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Body composition and body fat distribution in relation to later risk of acute myocardial infarction: a Danish follow-up study.

https://arctichealth.org/en/permalink/ahliterature137399
Source
Int J Obes (Lond). 2011 Nov;35(11):1433-41
Publication Type
Article
Date
Nov-2011
Author
J G Stegger
E B Schmidt
T. Obel
T L Berentzen
A. Tjønneland
T I A Sørensen
K. Overvad
Author Affiliation
Department of Cardiology, Center for Cardiovascular Research, Aalborg Hospital, Aarhus University Hospital, Aalborg, Denmark. Jakob.Stegger@rn.dk
Source
Int J Obes (Lond). 2011 Nov;35(11):1433-41
Date
Nov-2011
Language
English
Publication Type
Article
Keywords
Body Composition
Body Fat Distribution
Body mass index
Denmark - epidemiology
Female
Follow-Up Studies
Humans
Male
Middle Aged
Myocardial Infarction - epidemiology - etiology - physiopathology
Obesity - complications - epidemiology - physiopathology
Predictive value of tests
Proportional Hazards Models
Prospective Studies
Questionnaires
Risk factors
Abstract
Obesity is a modifiable risk factor for acute myocardial infarction (MI), but lean body mass (LBM) may also be an important factor. Low LBM may increase the risk of MI and LBM may modify the effect of obesity on MI. Thus, the inability of the classical anthropometric measures to evaluate LBM may lead to misclassification of MI risk in both lean and obese persons. We investigated the associations between incident MI and bioelectrical impedance analyses (BIA) derived measures of body composition in combination with body mass index (BMI) and anthropometric measures of body fat distribution.
From 1993 to 1997, 27?148 men and 29?863 women, aged 50 to 64 year, were recruited into the Danish prospective study Diet, Cancer and Health. During 11.9 years of follow-up we identified 2028 cases of incident MI (1487 men and 541 women). BMI, waist circumference (WC), hip circumference and BIA of body composition including body fat mass (BFM), body fat percentage and LBM were measured at baseline. We used Cox proportional hazard models with age as time axis and performed extensive control for confounding. Weight, BMI, classical estimates of abdominal obesity and BIA estimates of obesity showed significant positive associations with incident MI. However, BFM adjusted for WC showed no association. Low LBM was associated with a higher risk of incident MI in both genders, and high LBM was associated with a higher risk in men.
Obesity was positively associated with MI. Estimates of obesity achieved by BIA seemed not to add additional information to classical anthropometric measures regarding MI risk. Both high and low LBM may be positively associated with MI.
PubMed ID
21285940 View in PubMed
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Waist circumference and body composition in relation to all-cause mortality in middle-aged men and women.

https://arctichealth.org/en/permalink/ahliterature16994
Source
Int J Obes (Lond). 2005 Jul;29(7):778-84
Publication Type
Article
Date
Jul-2005
Author
J. Bigaard
K. Frederiksen
A. Tjønneland
B L Thomsen
K. Overvad
B L Heitmann
T I A Sørensen
Author Affiliation
The Danish Cancer Society, Institute of Cancer Epidemiology, Copenhagen, Denmark. j.bigaard@dadlnet.dk
Source
Int J Obes (Lond). 2005 Jul;29(7):778-84
Date
Jul-2005
Language
English
Publication Type
Article
Keywords
Abdomen
Anthropometry
Body Composition
Body constitution
Body mass index
Cause of Death
Denmark - epidemiology
Female
Humans
Male
Middle Aged
Mortality
Research Support, Non-U.S. Gov't
Sex Factors
Abstract
OBJECTIVE: Waist circumference is directly related to all-cause mortality when adjusted for body mass index (BMI). Body fat and fat-free body mass, when mutually adjusted, show with increasing values an increasing and decreasing relation to all-cause mortality. We investigated the association of waist circumference and body composition (body fat and fat-free mass), mutually adjusted, to all-cause mortality. DESIGN: A Danish prospective cohort study with a median follow-up period of 5.8 y. SUBJECTS: In all, 27 178 men and 29 875 women, born in Denmark, aged 50-64 y, and without diagnosis of cancer at the time of invitation. MEASUREMENTS: Waist circumference and body composition estimated from impedance measurements. Cox's regression models were used to estimate the mortality rate ratios (RR). RESULTS: Waist circumference was strongly associated with all-cause mortality after adjustment for body composition; the mortality RR was 1.36 (95% confidence intervals (CI): 1.22-1.52) times higher per 10% larger waist circumference among men and 1.30 (95% CI: 1.17-1.44) times higher among women. Adjustment for waist circumference eliminated the association between high values of the body fat mass index (BFMI) and all-cause mortality. The association between fat-free mass index (FFMI) and mortality remained unaltered. CONCLUSION: Waist circumference accounted for the mortality risk associated with excess body fat and not fat-free mass. Waist circumference remained strongly and directly associated with all-cause mortality when adjusted for total body fat in middle-aged men and women, suggesting that the increased mortality risk related to excess body fat is mainly due to abdominal adiposity.
PubMed ID
15917857 View in PubMed
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