Cited by 288Body Composition Measurement TechniquesObesity, Physical Activity, DietCancer Risks and Factors

Body fat and fat-free mass and all-cause mortality

Open access
Bigaard, Janne, Frederiksen, Kirsten, Tjønneland, Anne, Thomsen, Birthe Lykke, Overvad, Kim, Heitmann, Berit Lillienthal, Sørensen, Thorkild I.A.·2004·Obesity Research

Abstract

Objective: To investigate whether the association between BMI and all‐cause mortality could be disentangled into opposite effects of body fat and fat‐free mass (FFM). Research Methods and Procedures: All‐cause mortality was studied in the Danish follow‐up study “Diet, Cancer and Health” with 27, 178 men and 29, 875 women 50 to 64 years old recruited from 1993 to 1997. By the end of year 2001, the median follow‐up was 5.8 years, and 1851 had died. Body composition was assessed by bioelectrical impedance. Cox regression models were used to estimate the relationships among body fat mass index (body fat mass divided by height squared), FFM index (FFM divided by height squared), and mortality. All analyses were adjusted for smoking habits. Results: Men and women showed similar associations. J‐shaped associations were found between body fat mass index and mortality adjusted for FFM and smoking. The mortality rate ratios in the upper part of body fat mass were 1.12 per kg/m 2 (95% confidence interval: 1.07, 1.18) in men and 1.06 per kg/m 2 (95% confidence interval: 1.02, 1.10) in women. Reversed J‐shaped associations were found between FFM index and mortality with a tendency to level off for high values of FFM. Discussion: Our findings suggest that BMI represents joint but opposite associations of body fat and FFM with mortality. Both high body fat and low FFM are independent predictors of all‐cause mortality.

Integrity signals

Registry

Crossref · 10.1038/oby.2004.131

Cites

38 of 38 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Bigaard, J., Frederiksen, K., Tjønneland, A., Thomsen, B. L., Overvad, K., Heitmann, B. L., & Sørensen, T. I. A.
Affiliations
  • Danish Cancer Society (DK)
  • Aalborg University Hospital (DK)
  • Copenhagen University Hospital (DK)
Corresponding author
Bigaard, Janne
Venue
Obesity Research
Publisher
Wiley
Published
2004-07
Volume
12
Issue
7
Pages
1042-1049
ISSN
  • 1071-7323 (ISSN-L)
  • 1550-8528
OpenAlex
W2080801231
Cited by
288
References
38
Citations by year
2026: 7 · 2025: 14 · 2024: 9 · 2023: 20 · 2022: 15 · 2021: 18 · 2020: 16 · 2019: 13 · 2018: 15 · 2017: 12 · 2016: 13 · 2015: 16 · 2014: 12 · 2013: 12 · 2012: 12
FWCI
4.80
Type
journal article
Language
en
Open access
Locations
  • Obesity Research (publishedVersion)
  • PubMed (publishedVersion)
  • Research at the University of Copenhagen (University of Copenhagen) (submittedVersion)
Funders
  • Sundhed og Sygdom, Det Frie Forskningsråd
  • Danmarks Grundforskningsfond
Topics
  • Health Sciences › Medicine › Physiology › Body Composition Measurement Techniques
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Obesity, Physical Activity, Diet
  • Health Sciences › Medicine › Oncology › Cancer Risks and Factors
Keywords
fat mass, fat-free mass, all-cause mortality, body mass index, body composition, J-shaped association, smoking, middle-aged adults, sex differences
MeSH terms
Adipose Tissue, Aging, Body Composition, Cause of Death, Denmark, Female, Humans, Male, Middle Aged, Mortality, Prospective Studies, Smoking, Body Mass Index, Electric Impedance

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review