Evidence map›Paper›PMID 31075151›Full record

Trial reportPloS one2019

Blame it on the weather? The association between pain in fibromyalgia, relative humidity, temperature and barometric pressure.

Asbjørn J Fagerlund, Maria Iversen, Andrea Ekeland, Connie Malèn Moen, Per M Aslaksen

Abstract readClinical Trial
In one paragraph

Trial report in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
–field-weighted citation impact
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

28 citing papers in PubMed.

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  12. Whether Weather Matters with Migraine.Current pain and headache reports · 2024
    Review
  13. Article
  14. Article
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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.

Asbjørn J FagerlundNorwegian Center for E-Health Research, Tromsø, Norway.
Maria IversenDepartment of Psychology, UiT The Arctic University of Norway UiT, Tromsø, Norway.
Andrea EkelandDepartment of Psychology, UiT The Arctic University of Norway UiT, Tromsø, Norway.
Connie Malèn MoenDepartment of Psychology, UiT The Arctic University of Norway UiT, Tromsø, Norway.
Per M AslaksenDepartment of Psychology, UiT The Arctic University of Norway UiT, Tromsø, Norway.ORCID 0000-0002-9299-7260

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Self-reported pain levels in patients with fibromyalgia may change according to weather conditions. Previous studies suggest that low barometric pressure (BMP) is significantly related to increased pain, but that the contribution of changes in BMP has limited clinical relevance. The present study examined whether BMP influenced variability in perceived stress, and if stress levels moderated or mediated the relationship between BMP and pain. Forty-eight patients with fibromyalgia enrolled in a randomized controlled trail (RCT) reported pain and emotional state three times daily with mobile phone messages for a 30-consecutive day period prior to the start of the treatment in the RCT. The patients were unaware that weather data were collected simultaneously with pain and emotional reports. The results showed that lower BMP and increased humidity were significantly associated with increased pain intensity and pain unpleasantness, but only BMP was associated with stress levels. Stress levels moderated the impact of lower BMP on pain intensity significantly, where higher stress was associated with higher pain. Significant individual differences were present shown by a sub-group of patients (n = 8) who reacted opposite compared to the majority of patients (n = 40) with increased pain reports to an increase in BMP. In sum, lower BMP was associated with increased pain and stress levels in the majority of the patients, and stress moderated the relationship between BMP and pain at the group-level. Significant individual differences in response to changes in BMP were present, and the relation between weather and pain may be of clinical relevance at the individual level.

Indexed as

Atmospheric PressureHumidityWeatherAdultFemaleFibromyalgiaHumansMaleMiddle AgedPainPain Measurement

Identifiers

PMID31075151
PMCPMC6510434

What OpenQuestion holds

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Registered trials

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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.