Evidence map›Paper›PMID 35059756›Full record

SynthesisEuropean journal of clinical pharmacology2022

The impact of omega-3 polyunsaturated fatty acids on primary dysmenorrhea: a systematic review and meta-analysis of randomized controlled trials.

Mohammad Mehdi Mohammadi, Roghayeh Mirjalili, Azam Faraji

Abstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in European journal of clinical pharmacology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
2.6field-weighted citation impact, top 11% 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

5 citing papers in PubMed, 13 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
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

3 authors at 2 institutions in 1 country.

Mohammad Mehdi MohammadiDepartment of Medical-Surgical Nursing, School of Nursing & Midwifery, Kermanshah University of Medical Sciences, Kermanshah, Iran.
Roghayeh MirjaliliYazd Cardiovascular Research Center, Shahid Sadoghi University of Medical Sciences, Yazd, Iran.
Azam FarajiDepartment of Nursing, School of Nursing & Midwifery, Kermanshah University of Medical Sciences, Kermanshah, Iran.ORCID http://orcid.org/0000-0001-5499-3747
Kermanshah University of Medical Sciences · IRShahid Sadoughi University of Medical Sciences and Health Services · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPrimary dysmenorrhea is one of the most common complaints in women. To date, no definitive results have been reported on the effect of omega-3 polyunsaturated fatty acids (n-3 PUFAs) on primary dysmenorrhea. Therefore, this study aimed to determine the effect of n-3 PUFAs on primary dysmenorrhea using a systematic review and meta-analysis.

methodsThis study is a systematic review and meta-analysis in which the electronic databases of PubMed, Scopus, Web of Science, ProQuest, Google Scholar, and SID were searched. In this regard, randomized controlled trials (RCTs) conducted to investigate the effect of n-3 PUFAs on primary dysmenorrhea were included. The quality of the studies was assessed using the Cochrane Collaboration's Risk of Bias Tool. Meta-analysis was performed based on the random-effects model using CMA software version 2.

resultsThe results of the meta-analysis showed that n-3 PUFAs reduce the severity of primary dysmenorrhea in women (SMD = -1.075, 95% CI: -1.871 to -0.279); meta-regression showed that the daily intake of n-3 PUFAs (β = 0.005, 95% CI 0.003 to 0.008, p < 0.001) and age of women (β = 0.256, 95% CI -0.157 to -0.354, p < 0.001) had a significant effect on the severity of primary dysmenorrhea.

conclusionThe present study showed that n-3 PUFAs could have a mild effect on the severity of primary dysmenorrhea in women. Furthermore, the highest effectiveness of treatment was seen at low doses of n-3 PUFAs, and with increasing daily intake, the effectiveness of treatment with n-3 PUFAs decreased. Another finding indicated that with the increasing age of women, n-3 PUFAs showed lesser effectiveness in reducing the severity of primary dysmenorrhea. The results of the present study provide valuable evidence to primary healthcare providers and health policymakers in the treatment of primary dysmenorrhea.

Indexed as

DysmenorrheaFatty Acids, Omega-3FemaleHumansRandomized Controlled Trials as TopicFatty Acids, Omega-3DysmenorrheaFatty acidsMeta-analysisOmega-3Systematic review

Identifiers

PMID35059756
OpenAlexW4206842056

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.