Evidence map›Paper›PMID 22453663›Full record

ArticlePrimary care respiratory journal : journal of the General Practice Airways Group2012

Relationship of obesity with respiratory symptoms and decreased functional capacity in adults without established COPD.

Moshe Zutler, Jonathan P Singer, Theodore A Omachi, Mark Eisner, Carlos Iribarren, Patricia Katz, Paul D Blanc

Open access · bronzeAbstract read
In one paragraph

Article in Primary care respiratory journal : journal of the General Practice Airways Group, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
4.2field-weighted citation impact, top 6% 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

14 citing papers in PubMed, 37 citations in OpenAlex.

  1. Bronchodilators for hyperinflation in COPD associated with biomass smoke: clinical trial.International journal of chronic obstructive pulmonary disease · 2019
    Trial
  2. Article
  3. Review
  4. Type of Disaster Exposure Affects Functional Limitations of Older People 6 Years Later.The journals of gerontology. Series A, Biological sciences and medical sciences · 2020
    Article
  5. Article
  6. Article
  7. Article
  8. Gender and asthma-chronic obstructive pulmonary disease overlap syndrome.The Journal of asthma : official journal of the Association for the Care of Asthma · 2016
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Obesity, airflow limitation, and respiratory symptoms: does it take three to tango?Primary care respiratory journal : journal of the General Practice Airways Group · 2012
    Article
  14. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 1 country.

Moshe ZutlerDepartment of Pulmonary, Critical Care, Allergy and Sleep Medicine, University of California, San Francisco, California 94143, USA. moshe.zutler@ucsf.edu
Jonathan P Singer
Theodore A Omachi
Mark Eisner
Carlos Iribarren
Patricia Katz
Paul D Blanc
University of California, San Francisco · USKaiser Permanente · USUniversity of California System · US

Funding

MUTIDISCIPLINARY TRAINING PROGRAM IN LUNG DISEASEST32HL007185 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI David J Erle, LAURENCE HUANG · 1985 to 2026
$24.6M
The Effects of Lung Transplant on Disability and Health-Related Quality of LifeK23HL111115 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI SINGER, JONATHAN PAUL · 2012 to 2016
$832k
The Overlap Syndrome of COPD and OSA: Determinants of Health Status and OutcomesK23HL102159 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI OMACHI, THEODORE A · 2010 to 2012
$399k
NHLBI NIH HHS 5T32HL7185-34NHLBI NIH HHS K23 HL102159NHLBI NIH HHS K23 HL111115NHLBI NIH HHS T32 HL007185
6 · The paper itself

Abstract

backgroundObesity contributes to respiratory symptoms and exercise limitation, but the relationships between obesity, airflow obstruction (AO), respiratory symptoms and functional limitation are complex.

aimsTo determine the relationship of obesity with airflow obstruction (AO) and respiratory symptoms in adults without a previous diagnosis of chronic obstructive pulmonary disease (COPD).

methodsWe analysed data for potential referents recruited to be healthy controls for an ongoing study of COPD. The potential referents had no prior diagnosis of COPD or healthcare utilisation attributed to COPD in the 12 months prior to recruitment. Subjects completed a structured interview and a clinical assessment including body mass index, spirometry, six-minute walk test (SMWT), and the Short Performance Physical Battery (SPPB). Multiple regression analyses were used to test the associations of obesity (body mass index >30 kg/m2) and smoking with AO (forced expiratory volume in 1s/forced vital capacity ratio <0.7). We also tested the association of obesity with respiratory symptoms and impaired functional capacity (SPPB, SMWT), adjusting for AO.

resultsOf 371 subjects (aged 40-65 years), 69 (19%) had AO. In multivariate analysis, smoking was positively associated with AO (per 10 pack-years, OR 1.24; 95% CI 1.04 to 1.49) while obesity was negatively associated with AO (OR 0.54; 95% CI 0.30 to 0.98). Obesity was associated with increased odds of reporting dyspnoea on exertion (OR 3.6; 95% CI 2.0 to 6.4), productive cough (OR 2.5; 95% CI 1.1 to 6.0), and with decrements in SMWT distance (67 ± 9 m; 95% CI 50 to 84 m) and SPPB score (OR 1.9; 95% CI 1.1 to 3.5). None of these outcomes was associated with AO.

conclusionsAlthough AO and obesity are both common among adults without an established COPD diagnosis, obesity (but not AO) is linked to a higher risk of reporting dyspnoea on exertion, productive cough, and poorer functional capacity.

Indexed as

Activities of Daily LivingBody Mass IndexFemaleHumansInterviews as TopicLung Diseases, ObstructiveMaleMiddle AgedMultivariate AnalysisObesityOdds RatioPhysical FitnessProspective StudiesRegression AnalysisSmokingSpirometry

Identifiers

PMID22453663
PMCPMC3523806
OpenAlexW31417001

What OpenQuestion holds

Textmetadata
LicenceTDM
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.