Evidence map›Paper›PMID 33540413›Full record

Trial reportRespiration; international review of thoracic diseases

Health Preference Measures in Patients with Obstructive Sleep Apnea Syndrome Undergoing Continuous Positive Airway Pressure Therapy: Data from a Randomized Trial.

Fabienne L Huber, Michael Furian, Malcolm Kohler, Tsogyal D Latshang, Yvonne Nussbaumer-Ochsner, Alexander Turk, Otto D Schoch, Irene Laube, Robert Thurnheer, Konrad E Bloch

Open access · hybridAbstract readMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Respiration; international review of thoracic diseases. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 3 pooled it
0.8field-weighted citation impact, top 29% 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

7 citing papers in PubMed, 3 syntheses or guidelines pooled it, 11 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. An empirical comparison of sleep-specific versus generic quality of life instruments among Australians with sleep disorders.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2024
    Article
  5. Use of the visual analogue scale for health state valuation: a scoping review.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2023
    Article
  6. Article
  7. 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

10 authors at 6 institutions in 1 country.

Fabienne L HuberDepartment of Respiratory Medicine, Sleep Disorders Center, University Hospital Zurich, Zurich, Switzerland.
Michael FurianDepartment of Respiratory Medicine, Sleep Disorders Center, University Hospital Zurich, Zurich, Switzerland.
Malcolm KohlerDepartment of Respiratory Medicine, Sleep Disorders Center, University Hospital Zurich, Zurich, Switzerland.
Tsogyal D LatshangDepartment of Respiratory Medicine, Sleep Disorders Center, Cantonal Hospital Chur, Chur, Switzerland.
Yvonne Nussbaumer-OchsnerDepartment of Internal Medicine, Cantonal Hospital Schaffhausen, Schaffhausen, Switzerland.
Alexander TurkDepartment of Internal Medicine, See-Spital, Horgen, Switzerland.
Otto D SchochDepartment of Respiratory Medicine, Center for Sleep Medicine, Cantonal Hospital St. Gallen, St. Gallen, Switzerland.
Irene LaubeDepartment of Respiratory Medicine, Sleep Disorders Center, Triemli Hospital, Zurich, Switzerland.
Robert ThurnheerDepartment of Respiratory Medicine, Sleep Disorders Center, Cantonal Hospital Münsterlingen, Münsterlingen, Switzerland.
Konrad E BlochDepartment of Respiratory Medicine, Sleep Disorders Center, University Hospital Zurich, Zurich, Switzerland, konrad.bloch@usz.ch.
University Hospital of Zurich · CHKantonsspital Münsterlingen · CHSee-Spital · CHSpitäler Schaffhausen · CHTriemli Hospital · CHUniversity of St.Gallen · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn patients with obstructive sleep apnea syndrome (OSAS), the preference-based, health-related quality of life in terms of utility has not been extensively studied.

objectiveTo address this point, we compared the performance of different instruments assessing utility in patients with OSAS undergoing continuous positive airway pressure (CPAP) therapy. MATERIALS AND

methodsData of 208 patients with OSAS (28 women, mean ± SE age 54.4 ± 0.7 years, apnea-hypopnea index (AHI) 51.9 ± 1.8/h, Epworth sleepiness score 13.4 ± 0.2) participating in a randomized trial of different CPAP modalities over 2 years were analyzed. Evaluations included sleep studies, Epworth sleepiness scale, and several utility instruments that measure subjective health preference on a scale ranging from 1 (most preferred and perfect health) to 0 (least preferred and very poor health).

resultsAfter 2 years of CPAP therapy, the mean ± SE AHI was 6.7 ± 1.5/h and Epworth score 7.9 ± 0.4, both p < 0.001 versus baseline. Baseline utilities and changes (95% confidence interval) after 2 years of CPAP therapy were EuroQol 5-dimensions 0.79 ± 0.01, 0.02 (0.00-0.05, p = 0.064); short-form 6-dimension medical outcome questionnaire 0.72 ± 0.01, 0.06 (0.04-0.08, p < 0.001); Euro-thermometer visual analog scale 0.70 ± 0.01, 0.09 (0.07-0.12, p < 0.001); time trade-off 0.82 ± 0.01, 0.03 (0.01-0.06, p = 0.002); and standard gamble 0.82 ± 0.01, -0.01 (-0.03 to 0.02, p = 0.712).

conclusionThe short-form 6-dimensions questionnaire, the Euro-thermometer, and the time trade-off instruments reflected the major clinical improvements in OSAS, while the EuroQoL 5-dimensions and standard gamble tests were not sensitive to CPAP effects. These results indicate that the evaluation of utility of a treatment for OSAS depends critically on the instrument used, which is important from an individual and societal perspective.

Indexed as

Diagnostic Self EvaluationQuality of LifeSleep Apnea, ObstructiveContinuous Positive Airway PressureCost-Benefit AnalysisFemaleHealthy Life ExpectancyHumansMaleMiddle AgedPatient Outcome AssessmentPatient PreferenceQuality-Adjusted Life YearsTreatment OutcomeVisual Analog ScaleCost-utility analysisHealth-related quality of lifeNoninvasive ventilationSleep apnea

Identifiers

PMID33540413
PMCPMC8117386
OpenAlexW3128547909

What OpenQuestion holds

Textmetadata
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.