Evidence map›Paper›PMID 33112227›Full record

Observational studyJournal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine2021

Diagnostic performance of the STOP-Bang questionnaire as a screening tool for obstructive sleep apnea in different ethnic groups.

Rida Waseem, Matthew T V Chan, Chew Yin Wang, Edwin Seet, Stanley Tam, Su Yin Loo, Carmen K M Lam, David S Hui, Frances Chung

Registry-linked trialOpen access · bronzeAbstract readMulticenter StudyObservational Study
PubMed Full text at PMC Publisher
In one paragraph

Observational study in Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01494181 (Postoperative Vascular Events in Unrecognised Obstructive Sleep Apnea), which is not on this map. Cited by 19 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 2 pooled it
1.2field-weighted citation impact, top 21% 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.

NCT01494181 completednot on this map

Postoperative Vascular Events in Unrecognised Obstructive Sleep Apnea

TypeobservationalSponsorUniversity Health Network, TorontoRan2011 to 2018Enrolled1,200ConditionsObstructive Sleep Apnea
3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 2 syntheses or guidelines pooled it, 27 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Article
  5. STOPBANG vs STOPBWANG.Lung India : official organ of Indian Chest Society · 2026
    Article
  6. Article
  7. Pericoronary Fat Attenuation Index Mediates the Link Between TyG Index and OSA Risk in Type 2 Diabetes.Diabetes, metabolic syndrome and obesity : targets and therapy · 2026
    Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Observational
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Usefulness of self-administered questionnaires in screening for direct referral for polysomnography without sleep physician review.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2022
    Article
  19. 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

9 authors at 8 institutions in 5 countries.

Rida WaseemToronto Western Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada.
Matthew T V ChanThe Chinese University of Hong Kong, Hong Kong Special Administrative Region, China.
Chew Yin WangUniversity of Malaya, Kuala Lumpur, Malaysia.
Edwin SeetKhoo Teck Puat Hospital, National Healthcare Group, Singapore.
Stanley TamScarborough Health Network, Ontario, Canada.
Su Yin LooHospital Kuala Lumpur, Kuala Lumpur, Malaysia.
Carmen K M LamThe Chinese University of Hong Kong, Hong Kong Special Administrative Region, China.
David S HuiThe Chinese University of Hong Kong, Hong Kong Special Administrative Region, China.
Frances ChungToronto Western Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada.
Chinese University of Hong Kong · CNHospital Kuala Lumpur · MYIn-Q-Tel · USKhoo Teck Puat Hospital · SGThe Scarborough Hospital · CATuen Mun Hospital · CNUniversity Health Network · CAUniversity of Malaya · MY

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

STUDY

objectivesThe STOP-Bang questionnaire is a concise and easy screening tool for obstructive sleep apnea (OSA). Using modified body mass index (BMI), we assessed the diagnostic performance of the STOP-Bang questionnaire in predicting OSA in ethnically different groups of patients undergoing surgery.

methodsThis was a multicenter prospective cohort study involving patients with cardiovascular risk factors who were undergoing major noncardiac surgery. Patients underwent home sleep apnea testing. All patients completed the STOP-Bang questionnaire. The predictive parameters of STOP-Bang scores were calculated against the apnea-hypopnea index.

resultsFrom 4 ethnic groups 1,205 patients (666 Chinese, 161 Indian, 195 Malay, and 183 Caucasian) were included in the study. The mean BMI ranged from 25 ± 4 to 30 ± 6 kg/m² and mean age ranged from 64 ± 8 to 71 ± 10 years. For the Chinese and Indian patients, diagnostic parameters are presented using BMI threshold of 27.5 kg/m² with the area under curve to predict moderate-to-severe OSA being 0.709 (0.665-0.753) and 0.722 (0.635-0.808), respectively. For the Malay and Caucasian, diagnostic parameters are presented using BMI threshold of 35 kg/m² with the area under curve for predicting moderate-to-severe OSA being 0.645 (0.572-0.720) and 0.657 (0.578-0.736), respectively. Balancing the sensitivity and specificity, the optimal STOP-Bang thresholds for the Chinese, Indian, Malay, and Caucasian groups were determined to be 4 or greater.

conclusionsFor predicting moderate-to-severe OSA, we recommend BMI threshold of 27.5 kg/m² for Chinese and Indian patients and 35 kg/m² for Malay and Caucasian patients. The optimal STOP-Bang threshold for the Chinese, Indian, Malay and Caucasian groups is 4 or greater. CLINICAL

trial registrationRegistry: ClinicalTrials.gov; Name: Postoperative Vascular Events in Unrecognized Obstructive Sleep Apnea; URL: https://clinicaltrials.gov/ct2/show/study/NCT01494181; Identifier: NCT01494181.

Indexed as

EthnicitySleep Apnea, ObstructiveAgedAged, 80 and overHumansMass ScreeningMiddle AgedPolysomnographyProspective StudiesSurveys and Questionnairesbody mass indexobstructive sleep apneascreening toolSTOP-Bang questionnairesurgery

Identifiers

PMID33112227
PMCPMC7927338
OpenAlexW3094863161

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.