Evidence map›Paper›PMID 33841965›Full record

ArticleJournal of thoracic disease2021

Time-dependence and comparison of regional and overall anthropometric features between Asian and Caucasian populations with obstructive sleep apnea: a cumulative meta-analysis.

Hua Qin, Chongxiang Chen, Nicolas Steenbergen, Yang Cheng, Thomas Penzel

Open access · diamondAbstract read
In one paragraph

Article in Journal of thoracic disease, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.0field-weighted citation impact, top 27% 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

7 citing papers in PubMed, 10 citations in OpenAlex.

  1. STOPBANG vs STOPBWANG.Lung India : official organ of Indian Chest Society · 2026
    Article
  2. Chinese Guidelines for the Diagnosis and Surgical Treatment of Adult Obstructive Sleep Apnea (2024).World journal of otorhinolaryngology - head and neck surgery · 2026
    Article
  3. Review
  4. Review
  5. Article
  6. Unique clinical phenotypes of patients with obstructive sleep apnea in a Japanese population: a cluster analysis.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2022
    Observational
  7. 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

5 authors at 4 institutions in 4 countries.

Hua QinInterdisciplinary Center of Sleep Medicine, Charité University Hospital, Berlin, Germany.
Chongxiang ChenGuangzhou Institute of Respiratory Diseases, the First Affiliated Hospital of Guangzhou Medical University, State Key Laboratory of Respiratory Disease, Guangzhou, China.
Nicolas SteenbergenImperial College London School of Medicine, London, UK.
Yang ChengDepartment of Respiratory and Critical Care Medicine, Beijing Jishuitan Hospital, the Fourth Medical College of Peking University, Beijing, China.
Thomas PenzelInterdisciplinary Center of Sleep Medicine, Charité University Hospital, Berlin, Germany.
Charité - Universitätsmedizin Berlin · DEFirst Affiliated Hospital of Guangzhou Medical University · CNImperial College London · GBPeking University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAnthropometric measurements are simple and reachable tools for self-evaluating and screening patients with a high risk of obstructive sleep apnea (OSA). However, the accumulated relationship of obesity on the anthropometric characteristics of OSA is not well understood. The aim of the study was to show the time-dependent trend of OSA patients and compare overall and regional anthropometric between two ethnicities.

methodsA cumulative meta-analysis was performed to assess obesity metrics in patients with and without OSA between Asians and Caucasians. We searched PubMed, Web of Science, Embase, and Scopus up to Jun 2020. Included studies used body mass index (BMI), neck circumference (NC), waist circumference (WC) and waist-to-hip ratio (WHR) as measures of anthropometric features in the adult OSA population and controls, utilized in-lab polysomnography or home sleep testing with apnea-hypopnea index (AHI) or respiratory disturbance index (RDI) classification, reported ethnicity/race, and were published in English. Any studies lacking one of these criteria or sufficient data were excluded.

resultsForty studies with a total of 19,142 subjects were investigated. Comparison of changes between patients with and without OSA showed that OSA patients had a higher BMI [mean difference (MD) 3.12, 95% confidence interval (CI): 2.51-3.73], NC (MD 3.10, 95% CI: 2.70-3.51), WC (MD 9.84, 95% CI: 8.42-11.26) and waist-hip ratio (MD 0.04, 95% CI: 0.03-0.05) than the control subjects. The accumulated time-dependent increase in population with OSA was significantly apparent with all anthropometric features. BMI increased from 2000 (MD 0.50) to 2012 (MD 3.08-3.48) and remained stable afterwards (MD 2.70-3.17), NC increased from 2000 (MD 0.40) to 2013 (MD 3.09) and remained stable afterwards too (MD 3.06-3.21). WC increased from 2000 (MD 2.00) to 2012 (MD 9.37-10.03) and also remained stable afterwards (MD 8.99-9.84). WHR was stable from 2000 to 2004 with an MD of 0.01 and then stable from 2007 onwards with an increased MD of 0.03-0.04. Compared with Caucasian patients, Asian patients had lower obesity relevant variates.

conclusionsBMI, NC, WC and WHR are associated with OSA in both ethnic groups. Anthropometry for overall and regional obesity could facilitate differentiation of patients with OSA from individuals without OSA by ethnicity.

Indexed as

anthropometric parameterscumulative meta-analysisethnicityobesityObstructive sleep apnea (OSA)

Identifiers

PMID33841965
PMCPMC8024799
OpenAlexW3140250917

What OpenQuestion holds

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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.