Evidence map›Paper›PMID 34913867›Full record

ArticleJournal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine2022

Fraction of apnea is associated with the required continuous positive airway pressure level and reflects upper airway collapsibility in patients with obstructive sleep apnea.

Hideaki Nakayama, Youichiro Takei, Mina Kobayashi, Mariko Yanagihara, Yuichi Inoue

Open access · bronzeAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact, top 79% 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

1 citing paper in PubMed, 0 citations in OpenAlex.

  1. 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 at 1 institution in 1 country.

Hideaki NakayamaDepartment of Somnology, Tokyo Medical University, Tokyo, Japan.
Youichiro TakeiJapan Somnology Center, Institute of Neuropsychiatry, Tokyo, Japan.
Mina KobayashiJapan Somnology Center, Institute of Neuropsychiatry, Tokyo, Japan.
Mariko YanagiharaDepartment of Somnology, Tokyo Medical University, Tokyo, Japan.
Yuichi InoueDepartment of Somnology, Tokyo Medical University, Tokyo, Japan.
Tokyo Medical University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

STUDY

objectivesWe aimed to determine whether the fraction of apnea (Fapnea) could be used as an alternative index to reflect upper airway collapsibility.

methodsWe retrospectively recruited 161 patients (16 women, mean age 47.8 years, body mass index [BMI] 28.0 kg/m

resultsBMI and Fapnea were the only significant factors that predicted the REM_CPAP level (adjusted

conclusionsFapnea could significantly predict the CPAP levels during both REM and non-REM sleep, which likely reflects the upper airway collapsibility, independent of the BMI. CITATION: Nakayama H, Takei Y, Kobayashi M, Yanagihara M, Inoue Y. Fraction of apnea is associated with the required continuous positive airway pressure level and reflects upper airway collapsibility in patients with obstructive sleep apnea.

Indexed as

Continuous Positive Airway PressureSleep Apnea, ObstructiveFemaleHumansMaleMiddle AgedPolysomnographyRetrospective StudiesSleep, REMFapneaNREM sleepobstructive sleep apneaREM sleepupper airway collapsibility

Identifiers

PMID34913867
PMCPMC9059592
OpenAlexW4200178189

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.