Evidence map›Paper›PMID 30202394›Full record

ReviewAmerican journal of lifestyle medicine

The Obesity Paradox in Type 2 Diabetes and Mortality.

Deirdre K Tobias, JoAnn E Manson

Abstract readReview
In one paragraph

Review in American journal of lifestyle medicine. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
0.4field-weighted citation impact, top 33% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 20 citations in OpenAlex.

  1. Vitamin D and disease prevention in 2024: commentary on recent Endocrine Society recommendations.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2025
    Article
  2. Article
  3. Obesity paradox in individuals with type 1 diabetes.Frontiers in clinical diabetes and healthcare · 2025
    Review
  4. Review
  5. Review
  6. The obesity paradox and diabetes.Eating and weight disorders : EWD · 2021
    Review
  7. Observational
  8. Article
  9. Article
  10. Article
  11. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors at 2 institutions in 2 countries.

Deirdre K TobiasDivision of Preventive Medicine, Department of Medicine, Brigham and Women's Hospital (DKT, JEM), Boston, Massachusetts.
JoAnn E MansonDivision of Preventive Medicine, Department of Medicine, Brigham and Women's Hospital (DKT, JEM), Boston, Massachusetts.
General Department of Preventive Medicine · VNHarvard University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The obesity paradox for survival among individuals with type 2 diabetes has been observed in some but not all studies. Conflicting evidence for the role of overweight and obesity in all-cause mortality may largely be a result of differences in study populations, epidemiological methods, and statistical analysis. For example, analyses among populations with long-term prevalent diabetes and the accrual of other chronic health conditions are more likely to observe that the sickest participants have lower body weights, and therefore, relative to normal weight, overweight and even obesity appear advantageous. Other mortality risk factors, such as smoking, also confound the relationship between body weight and survival, but this behavior varies widely in intensity and duration, making it difficult to assess and effectively adjust for in statistical models. Disentangling the potential sources of bias is imperative in understanding the relevance of excess body weight to mortality in diabetes. In this review, we summarize methodological considerations underlying the observed obesity paradox. Based on the available evidence, we conclude that the obesity paradox is likely an artifact of biases, and once these are accounted for, it is evident that compared with normal body weight, excess body weight is associated with a greater mortality risk.

Indexed as

epidemiologymortalityobesity paradoxtype 2 diabetes

Identifiers

PMID30202394
PMCPMC6124964
OpenAlexW2407207147

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.