Evidence map›Paper›PMID 34081733›Full record

ArticlePloS one2021

Prevalence and factors associated with NAFLD detected by vibration controlled transient elastography among US adults: Results from NHANES 2017-2018.

Xiaotao Zhang, Natalia I Heredia, Maya Balakrishnan, Aaron P Thrift

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed, 3 pooled it
13.4field-weighted citation impact, top 1% 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

66 citing papers in PubMed, 3 syntheses or guidelines pooled it, 110 citations in OpenAlex.

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  6. Diabetes and obesity reduce FIB-4 accuracy in MASLD referral pathways.JHEP reports : innovation in hepatology · 2026
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6 more citing papers are in PubMed but not listed here.

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

4 authors at 3 institutions in 1 country.

Xiaotao ZhangDepartment of Medicine, Section of Epidemiology and Population Sciences, Baylor College of Medicine, Houston, Texas, United States of America.ORCID 0000-0002-3968-5030
Natalia I HerediaDepartment of Health Promotion & Behavioral Sciences, The University of Texas Health Science Center at Houston, School of Public Health, Houston, Texas, United States of America.ORCID 0000-0001-8086-3700
Maya BalakrishnanDepartment of Medicine, Section of Gastroenterology and Hepatology, Baylor College of Medicine, Houston, Texas, United States of America.
Aaron P ThriftDepartment of Medicine, Section of Epidemiology and Population Sciences, Baylor College of Medicine, Houston, Texas, United States of America.
Baylor College of Medicine · USThe University of Texas Health Science Center at Houston · USThe University of Texas MD Anderson Cancer Center · US

Funding

Tumor Evolution and Metastasis ProgramP30CA016672 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI Scott Kopetz · 1985 to 2026
$290.8M
Translational Research Support CoreP30ES030285 · NIEHS · BAYLOR COLLEGE OF MEDICINE · PI Cheryl L. Walker · 2019 to 2026
$14.7M
NCI NIH HHS P30 CA016672NIEHS NIH HHS P30 ES030285
6 · The paper itself

Abstract

backgroundNon-alcoholic fatty liver disease (NAFLD) is increasingly common in the adult population. In the United States, the overall burden of NAFLD is unknown due to challenges with population-level NAFLD detection. The purpose of this study was to estimate prevalence of NAFLD and significant NAFLD fibrosis and identify factors associated with them in the U.S.

methodsData came from the 2017-2018 cycle of National Health and Nutrition Examination Survey. We defined NAFLD by controlled attenuation parameter (CAP) scores of ≥248 dB/m in absence of excessive alcohol use and viral hepatitis. We defined significant fibrosis as Vibration controlled transient elastography (VCTE) liver stiffness measurements (LSM) value ≥7.9 kPa. We calculated the adjusted odds ratio (OR) and 95% confidential intervals (CI) for associations with NAFLD and significant NAFLD fibrosis using multivariable logistic regression.

resultsOverall, among 4,024 individuals aged ≥20 years included in the analysis, 56.7% had NAFLD by CAP. In comparison, when defined by elevated liver enzymes, NAFLD prevalence was 12.4%. The prevalence of significant NAFLD fibrosis by VCTE LSM was 14.5%. NAFLD prevalence increased with age, was higher among men than women and among Hispanics compared with non-Hispanic whites. Individuals who were obese, had metabolic syndrome (MetS) and type 2 diabetes were more likely to have NAFLD compared to those that who were not obese or without MetS/diabetes. Inadequate physical activity (OR = 1.57, 95% CI: 1.18-2.08) was also a factor associated with NAFLD. MetS, high waist circumstance, diabetes and hypertension were independently associated with significant NAFLD fibrosis.

conclusionsNAFLD and significant NAFLD fibrosis are highly prevalent in U.S. general population.

Indexed as

Elasticity Imaging TechniquesAdultAgedAged, 80 and overCross-Sectional StudiesDiabetes Mellitus, Type 2FemaleHumansHypertensionLiverLiver CirrhosisMaleMetabolic SyndromeMiddle AgedNon-alcoholic Fatty Liver DiseaseNutrition Surveys

Identifiers

PMID34081733
PMCPMC8174685
OpenAlexW3164418011

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.