Evidence map›Paper›PMID 34977111›Full record

SynthesisFrontiers in nutrition2021

Anthocyanins, Anthocyanin-Rich Berries, and Cardiovascular Risks: Systematic Review and Meta-Analysis of 44 Randomized Controlled Trials and 15 Prospective Cohort Studies.

Lin Xu, Zezhong Tian, Hong Chen, Yimin Zhao, Yan Yang

Open access · goldAbstract readSystematic Review
In one paragraph

Synthesis in Frontiers in nutrition, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 8 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 8 pooled it
3.4field-weighted citation impact, top 6% 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

36 citing papers in PubMed, 8 syntheses or guidelines pooled it, 64 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Impact of a Chokeberry (Nutrients · 2025
    Pooled it
  4. Pooled it
  5. Pooled it
  6. Pooled it
  7. Pooled it
  8. Pooled it
  9. Nutrients · 2026
    Review
  10. Review
  11. Article
  12. Efficacy and Safety ofFoods (Basel, Switzerland) · 2026
    Review
  13. Review
  14. Clinical Evidence on the Health Effects ofAntioxidants (Basel, Switzerland) · 2026
    Review
  15. Review
  16. Article
  17. Review
  18. Review
  19. Article
  20. Review
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

5 authors at 1 institution in 1 country.

Lin XuSchool of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou, China.
Zezhong TianSchool of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou, China.
Hong ChenSchool of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou, China.
Yimin ZhaoSchool of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou, China.
Yan YangSchool of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou, China.
Sun Yat-sen University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

PubMed holds no abstract for this paper.

Indexed as

anthocyaninberrycardiovascular diseasesmeta-analysisprospective cohort studyrandomized controlled trial

Identifiers

PMID34977111
PMCPMC8714924
OpenAlexW4200118990

What Socratic 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 Socratic graph.