Evidence map›Paper›PMID 33855195›Full record

Trial reportEndocrinology, diabetes & metabolism2021

Effect of 12-week continuous positive airway pressure therapy on glucose levels assessed by continuous glucose monitoring in people with type 2 diabetes and obstructive sleep apnoea; a randomized controlled trial.

Anne Margareta Banghøj, Christoffer Krogager, Peter Lommer Kristensen, Klavs Würgler Hansen, Esben Laugesen, Jesper Fleischer, Simon Lebech Cichosz, Per Løgstrup Poulsen, Martin Glymer Kirkegaard, Birger Thorsteinsson and 1 more

Open access · goldAbstract readMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Endocrinology, diabetes & metabolism, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 3 pooled it
1.3field-weighted citation impact, top 20% 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

12 citing papers in PubMed, 3 syntheses or guidelines pooled it, 24 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. The combination of atomoxetine and oxybutynin for the treatment of obstructive sleep apnea in children with Down syndrome.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2023
    Trial
  5. Trial
  6. Trial
  7. Article
  8. Article
  9. Continuous Glucose Monitoring Among People with and without Diabetes Mellitus and Sleep Apnoea.Diabetes therapy : research, treatment and education of diabetes and related disorders · 2025
    Review
  10. Article
  11. A Structured Narrative Review of the OSA-T2DM Axis.Journal of clinical medicine · 2025
    Review
  12. Obstructive Sleep Apnea as a Cause of Nocturnal Hyperglycemia: A Case Study.Clinical diabetes : a publication of the American Diabetes Association · 2023
    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

11 authors at 7 institutions in 1 country.

Anne Margareta BanghøjDepartment of Endocrinology and Nephrology, Nordsjaellands Hospital, Hillerød, Denmark.ORCID https://orcid.org/0000-0003-2070-2424
Christoffer KrogagerDepartment of Clinical Medicine, Aarhus University, Aarhus, Denmark.
Peter Lommer KristensenDepartment of Endocrinology and Nephrology, Nordsjaellands Hospital, Hillerød, Denmark.
Klavs Würgler HansenDiagnostic Centre, Regional Hospital, Silkeborg, Denmark.
Esben LaugesenDepartment of Endocrinology and Internal Medicine, Aarhus University Hospital, Aarhus, Denmark.
Jesper FleischerSteno Diabetes Center Aarhus, Aarhus, Denmark.ORCID https://orcid.org/0000-0002-5261-3082
Simon Lebech CichoszDepartment of Health Science and Technology, Aalborg University, Aalborg, Denmark.
Per Løgstrup PoulsenDepartment of Endocrinology and Internal Medicine, Aarhus University Hospital, Aarhus, Denmark.
Martin Glymer KirkegaardSleep Disorders Clinic, Elective Surgery Centre, Regional Hospital Silkeborg, Silkeborg, Denmark.
Birger ThorsteinssonDepartment of Endocrinology and Nephrology, Nordsjaellands Hospital, Hillerød, Denmark.
Lise TarnowSteno Diabetes Center Sjaelland, Holbaek, Denmark.
Steno Diabetes Centers · DKNordsjællands Hospital · DKRegionshospitalet Silkeborg · DKAalborg University · DKAarhus University · DKAarhus University Hospital · DKUniversity of Copenhagen · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Aim: Obstructive sleep apnoea (OSA) is frequent in type 2 diabetes (T2D). The aim was to investigate the effect of a 12-week treatment with continuous positive airway pressure (CPAP) on glycaemic control assessed by continuous glucose monitoring (CGM), HbA1c and fasting blood glucose in patients with T2D and newly detected OSA. Methods: In a randomized controlled multicentre study, 72 participants with T2D and moderate to severe OSA (78% male, age 62 ± 7, AHI 35 ± 15) were recruited from outpatient clinics in three Danish hospitals and were randomized to CPAP intervention or control. The main outcome was glycaemic control assessed by 6 days CGM at baseline and after 12-week therapy, as well as by HbA1c and fasting blood glucose. Results: No significant changes were found in average glucose levels, time in glucose range, time with hypoglycaemia, time with hyperglycaemia or coefficient of variability. HbA1c decreased 0.7 mmol/mol (0.07%; Conclusions: CPAP treatment for 12 weeks does not significantly change glycaemic control in patients with type 2 diabetes and OSA.

Indexed as

Blood GlucoseBlood Glucose Self-MonitoringContinuous Positive Airway PressureGlycemic ControlAgedDiabetes Mellitus, Type 2FemaleGlycated HemoglobinHumansMaleMiddle AgedNegative ResultsSeverity of Illness IndexSleep Apnea, ObstructiveTime FactorsBlood GlucoseGlycated Hemoglobinhemoglobin A1c protein, humancontinuous glucose monitoringcontinuous positive airway pressureobstructive sleep apnoeatype 2 diabetes

Identifiers

PMID33855195
PMCPMC8029513
OpenAlexW3048347636

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.