Letter: does vitamin D have a potential role against COVID-19? Authors' reply.

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.

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.

Who cites it

5 citing papers in PubMed.

1. Vitamin D status is not associated with clinical severity of COVID-19 in pregnant women.European journal of nutrition · 2022
   Article
2. Vitamin D and COVID-19: is there a role?Journal of diabetes and metabolic disorders · 2021
   Review
3. Can Vitamin D Deficiency Increase the Susceptibility to COVID-19?Frontiers in physiology · 2021
   Article
4. Investigating the Potential for Ultraviolet Light to Modulate Morbidity and Mortality From COVID-19: A Narrative Review and Update.Frontiers in cardiovascular medicine · 2020
   Review
5. A Basic Review of the Preliminary Evidence That COVID-19 Risk and Severity Is Increased in Vitamin D Deficiency.Frontiers in public health · 2020
   Review

Corrections and comments

• Comment on
  Letter: does vitamin D have a potential role against COVID-19?2020

Authors and funding

2 authors.

Funding

No grant is acknowledged in the PubMed record.

Abstract

PubMed holds no abstract for this paper.