Evidence map›Paper›PMID 24587911›Full record

ArticleSleep disorders2014

Sleep Quality and Quality of Life in COPD Patients with and without Suspected Obstructive Sleep Apnea.

Mohammad Ali Zohal, Zohreh Yazdi, Amir Mohammad Kazemifar, Parisa Mahjoob, Masomeh Ziaeeha

Abstract read
In one paragraph

Article in Sleep disorders, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
–field-weighted citation impact
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

17 citing papers in PubMed.

  1. Trial
  2. Poor Outcomes Among Patients With Chronic Obstructive Pulmonary Disease With Higher Risk for Undiagnosed Obstructive Sleep Apnea in the LOTT Cohort.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2019
    Trial
  3. Article
  4. Article
  5. Article
  6. Article
  7. Ambient Air Pollution Exposure and Sleep Quality in COPD.Chronic obstructive pulmonary diseases (Miami, Fla.) · 2023
    Article
  8. Review
  9. Review
  10. Article
  11. Article
  12. Article
  13. Physical Activity in Overlap Syndrome of COPD and Obstructive Sleep Apnea: Relationship With Markers of Systemic Inflammation.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2019
    Article
  14. Article
  15. Review
  16. Article
  17. 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

5 authors.

Mohammad Ali ZohalDepartment of Internal Medicine, Metabolic Disease Research Center, Qazvin University of Medical Sciences, Qazvin 3419759811, Iran.
Zohreh YazdiDepartment of Internal Medicine, Metabolic Disease Research Center, Qazvin University of Medical Sciences, Qazvin 3419759811, Iran.
Amir Mohammad KazemifarDepartment of Internal Medicine, Qazvin University of Medical Sciences, Qazvin 3419759811, Iran.
Parisa MahjoobDepartment of Internal Medicine, Qazvin University of Medical Sciences, Qazvin 3419759811, Iran.
Masomeh ZiaeehaDepartment of Health, Qazvin University of Medical Sciences, Qazvin 3419759811, Iran.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Present study was designed to obtain association between sleep apnea with sleep quality and quality of life in COPD patients. This cross-sectional descriptive study was conducted on 139 patients with COPD in a chest clinic of a university hospital. All patients were evaluated by pulmonary function test for determination of severity of their disease. Also, Berlin questionnaire, Epworth sleepiness scale, Pittsburgh Sleep Quality Index, and St. George Respiratory questionnaires (SGRQ) were employed for assessment of patients. Analysis of data showed that quality of sleep was significantly correlated with quality of life (P < 0.001). About half of the patients were at high risk for sleep apnea. The patients were divided into two groups according to the result of Berlin questionnaire. Significant differences were found between the groups for total score and each of three subscores of SGRQ suggesting worse quality of life in overlap syndrome (P < 0.001). Also, patients with overlap syndrome had worse quality of sleep compared to patients without it (8.1 ± 1.7 versus 6.2 ± 2.3; P < 0.001). Stepwise multiple regression analysis showed that severity of COPD, coexisting obstructive sleep apnea, and sleep quality accounted for the SGRQ significantly (r (2) (coefficient of determination) = 0.08, 0.21, and 0.18, resp.). It is recommended that patient with COPD be evaluated for sleep apnea and sleep disorders during routine examinations and followups.

Identifiers

PMID24587911
PMCPMC3920678

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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.