Evidence map›Paper›PMID 31138380›Full record

ArticleJournal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine2019

Air Pollutants Are Associated With Obstructive Sleep Apnea Severity in Non-Rapid Eye Movement Sleep.

Wan-Ju Cheng, Shinn-Jye Liang, Chun-Sen Huang, Cheng-Li Lin, Li-Chung Pien, Liang-Wen Hang

Open access · bronzeAbstract read
In one paragraph

Article in Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 14% 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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 35 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Impact of Ambient Air Pollution on Obstructive Sleep Apnea Surgery: A Longitudinal Study.ORL; journal for oto-rhino-laryngology and its related specialties · 2025
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Examining the influence of built environment on sleep disruption.Environmental epidemiology (Philadelphia, Pa.) · 2023
    Article
  9. Article
  10. Review
  11. Differentially expressed circular RNAs in air pollution-exposed rat embryos.Environmental science and pollution research international · 2019
    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

6 authors at 2 institutions in 1 country.

Wan-Ju ChengDepartment of Psychiatry, China Medical University Hospital, Taichung, Taiwan.
Shinn-Jye LiangDepartment of Respiratory Therapy, College of Health Care, China Medical University, Taichung, Taiwan.
Chun-Sen HuangSleep Medicine Center, Department of Pulmonary and Critical Care Medicine, China Medical University Hospital, Taichung, Taiwan.
Cheng-Li LinManagement Office for Health Data, China Medical University Hospital, Taichung, Taiwan.
Li-Chung PienDepartment of Nursing, Cardinal Tien Junior College of Healthcare and Management, New Taipei City, Taiwan.
Liang-Wen HangDepartment of Respiratory Therapy, College of Health Care, China Medical University, Taichung, Taiwan.
China Medical University · TWCardinal Tien College of Healthcare and Management · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

STUDY

objectivesThe relationship between seasonal variation of obstructive sleep apnea and ambient temperature and pollutants has been inconsistent in previous studies. It is also unknown whether the seasonal variation in apnea-hypopnea index influences continuous positive airway pressure treatment dose. This study aims to examine the seasonality of obstructive sleep apnea and continuous positive airway pressure treatment, and the association between air pollutants and apnea-hypopnea index in adults with different sleep apnea severity during different sleep stages.

methodsPolysomnography of 5,413 patients referred to one sleep center during 2008-2015 were examined retrospectively. Ambient conditions and air pollutants levels were collected from the official air condition surveillance database. Cosinor analysis was used to examine seasonal variances. The general linear model was used to examine associations between air conditions and apnea-hypopnea index adjusted for seasonality. Models for apnea-hypopnea index in different sleep stages, sex groups, and obstructive sleep apnea severity groups were analyzed separately.

resultsSeasonal variations for continuous positive airway pressure treatment were not significant. Particulate matter less than or equal to 10 μm, ozone, sulfur dioxide, and relative humidity were associated with apnea-hypopnea index only in patients with severe obstructive sleep apnea. The association was significant only in non-rapid eye movement sleep.

conclusionsAn adjustment for continuous positive airway treatment dose by season is not warranted. Protection for air pollutant-vulnerable groups should be provided. The exact mechanism of the associations between apnea-hypopnea index and air conditions only in non-rapid eye movement sleep must be clarified.

Indexed as

AdultAir PollutantsAir PollutionContinuous Positive Airway PressureEnvironmental ExposureFemaleHumansMaleMiddle AgedParticulate MatterPolysomnographyRetrospective StudiesSeasonsSleep Apnea, ObstructiveSleep StagesAir PollutantsParticulate Matterapnea-hypopnea indexparticulate mattersleep-disordered breathingsleep stages

Identifiers

PMID31138380
PMCPMC6557646
OpenAlexW2951223500

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.