Evidence map›Paper›PMID 27057857›Full record

ArticleMedicine2016

Comparison and Validation of 10 Equations Including a Novel Method for Estimation of LDL-cholesterol in a 168,212 Asian Population.

John Hoon Rim, Yong-Ho Lee, Myung Ha Lee, Ha Yan Kim, Jiin Choi, Byung-Wan Lee, Eun Seok Kang, Hyun Chul Lee, Jeong-Ho Kim, Sang-Guk Lee and 1 more

Open access · goldAbstract readComparative StudyValidation Study
In one paragraph

Article in Medicine, 2016. 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
1.2field-weighted citation impact, top 19% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 28 citations in OpenAlex.

  1. Pooled it
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  12. Calculation of LDL-Cholesterol vs. Direct Homogenous Assay.Journal of clinical laboratory analysis · 2017
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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

11 authors at 1 institution in 2 countries.

John Hoon RimFrom the Department of Laboratory Medicine, Yonsei University College of Medicine, Seoul, Korea (JHR, J-HK, S-GL), Department of Medicine (JHR), Department of Internal Medicine (Y-hL, B-WL, ESK, HCL, BSC), Department of Preventive Medicine (MHL), and Biostatistics Collaboration Unit, Yonsei University College of Medicine, Seoul, Korea (HYK, JC).
Yong-Ho Lee
Myung Ha Lee
Ha Yan Kim
Jiin Choi
Byung-Wan Lee
Eun Seok Kang
Hyun Chul Lee
Jeong-Ho Kim
Sang-Guk Lee
Bong-Soo Cha
Apple (Israel) · IL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Low-density lipoprotein cholesterol (LDL-C) is frequently estimated using the empirical Friedewald equation. We compared the accuracy of the novel equation named as the 180-cell method (180-c), which estimates LDL-C using a stratification approach, to those of 9 previously suggested formulas, including the Friedewald equation.We compared the accuracy of 10 equations by calculating intraclass correlation coefficient (ICC) and weighted kappa index in relation to direct LDL-C measurement values. Two independent populations used in the validation were the Severance Hospital LDL-C (SHL) registry (n = 164,358) and the Korea National Health and Nutrition Examination Survey (KNHANES) 2009 to 2010 (n = 3,854), each representing the hospital patient population and the general Korean population, respectively.The 180-c and DeLong equations showed the highest ICCs, indicating the best agreement with direct LDL-C measurement. The 180-c and Chen equations showed the highest kappa indices. For the hypertriglyceridemic subpopulation from SHL, the 180-c equation showed the best agreement with direct LDL-C measurement in terms of ICC.We compared the novel 180-c method for LDL-C estimation with 9 previous formulas in a non-US population as the first external validation. The 180-c equation, with Chen equation, appeared to be more accurate than the Friedewald equation. Although the DeLong equation showed better performance in the hypertriglyceridemic subpopulation, the 180-c equation performed appropriately in Asian population.

Indexed as

AdolescentAdultAgedAsian PeopleCholesterol, LDLFemaleHumansMaleMathematical ConceptsMiddle AgedYoung AdultCholesterol, LDL

Identifiers

PMID27057857
PMCPMC4998773
OpenAlexW2339382899

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.