Relative leg length is associated with type 2 diabetes differently according to pubertal timing: The Brazilian longitudinal study of adult health

Noel Mueller, Bruce B. Duncan, Sandhi M. Barreto, Dora Chor, Alvaro Vigo, Estela M L Aquino, Ellen W. Demerath, Maria Inês Schmidt

Research output: Contribution to journalArticle

Abstract

Objectives: Studies from developed societies have shown that individuals with short legs relative to height have higher risk of type 2 diabetes. This has been much less explored in less developed populations where influences on relative leg length and diabetes may differ. The Brazilian Longitudinal Study of Adult Health (in Portuguese, ELSA-Brasil) allows us to test, in a cohort born (1934-1975) and raised when undernutrition was common, whether short legs relative to height is positively associated with diabetes, independent of early-life factors, including birth weight, age at menarche, and young-adult BMI. Methods: We used baseline, cross-sectional data from 15,105 participants aged 35-74 years participating in ELSA-Brasil. We created age-and-sex-specific Z scores for leg length index (leg length/height × 100) according to an external reference. Diabetes was defined by self-reported physician diagnosis, medication use, fasting and 2-h post-75-g-load glucose, and A1C. Results: A one-unit decrement in leg-length-index Z score was associated with 12% (8-17%) higher prevalence of diabetes in Brazilian adults, after adjustment through Poisson regression for confounders, including race, maternal education, and birth weight. This association persisted after further adjustment for menarche age, BMI (at age 20), buttocks circumference, and waist circumference. It was stronger among women with early menarche (P interaction=0.02). Leg length index was also inversely associated with fasting glucose, fasting insulin, 2-h glucose, and A1C (P

Original languageEnglish (US)
Pages (from-to)219-225
Number of pages7
JournalAmerican Journal of Human Biology
Volume27
Issue number2
DOIs
StatePublished - Mar 1 2015
Externally publishedYes

Fingerprint

diabetes
longitudinal studies
noninsulin-dependent diabetes mellitus
Type 2 Diabetes Mellitus
chronic illness
Longitudinal Studies
Leg
longitudinal study
legs
fasting
Health
menarche
Menarche
health
glucose
Fasting
Birth Weight
Glucose
birth weight
buttocks

ASJC Scopus subject areas

  • Anthropology
  • Anatomy
  • Genetics
  • Ecology, Evolution, Behavior and Systematics

Cite this

Relative leg length is associated with type 2 diabetes differently according to pubertal timing : The Brazilian longitudinal study of adult health. / Mueller, Noel; Duncan, Bruce B.; Barreto, Sandhi M.; Chor, Dora; Vigo, Alvaro; Aquino, Estela M L; Demerath, Ellen W.; Schmidt, Maria Inês.

In: American Journal of Human Biology, Vol. 27, No. 2, 01.03.2015, p. 219-225.

Research output: Contribution to journalArticle

Mueller, Noel ; Duncan, Bruce B. ; Barreto, Sandhi M. ; Chor, Dora ; Vigo, Alvaro ; Aquino, Estela M L ; Demerath, Ellen W. ; Schmidt, Maria Inês. / Relative leg length is associated with type 2 diabetes differently according to pubertal timing : The Brazilian longitudinal study of adult health. In: American Journal of Human Biology. 2015 ; Vol. 27, No. 2. pp. 219-225.
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