Evidence map›Paper›PMID 33406811›Full record

ArticleObstetrics & gynecology science2021

Role of vitamin D and calcium in the relief of primary dysmenorrhea: a systematic review.

Fatemeh Abdi, Marjan Akhavan Amjadi, Farzaneh Zaheri, Fatemeh Alsadat Rahnemaei

Open access · diamondAbstract read
In one paragraph

Article in Obstetrics & gynecology science, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 4 pooled it
7.8field-weighted citation impact, top 2% 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

18 citing papers in PubMed, 4 syntheses or guidelines pooled it, 44 citations in OpenAlex.

  1. Pooled it
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  4. Pooled it
  5. Trial
  6. Trial
  7. Article
  8. Review
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  12. Article
  13. Article
  14. Vitamin Effects in Primary Dysmenorrhea.Life (Basel, Switzerland) · 2023
    Review
  15. Article
  16. Disease Burden of Dysmenorrhea: Impact on Life Course Potential.International journal of women's health · 2023
    Review
  17. Article
  18. 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

4 authors at 4 institutions in 1 country.

Fatemeh AbdiNon-communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran.
Marjan Akhavan AmjadiDepartment of Midwifery, Faculty of Nursing and Midwifery, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
Farzaneh ZaheriMidwifery Department, Kurdistan University of Medical Sciences, Sanandaj, Iran.
Fatemeh Alsadat RahnemaeiStudent Research Committee, School of Nursing and Midwifery, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Iranshahr University · IRIslamic Azad University Medical Branch of Tehran · IRJahrom University of Medical Sciences · IRKurdistan University of Medical Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Dysmenorrhea is one of the well-established problems among women of reproductive age and can have adverse effects on the quality of life of the individual. Some studies suggest a relationship between vitamin D (Vit D) and calcium deficiency and the emergence of early dysmenorrhea. Accordingly, a systematic study was performed to investigate the role of calcium and Vit D in the relief of primary dysmenorrhea. A systematic literature search was performed in PubMed, Web of Science, Scopus, Science Direct, and Google Scholar for papers published between 2010 and 2020. The Consolidated Standards of Reporting Trials and Strengthening the Reporting of Observational Studies in Epidemiology checklists were used to assess the quality of the studies. The risk of bias was assessed using the Cochrane risk-of-bias assessment tool. Low calcium levels lead to an increase in uterine muscle contraction and can cause pain after decreased uterine blood flow. Furthermore, low levels of Vit D can increase primary dysmenorrhea by increasing prostaglandin production or reducing intestinal calcium absorption. That being the case, Vit D and calcium intake can be effective in reducing the severity of primary dysmenorrhea and in reducing the rate of analgesic use. Low levels of Vit D and calcium are inversely related to the severity of primary dysmenorrhea, and Vit D and calcium intake can reduce the severity of primary dysmenorrhea and its associated systemic symptoms. Therefore, the use of calcium and Vit D supplements can be recommended to relieve dysmenorrhea.

Indexed as

CalciumPrimary dysmenorrheaVitamin D

Identifiers

PMID33406811
PMCPMC7834752
OpenAlexW3119014425

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.