Evidence map›Paper›PMID 30821652›Full record

Trial reportInternational journal of circumpolar health2019

Qualitative identification and characterisation of self-reported symptoms arising in humans during experimental exposure to cold air.

Rita Sjöström, Lars Söderström, Carolina Klockmo, Alexander Patrician, Thomas Sandström, Glenn Björklund, Helen Hanstock, Nikolai Stenfors

Open access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in International journal of circumpolar health, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.5field-weighted citation impact, top 21% 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

6 citing papers in PubMed, 13 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Article
  6. 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

8 authors at 3 institutions in 1 country.

Rita Sjöströma Department of Community Medicine and Rehabilitation , Umeå University , Umeå , Sweden.
Lars Söderströmb Unit of Research, Education and Development , Östersund Hospital , Östersund , Sweden.ORCID 0000-0002-6474-6501
Carolina Klockmoc Research and Development Unit , Kommunförbundet Västernorrland , Härnösand , Sweden.
Alexander Patriciand Swedish Winter Sports Research Centre, Department of Health Sciences , Mid Sweden University , Östersund , Sweden.
Thomas Sandströme Department of Public Health and Clinical Medicine, Medicine , Umeå University , Umeå , Sweden.
Glenn Björklundd Swedish Winter Sports Research Centre, Department of Health Sciences , Mid Sweden University , Östersund , Sweden.
Helen Hanstockd Swedish Winter Sports Research Centre, Department of Health Sciences , Mid Sweden University , Östersund , Sweden.
Nikolai Stenforse Department of Public Health and Clinical Medicine, Medicine , Umeå University , Umeå , Sweden.
Mid Sweden University · SEÖstersunds Hospital · SEUmeå University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundExposure to cold air is associated with increased morbidity and mortality in the general population. It is difficult to study the effects of whole-body exposure to cold air under controlled conditions in real life.

objectivesThe aim of this study was to (1) explore and describe the experience of symptoms in humans during experimental and controlled exposures to cold air, by using controlled environmental chamber exposures and qualitative methodology, and to (2) categorise the symptoms.

methodThe study used a randomised, double blind design, in which 34 subjects undertook rest and moderate-intensity exercise in an environmental chamber set to two or three different temperatures (0, -10, and -17°C) on separate occasions. During the chamber exposures, subjects were interviewed. Qualitative content analysis was selected as the method of analysis.

findingsSubjects reported 50 distinct symptoms during the exposures. The symptoms were grouped into ten sub-categories and two major categories; airway versus whole-body symptoms.

conclusionWe have identified a broad range of symptoms in humans undertaking rest and moderate-intensity exercise at sub-zero temperatures. The symptoms and their categories may well be used to more extensively and quantitatively map cold-induced morbidity.

Indexed as

Cold TemperatureEnvironmental ExposureAdultAgedAsthmaDouble-Blind MethodExerciseFemaleHumansMaleMiddle AgedOxygen ConsumptionRestRhinitis, AllergicSelf ReportCold temperatureenvironmental chamberhealthyphysical activityqualitative analysisrespiratory disease

Identifiers

PMID30821652
PMCPMC6407591
OpenAlexW2918344834

What OpenQuestion holds

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LicenceCC BY-NC
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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.