Evidence map›Paper›PMID 35165428›Full record

ArticleEuropean journal of clinical nutrition2022

Assessment of vitamin C effects on pneumonia and COVID-19 using Mendelian randomization: analysis may be misleading.

Harri Hemilä, Elizabeth Chalker

Open access · bronzeAbstract readLetterComment
In one paragraph

Article in European journal of clinical nutrition, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed, 1 pooled it
1.0field-weighted citation impact, top 28% 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

2 citing papers in PubMed, 1 synthesis or guideline pooled it, 7 citations in OpenAlex.

  1. Pooled it
  2. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors at 2 institutions in 2 countries.

Harri HemiläDepartment of Public Health, University of Helsinki, POB 20, Helsinki, FI, 00014, Finland. harri.hemila@helsinki.fi.ORCID http://orcid.org/0000-0002-4710-307X
Elizabeth ChalkerBiological Data Science Institute, Australian National University, Canberra, ACT, 2601, Australia. elizabeth.chalker@gmail.com.ORCID http://orcid.org/0000-0003-1593-3770
Australian National University · AUUniversity of Helsinki · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

PubMed holds no abstract for this paper.

Indexed as

Ascorbic AcidCOVID-19HumansMendelian Randomization AnalysisPolymorphism, Single NucleotideVitamin DAscorbic AcidVitamin D

Identifiers

PMID35165428
PMCPMC8853427
OpenAlexW4212868095

What OpenQuestion holds

Textmetadata
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.