011), EMBASE (1980-2011 week 18) and the Cochrane Library (1990-2011) were searched for published studies of BMI from directly measured weight and height in childhood (2-19 years) and disease outcomes in adulthood. Data were synthesized in a narrative fashion. Thirty-nine studies (n 181-1.1 million) were included in the review. There was evidence for associations between childhood BMI and type 2 diabetes, hypertension and coronary heart disease. Few studies examined associations independent of adult BMI; these showed that effect sizes were attenuated after adjustment for adult BMI in standard regression analyses. Although there is a consistent body of evidence for associations between childhood BMI and cardiovascular outcomes, there is a lack of evidence for effects independent of adult BMI. Studies have attempted to examine independent effects using standard adjustment for adult BMI, which is subject to over-adjustment and problems with interpretation. Studies that use more robust designs and analytical techniques are needed to establish whether childhood obesity is an independent risk factor for adult disease.

Publication types

  • Review
  • Systematic Review

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Aging
  • Body Mass Index*
  • Cardiovascular Diseases / epidemiology
  • Cardiovascular Diseases / etiology*
  • Cause of Death
  • Child
  • Child, Preschool
  • Comorbidity
  • Diabetes Mellitus, Type 2 / epidemiology
  • Diabetes Mellitus, Type 2 / etiology*
  • Female
  • Humans
  • Male
  • Middle Aged
  • Neoplasms / epidemiology
  • Neoplasms / etiology
  • Obesity / complications*
  • Obesity / epidemiology
  • Risk Assessment
  • Risk Factors
  • Young Adult