Evidence map›Paper›PMID 41702830›Full record

Observational studyThe clinical respiratory journal2026

Novel Type IV Monitoring Device With Advanced Oximetry Indicators Offers Accurate Diagnosis of Obstructive Sleep Apnea in Adults.

Xu Wu, Hailiang Qin, Huai Huang, Jing Jiang, Xiaodan Wu, Zilong Liu, Min Li, Shanqun Li

Abstract readObservational Study
PubMed Full text at PMC Publisher
In one paragraph

Observational study in The clinical respiratory journal, 2026. 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
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.

  1. Observational
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

8 authors.

Xu WuDepartment of Pulmonary and Critical Care Medicine, Zhongshan Hospital, Fudan University, Shanghai, China.ORCID https://orcid.org/0000-0002-7714-5035
Hailiang QinSchool of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China.
Huai HuangDepartment of Pulmonary and Critical Care Medicine, Zhongshan Hospital, Fudan University, Shanghai, China.
Jing JiangSchool of Mechatronic Engineering and Automation, Shanghai University, Shanghai, China.
Xiaodan WuDepartment of Pulmonary and Critical Care Medicine, Zhongshan Hospital, Fudan University, Shanghai, China.
Zilong LiuDepartment of Pulmonary and Critical Care Medicine, Zhongshan Hospital, Fudan University, Shanghai, China.
Min LiSchool of Mechatronic Engineering and Automation, Shanghai University, Shanghai, China.
Shanqun LiDepartment of Pulmonary and Critical Care Medicine, Zhongshan Hospital, Fudan University, Shanghai, China.

Funding

Data Sharing and Emulation of Clinical Trials SHDC2025CCS044National Natural Science Foundation of China 82370088National Natural Science Foundation of China 82470089National Natural Science Foundation of China 82470090
6 · The paper itself

Abstract

backgroundType IV sleep monitors offer a low-burden option for obstructive sleep apnea (OSA) screening, yet their accuracy is often limited by motion artifacts and variability in signal-processing methods. The PM50-B is a wrist-worn Type IV device that combines high-sampling-rate (200 Hz) photoplethysmography (PPG)-based oximetry with wrist actigraphy to reduce motion artifacts and employs an adaptive SpO

methodsIn this prospective observational study, adults with suspected OSA underwent simultaneous overnight recording with the PM50-B and a reference test: in-laboratory polysomnography (Type I), unattended polysomnography (Type II), or Type III home sleep apnea testing (HSAT). Oximetry and actigraphy signals were processed using a standardized workflow incorporating motion-artifact attenuation, signal stabilization, and sleep-wake estimation. From the SpO

resultsA total of 475 participants were analysed (Type I, n = 37; Type II, n = 32; Type III, n = 406). ODI2.5_5 showed moderate-to-good agreement with AHI (ICC = 0.710) and good discrimination for moderate-to-severe OSA (AHI ≥ 15 events/h), with an under the curve (AUC) of 0.925 (sensitivity 81.20%, specificity 91.00%). Diagnostic performance was consistent across reference modalities (AUC range, 0.928-0.983).

conclusionThe PM50-B provides clinically acceptable accuracy for OSA screening when combined with a standardized signal-processing approach, particularly in comparison with Type III HSAT. ODI2.5_5 emerged as the strongest diagnostic metric, while CT90, CT95, and lowest SpO

Indexed as

OximetryPolysomnographySleep Apnea, ObstructiveActigraphyAdultAgedFemaleHumansMaleMiddle AgedOxygenOxygen SaturationPhotoplethysmographyProspective StudiesReproducibility of ResultsOxygenobstructive sleep apneaoxygen desaturation indextype IV sleep device

Identifiers

PMID41702830
PMCPMC12912879

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Registered trials

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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.