Narrative reviewcited by the Tayebat archiveabstract only checked A-INS-23 standard review
Review: obesity and cancer
Overweight, obesity and cancer: epidemiological evidence and proposed mechanisms.
Overview
Calle EE et al.. Nat Rev Cancer 2004 · PMID 15286738 · DOI 10.1038/nrc1408
Not assessed (no abstract available).
Does the study support the specific claim? Unclear · Methodological quality: low
Plain-language summary
Study explained simply
- What did the researchers want to find out?
Epidemiology and mechanisms linking overweight/obesity and cancer
- How was the study done?
Narrative review (no abstract in PubMed; not read)
- How many people, animals or samples were studied?
not applicable; not applicable
- What was actually found?
Not assessed.
- How large was the observed effect?
not applicable
- What do the results mean in everyday life?
Not assessable.
- What are the study's limitations?
Narrative review; Not read
- What does it say about Elawady's specific claim?
Indirect background for C-INS-06.
- Do the results apply to Germany and Europe?
not applicable
- What can explicitly not be concluded from this study?
Anything about insulin injections.
Scientific in-depth review
1. Full reference
- Authors
- Calle EE, Kaaks R
- Journal
- Nat Rev Cancer
- Year
- 2004
- Identifier
- PMID 15286738 DOI 10.1038/nrc1408
- Verification
- verified – PubMed E-utilities efetch, 2026-10-25
- Retracted
- no
- Corrections
- none
- Extent checked
- abstract only
- Conflicts of interest and funding
not stated in abstract
2. Research question
Epidemiology and mechanisms linking overweight/obesity and cancer
3. Study design and population
- Study design
- Narrative review – Narrative review (no abstract in PubMed; not read)
- Population
not applicable
- Country
not applicable
- Period
not applicable
- Sample size
not applicable
- Inclusion and exclusion criteria
As described in the abstract; details not available in abstract.
4. Methods and endpoints
- Exposure / intervention
Overweight/obesity
- Comparator
not applicable
- Endpoints
Cancer
- Statistical methods
not applicable
5. Actual results
- Results
No abstract available in PubMed; content not verified in this audit.
- Absolute risks
not reported
- Authors' conclusion
Not verifiable from the record (no abstract).
6. Strengths
- Highly cited review in Nat Rev Cancer
7. Weaknesses
- Narrative review
- Not read
8. Risk of bias
- Orienting tool
- none applicable
- Type of assessment
- simplified assessment (abstract only)
- Full formal assessment
- no
- Overall risk of bias
- not assessable
- Rationale
No abstract.
9. Assessment of the statistical interpretation
not applicable
10. Relevance to the specific claim
Indirect background for C-INS-06.
11. Independent contrary findings
12. Transferability to Germany and Europe
not applicable
13. Overall methodological judgement
Background review; not assessed.
| Multidimensional assessment | |
|---|---|
| Authenticity of the source | verified |
| Methodological quality | low |
| Risk of bias | not assessable |
| Precision of results | not applicable |
| Directness | very indirect |
| Reproducibility | unknown |
| Consistency with the overall evidence | unknown |
| Regional transferability | unknown |
| Adequacy of the interpretation (by the archive) | not verifiable |
14. Open questions
None beyond those stated.
15. Linked fact checks
- Insulin glargine increases cancer risk in a dose-dependent way (and long-term use increases breast cancer). – Studies with mixed or unclear results
Use by the Tayebat archive
Note: according to the archive, the studies were compiled by the archive operators. Whether Dr. Elawady himself cited this study is not established.
- What the archive says about the study
Listed in the archive bibliography for 'insulin-injections' without its own interpretation; used as general support for the claim that insulin intensification harms.
- A. What was actually studied?
Epidemiology and mechanisms linking overweight/obesity and cancer
- B. What did the authors find?
Not assessed.
- C. What conclusions do the authors themselves draw?
Not verifiable from the record (no abstract).
- D. What does the archive derive from it?
Presumably used to link hyperinsulinaemia/obesity to cancer.
- E. Is this derivation scientifically justified?
Not verifiable; obesity-cancer links concern endogenous hyperinsulinaemia and adiposity, not insulin therapy.
- Adequacy of the interpretation (by the archive)
- not verifiable