Evidence map›Paper›PMID 34943471›Full record

ArticleDiagnostics (Basel, Switzerland)2021

Assessing Liver Fibrosis Using the FIB4 Index in the Community Setting.

Albert Blanco-Grau, Pablo Gabriel-Medina, Francisco Rodriguez-Algarra, Yolanda Villena, Rosa Lopez-Martínez, Salvador Augustín, Mònica Pons, Luz-Maria Cruz, Ariadna Rando-Segura, Belen Enfedaque and 5 more

Abstract read
In one paragraph

Article in Diagnostics (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
49citing 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

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

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  19. Correlations BetweenLife (Basel, Switzerland) · 2025
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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

15 authors.

Albert Blanco-GrauClinical Biochemistry (Clinical Laboratories), Vall d'Hebron University Hospital, 08035 Barcelona, Spain.
Pablo Gabriel-MedinaClinical Biochemistry (Clinical Laboratories), Vall d'Hebron University Hospital, 08035 Barcelona, Spain.
Francisco Rodriguez-AlgarraBlizard Institute, Barts and The London School of Medicine and Dentistry, London E1 2AT, UK.ORCID 0000-0002-4134-2141
Yolanda VillenaClinical Biochemistry (Clinical Laboratories), Vall d'Hebron University Hospital, 08035 Barcelona, Spain.ORCID 0000-0003-0925-0498
Rosa Lopez-MartínezClinical Biochemistry (Clinical Laboratories), Vall d'Hebron University Hospital, 08035 Barcelona, Spain.
Salvador AugustínLiver Unit, Department of Internal Medicine, Vall d'Hebron University Hospital, 08035 Barcelona, Spain.
Mònica PonsLiver Unit, Department of Internal Medicine, Vall d'Hebron University Hospital, 08035 Barcelona, Spain.ORCID 0000-0002-0985-3320
Luz-Maria CruzClinical Biochemistry (Clinical Laboratories), Vall d'Hebron University Hospital, 08035 Barcelona, Spain.
Ariadna Rando-SeguraClinical Microbiology (Clinical Laboratories), Vall d'Hebron University Hospital, 08035 Barcelona, Spain.ORCID 0000-0003-4555-7286
Belen EnfedaqueCommunity and Primary Care Management, Catalan Institute of Health, 08028 Barcelona, Spain.
Mar RiveiroLiver Unit, Department of Internal Medicine, Vall d'Hebron University Hospital, 08035 Barcelona, Spain.ORCID 0000-0001-9309-2052
Ernesto CasisClinical Biochemistry (Clinical Laboratories), Vall d'Hebron University Hospital, 08035 Barcelona, Spain.
Roser Ferrer-CostaClinical Biochemistry (Clinical Laboratories), Vall d'Hebron University Hospital, 08035 Barcelona, Spain.ORCID 0000-0002-8925-3172
Maria ButiLiver Unit, Department of Internal Medicine, Vall d'Hebron University Hospital, 08035 Barcelona, Spain.
Francisco Rodriguez-FriasClinical Biochemistry (Clinical Laboratories), Vall d'Hebron University Hospital, 08035 Barcelona, Spain.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Liver disease is frequently asymptomatic, challenging early identification in the primary care setting. The fibrosis 4 (FIB4) index is a liver fibrosis biomarker that is a potential alternative to liver biopsy for diagnosing and managing liver disease. This study aimed to calculate the FIB4 index for screening individuals at high risk of liver disease at the community level. This was a retrospective real-world study analyzing blood and serum test results from a central laboratory. The primary outcome was the number of individuals within each risk category for hepatic fibrosis: high risk (FIB4 ≥ 3.25) and low risk (FIB4 < 1.3). The analysis included samples from 31,753 patients, of which 18,102 were aged 40 to 75 years. In these patients, the FIB4 index had been explicitly requested in 1852 (10.2%) cases and estimated ad hoc in the rest. Of the 263 (1.5%) cases with FIB4 ≥ 3.25, the FIB4 index was requested in 46 (17.5%), and 52 (19.8%) showed evidence of liver fibrosis in their medical records, while the rest did not report any data regarding liver fibrosis. FIB4 is a simple score that can play a role as a "red flag" for early identification of patients at high risk of advanced liver fibrosis and their referral to specialized care.

Indexed as

chronic liver diseasefibrosis 4 scoreliver fibrosismetabolic associated fatty liver disease (MAFLD)screening

Identifiers

PMID34943471
PMCPMC8700445

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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.