Meta-analysiscited by the Tayebat archiveabstract only checked A-INS-22 standard review

Insulin levels and heart disease: pooled analysis

Insulin and risk of cardiovascular disease: a meta-analysis.

Overview

Ruige JB et al.. Circulation 1998 · PMID 9529268 · DOI 10.1161/01.cir.97.10.996

Higher insulin was only weakly linked to heart disease (18% higher risk).

Does the study support the specific claim? Partly · Methodological quality: moderate

Study explained simply

What did the researchers want to find out?: Strength of relation between hyperinsulinaemia and CVD
How was the study done?: Meta-analysis of prospective cohorts and nested case-control studies
How many people, animals or samples were studied?: 12 studies; General population cohorts
What was actually found?: RR 1.18.
How large was the observed effect?: RR 1.18 (1.08-1.29)
What do the results mean in everyday life?: Weak signal.
What are the study's limitations?: Old assays; Heterogeneity
What does it say about Elawady's specific claim?: Weak association for C-INS-03.
Do the results apply to Germany and Europe?: Includes Dutch data.
What can explicitly not be concluded from this study?: Causation; anything about insulin therapy.

Authors: Ruige JB, Assendelft WJ, Dekker JM, Kostense PJ, Heine RJ, Bouter LM
Journal: Circulation
Year: 1998
Identifier: PMID 9529268 DOI 10.1161/01.cir.97.10.996
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

Strength of relation between hyperinsulinaemia and CVD

Study design: Meta-analysis – Meta-analysis of prospective cohorts and nested case-control studies
Population: General population cohorts
Country: International
Period: Studies to 1990s
Sample size: 12 studies
Inclusion and exclusion criteria: As described in the abstract; details not available in abstract.

Results: Summary RR 1.18 (1.08-1.29); modified by ethnicity and insulin assay.
Absolute risks: not reported
Authors' conclusion: Hyperinsulinaemia is a weak risk indicator for CVD.

Weak association.

Weak association for C-INS-03.

Includes Dutch data.

Weak marker.

Multidimensional assessment
Multidimensional assessment
Authenticity of the source	verified
Methodological quality	moderate
Risk of bias	some concerns
Precision of results	moderate
Directness	indirect
Reproducibility	partly replicated
Consistency with the overall evidence	mixed
Regional transferability	high
Adequacy of the interpretation (by the archive)	not supported by the study

None beyond those stated.

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?: Strength of relation between hyperinsulinaemia and CVD
B. What did the authors find?: RR 1.18.
C. What conclusions do the authors themselves draw?: Hyperinsulinaemia is a weak risk indicator for CVD.
D. What does the archive derive from it?: Support for insulin-atherosclerosis claim.
E. Is this derivation scientifically justified?: Not justified: the authors call the link weak; endogenous insulin only.
Adequacy of the interpretation (by the archive): not supported by the study