Evidence map›Paper›PMID 34168022›Full record

ArticleBMJ open2021

BASAN index (Body mass index, Age, Sex, Arterial hypertension and Neck circumference) predicts severe apnoea in adults living at high altitude.

Henry Oliveros, Rafael Lobelo, Luis Fernando Giraldo-Cadavid, Alirio Bastidas, Constanza Ballesteros, Rafael Bernal, Lilian Patiño, Karen Herrera, David Gozal

Open access · goldAbstract read
In one paragraph

Article in BMJ open, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.7field-weighted citation impact, top 31% 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

2 citing papers in PubMed, 6 citations in OpenAlex.

  1. Article
  2. 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

9 authors at 2 institutions in 2 countries.

Henry OliverosSchool of Medicine, Epidemiology and Biostatistics Department, Universidad de La Sabana, Chia, Colombia henry.oliveros@unisabana.edu.co.ORCID 0000-0002-7632-906X
Rafael LobeloPulmonary and Sleep Medicine - Grupo de Investigación en Sueño, CAYRE, Bogotá, D.C, Colombia.
Luis Fernando Giraldo-CadavidSchool of Medicine, Epidemiology and Biostatistics Department, Universidad de La Sabana, Chia, Colombia.
Alirio BastidasSchool of Medicine, Epidemiology and Biostatistics Department, Universidad de La Sabana, Chia, Colombia.
Constanza BallesterosPulmonary and Sleep Medicine - Grupo de Investigación en Sueño, CAYRE, Bogotá, D.C, Colombia.
Rafael BernalPulmonary and Sleep Medicine - Grupo de Investigación en Sueño, CAYRE, Bogotá, D.C, Colombia.
Lilian PatiñoPulmonary and Sleep Medicine - Grupo de Investigación en Sueño, CAYRE, Bogotá, D.C, Colombia.
Karen HerreraPulmonary and Sleep Medicine - Grupo de Investigación en Sueño, CAYRE, Bogotá, D.C, Colombia.
David GozalDepartment of Child Health and the Children's Hospital Research Institute, University of Missouri, Columbia, Missouri, USA.
Universidad de La Sabana · COUniversity of Missouri · US

Funding

HL - Exosomes, Blood, Brain Barrier, and Cognitive Function in Pediatric OSAR01HL130984 · NHLBI · UNIVERSITY OF MISSOURI-COLUMBIA · PI GOZAL, LEILA KHEIRANDISH · 2016 to 2020
$3.5M
Plasma Exosomes and Vascular Dysfunction in Adults with Sleep ApneaR56HL140548 · NHLBI · UNIVERSITY OF MISSOURI-COLUMBIA · PI GOZAL, DAVID · 2018 to 2018
$794k
NHLBI NIH HHS R01 HL130984NHLBI NIH HHS R56 HL140548
6 · The paper itself

Abstract

objectivesObstructive sleep apnoea (OSA)/hypopnoea syndrome is associated with serious and major multiorgan morbidities, particularly in its most severe forms. However, no severe OSA screening instruments are available for high altitude residents that enable adequate identification and clinical prioritisation of such patients. We aimed at developing a severe OSA prediction tool based on the clinical characteristics and anthropometric measurements of a clinical referral cohort living at 2640 m.a.s.l.

designCohort-nested cross-sectional study.

settingSleep laboratory for standard polysomnography (PSG) in Colombia.

participantsA predictive model was generated from 8718 participants referred to the PSG laboratory. Results were subsequently validated in a second cohort of 1898 participants. PRIMARY OUTCOME: To identify clinical and anthropometric variables associated with severe OSA (>30 events/hour) and to include them in a binary logistic regression model.

resultsThe significant variables that were retained with the presence of severe OSA included Body mass index (BMI), Age, Sex, Arterial hypertension and Neck circumference (BASAN). The area under the receiver operating characteristic curvefor the BASAN index was 0.69 (95% CI: 0.68 to 0.70) in the derivation cohort and 0.67 (95% CI: 0.65 to 0.69) in the validation cohort, whereby a BASAN index ≥2 had a sensitivity of 95% and a specificity of 17% to detect severe OSA.

conclusionAn objectively based approach to screen for the presence of severe OSA, the BASAN index, exhibits favourable sensitivity characteristics that should enable its operational use as a screening tool in a Hispanic population with a clinical suspicion of OSA and living at high altitude.

Indexed as

AltitudeHypertensionAdultBody Mass IndexColombiaCross-Sectional StudiesHumansaltitude medicinehypertensionsleep medicine

Identifiers

PMID34168022
PMCPMC8231047
OpenAlexW3175887776

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.