Evidence map›Paper›PMID 21143077›Full record

Trial reportThe Medical journal of Australia

Visiting a sauna: does inhaling hot dry air reduce common cold symptoms? A randomised controlled trial.

Daniel Pach, Bettina Knöchel, Rainer Lüdtke, Katja Wruck, Stefan N Willich, Claudia M Witt

Registry-linked trialOpen access · bronzeAbstract readComparative StudyRandomized Controlled Trial
In one paragraph

Trial report in The Medical journal of Australia. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00552981 (Effectiveness of Local Application of Warm Air in Patients With Common Cold), which is not on this map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact, top 86% 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.

NCT00552981 nacompletednot on this map

Effectiveness of Local Application of Warm Air in Patients With Common Cold (HELI Study)

TypeinterventionalSponsorCharite University, Berlin, GermanyRan2007 to 2009Enrolled157ConditionsCommon ColdArmsinhalation of warm air in a Finnish sauna, inhalation of ambient air in a Finnish sauna
3 · Its place in the literature

Who cites it

3 citing papers in PubMed, 10 citations in OpenAlex.

  1. Clinical Effects of Regular Dry Sauna Bathing: A Systematic Review.Evidence-based complementary and alternative medicine : eCAM · 2018
    Review
  2. Article
  3. 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

6 authors at 2 institutions in 1 country.

Daniel PachInstitute for Social Medicine, Epidemiology and Health Economics, Charité University Medical Center, Berlin, Germany. daniel.pach@charite.de
Bettina Knöchel
Rainer Lüdtke
Katja Wruck
Stefan N Willich
Claudia M Witt
Charité - Universitätsmedizin Berlin · DEKarl und Veronica Carstens-Stiftung · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo compare the efficacy of applying hot dry air versus dry air at room temperature to the throat of patients with a newly acquired common cold using a symptom severity score. DESIGN, SETTING AND

participantsA randomised single-blind controlled trial with a treatment duration of 3 days and a follow-up period of 4 days was conducted at a sauna in Berlin, Germany. Between November 2007 and March 2008 and between September 2008 and April 2009, 157 patients with symptoms of the common cold were randomly assigned to an intervention group (n=80) and a control group (n=77).

interventionsParticipants in the intervention group inhaled hot dry air within a hot sauna, dressed in a winter coat, whereas participants in the control group inhaled dry air at room temperature within a hot sauna, also dressed in a winter coat.

main outcome measuresArea under the curve (AUC) summarising symptom severity over time (Days 2, 3, 5 and 7), symptom severity scores for individual days, intake of medication for the common cold and general ill feeling.

resultsNo significant difference between groups was observed for AUC representing symptom severity over time (intervention group mean, 31.2 [SEM, 1.8]; control group mean, 35.1 [SEM, 2.3]; group difference, -3.9 [95% CI, -9.7 to 1.9]; P=0.19). However, significant differences between groups were found for medication use on Day 1 (P=0.01), symptom severity score on Day 2 (P=0.04), and participants' ratings of the effectiveness of the therapy on Day 7 (P=0.03).

conclusionInhaling hot air while in a sauna has no significant impact on overall symptom severity of the common cold.

trial registrationClinicalTrials.gov identifier NCT00552981.

Indexed as

AirInhalationSteam BathTemperatureAdolescentAdultCommon ColdFemaleHot TemperatureHumansMaleMiddle AgedResearch DesignSeverity of Illness IndexSingle-Blind MethodTreatment Outcome

Identifiers

PMID21143077
PMCPMC7168476
OpenAlexW2183899825

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.