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Baseline levels, and changes over time in body mass index and fasting insulin, and their relationship to change in metabolic trait clustering.

Abstract：

BACKGROUND:Multiple abnormal metabolic traits are found together or "cluster" within individuals more often than is predicted by chance. The individual and combined role of adiposity and insulin resistance (IR) on metabolic trait clustering is uncertain. We tested the hypothesis that change in trait clustering is a function of both baseline level and change in these measures. METHODS:In 2616 nondiabetic Framingham Offspring Study participants, body mass index (BMI) and fasting insulin were related to a within-person 7-year change in a trait score of 0-4 Adult Treatment Panel III metabolic syndrome traits (hypertension, high triglycerides, low high-density lipoprotein cholesterol, hyperglycemia). RESULTS:At baseline assessment, mean trait score was 1.4 traits, and 7-year mean (SEM) change in trait score was +0.25 (0.02) traits, P<0.0001. In models with BMI predictors only, for every quintile difference in baseline BMI, the 7-year trait score increase was 0.14 traits, and for every quintile increase in BMI during 7-year follow-up, the trait score increased by 0.3 traits. Baseline level and change in fasting insulin were similarly related to trait score change. In models adjusted for age-sex-baseline cluster score, 7-year change in trait score was significantly related to both a 1-quintile difference in baseline BMI (0.07 traits) and fasting insulin (0.18 traits), and to both a 1-quintile 7-year increase in BMI (0.21 traits) and fasting insulin (0.18 traits). CONCLUSIONS:Change in metabolic trait clustering was significantly associated with baseline levels and changes in both BMI and fasting insulin, highlighting the importance of both obesity and IR in the clustering of metabolic traits.

journal_name

Metab Syndr Relat Disord

journal_title

Metabolic syndrome and related disorders

authors

Rutter MK,Sullivan LM,Fox CS,Wilson PW,Nathan DM,Vasan RS,D'Agostino RB Sr,Meigs JB

doi

10.1089/met.2013.0148

subject

Has Abstract

pub_date

2014-09-01 00:00:00

pages

372-80

issue

eissn

1540-4196

issn

1557-8518

journal_volume

pub_type

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Baseline levels, and changes over time in body mass index and fasting insulin, and their relationship to change in metabolic trait clustering.