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Indoor Temperature and Sleep Apnea

This study has been completed.
Swedish Heart Lung Foundation
Information provided by:
Umeå University Identifier:
First received: October 12, 2007
Last updated: April 13, 2011
Last verified: April 2011
The purpose of this study is to test whether different indoor temperature affect the frequency of sleep apnea.

Condition Intervention
Obstructive Sleep Apnea
Other: 16
Other: indoor temperature of 20 degrees celcius
Other: indoor temperature of 24 degrees celcius

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Double Blind (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Prevention
Official Title: Indoor Temperature and Sleep Apnea

Resource links provided by NLM:

Further study details as provided by Umeå University:

Primary Outcome Measures:
  • Apnea hypopnea index, karolinska sleepiness scale [ Time Frame: one night ]

Secondary Outcome Measures:
  • Sleep stages, sleep efficiency [ Time Frame: One night ]

Enrollment: 40
Study Start Date: January 2005
Study Completion Date: January 2011
Primary Completion Date: December 2010 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: 16
indoor temperature of 16 degrees celcius
Other: 16
indoor temperature of 16 degrees celcius
Experimental: 20
indoor temperature 20 degrees celcius
Other: indoor temperature of 20 degrees celcius
indoor temperature of 20 degrees celcius
Experimental: 24
indoor temperature of 24 degrees celcius
Other: indoor temperature of 24 degrees celcius
indoor temperature of 24 degrees celcius


Ages Eligible for Study:   Child, Adult, Senior
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Obstructive sleep apnea

Exclusion Criteria:

  • Central sleep apnea
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Please refer to this study by its identifier: NCT00544752

Dept of respiratory medicine
Umeå, Sweden, SE 901 85
Sponsors and Collaborators
Umeå University
Swedish Heart Lung Foundation
Principal Investigator: Karl A Franklin, MD, PhD Dept Respiratory Medicine, University Hospital, Umeå
  More Information

Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: Ass Prof Karl Franklin, Umeå University Identifier: NCT00544752     History of Changes
Obsolete Identifiers: NCT01315600
Other Study ID Numbers: 03-563
Study First Received: October 12, 2007
Last Updated: April 13, 2011

Keywords provided by Umeå University:
sleep apnea syndromes, ambient indoor temperature

Additional relevant MeSH terms:
Sleep Apnea Syndromes
Sleep Apnea, Obstructive
Respiration Disorders
Respiratory Tract Diseases
Signs and Symptoms, Respiratory
Signs and Symptoms
Sleep Disorders, Intrinsic
Sleep Wake Disorders
Nervous System Diseases processed this record on April 26, 2017