Evidence map›Paper›PMID 21951982›Full record

ArticleJournal of evaluation in clinical practice2012

Is the use of cholesterol in mortality risk algorithms in clinical guidelines valid? Ten years prospective data from the Norwegian HUNT 2 study.

Halfdan Petursson, Johann A Sigurdsson, Calle Bengtsson, Tom I L Nilsen, Linn Getz

Abstract read
In one paragraph

Article in Journal of evaluation in clinical practice, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

13 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Low-Density-Lipoprotein Cholesterol and Mortality Outcomes Among Healthy Older Adults: A Post Hoc Analysis of ASPREE Trial.The journals of gerontology. Series A, Biological sciences and medical sciences · 2024
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

Halfdan PeturssonResearch Unit of General Practice, Department of Public Health and General Practice, Norwegian University of Science and Technology (NTNU), Trondheim, Norway. halfdanpe@gmail.com
Johann A Sigurdsson
Calle Bengtsson
Tom I L Nilsen
Linn Getz

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

RATIONALE, AIMS AND

objectivesMany clinical guidelines for cardiovascular disease (CVD) prevention contain risk estimation charts/calculators. These have shown a tendency to overestimate risk, which indicates that there might be theoretical flaws in the algorithms. Total cholesterol is a frequently used variable in the risk estimates. Some studies indicate that the predictive properties of cholesterol might not be as straightforward as widely assumed. Our aim was to document the strength and validity of total cholesterol as a risk factor for mortality in a well-defined, general Norwegian population without known CVD at baseline.

methodsWe assessed the association of total serum cholesterol with total mortality, as well as mortality from CVD and ischaemic heart disease (IHD), using Cox proportional hazard models. The study population comprises 52 087 Norwegians, aged 20-74, who participated in the Nord-Trøndelag Health Study (HUNT 2, 1995-1997) and were followed-up on cause-specific mortality for 10 years (510 297 person-years in total).

resultsAmong women, cholesterol had an inverse association with all-cause mortality [hazard ratio (HR): 0.94; 95% confidence interval (CI): 0.89-0.99 per 1.0 mmol L(-1) increase] as well as CVD mortality (HR: 0.97; 95% CI: 0.88-1.07). The association with IHD mortality (HR: 1.07; 95% CI: 0.92-1.24) was not linear but seemed to follow a 'U-shaped' curve, with the highest mortality <5.0 and ≥7.0 mmol L(-1) . Among men, the association of cholesterol with mortality from CVD (HR: 1.06; 95% CI: 0.98-1.15) and in total (HR: 0.98; 95% CI: 0.93-1.03) followed a 'U-shaped' pattern.

conclusionOur study provides an updated epidemiological indication of possible errors in the CVD risk algorithms of many clinical guidelines. If our findings are generalizable, clinical and public health recommendations regarding the 'dangers' of cholesterol should be revised. This is especially true for women, for whom moderately elevated cholesterol (by current standards) may prove to be not only harmless but even beneficial.

Indexed as

AlgorithmsPractice Guidelines as TopicAdultAgedCardiovascular DiseasesCholesterolHumansMiddle AgedNorwayProportional Hazards ModelsProspective StudiesRisk FactorsYoung AdultCholesterol

Identifiers

PMID21951982
PMCPMC3303886

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Registered trials

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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.