Evidence map›Paper›PMID 28757370›Full record

ArticleThe journal of allergy and clinical immunology. In practice

Distinct Asthma Phenotypes Among Older Adults with Asthma.

Alan P Baptist, Wei Hao, Keerthi R Karamched, Bani Kaur, Laurie Carpenter, Peter X K Song

Abstract read
In one paragraph

Article in The journal of allergy and clinical immunology. In practice. 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
–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

14 citing papers in PubMed.

  1. The impact of patient autonomy on older adults with asthma.Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology · 2018
    Trial
  2. PP4 deficiency drives airway epithelial senescence via the PERK-eIF2α-ATF4-p21 axis in severe asthma.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2026
    Article
  3. Article
  4. Article
  5. Identification of biologic-responsive phenotypes in elderly people with eosinophilic asthma.The journal of allergy and clinical immunology. Global · 2024
    Article
  6. Review
  7. Phenotyping older adults with asthma by means of cluster analysis.Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology · 2022
    Article
  8. Asthma clustering methods: a literature-informed application to the children's health study data.The Journal of asthma : official journal of the Association for the Care of Asthma · 2022
    Review
  9. Article
  10. Review
  11. Article
  12. Article
  13. Hormones, sex, and asthma.Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology · 2018
    Review
  14. Asthma Over the Age of 65: All's Well That Ends Well.The journal of allergy and clinical immunology. In practice
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors.

Alan P BaptistDivision of Allergy and Clinical Immunology, University of Michigan, Ann Arbor, Mich; Department of Health Behavior and Health Education, School of Public Health, University of Michigan, Ann Arbor, Mich. Electronic address: abaptist@med.umich.edu.
Wei HaoDepartment of Health Behavior and Health Education, School of Public Health, University of Michigan, Ann Arbor, Mich.
Keerthi R KaramchedDivision of Allergy and Clinical Immunology, University of Michigan, Ann Arbor, Mich.
Bani KaurDepartment of Internal Medicine, Wayne State University, Detroit, Mich.
Laurie CarpenterDepartment of Health Behavior and Health Education, School of Public Health, University of Michigan, Ann Arbor, Mich.
Peter X K SongDepartment of Internal Medicine, Wayne State University, Detroit, Mich.

Funding

Strategic Vision & Impact on Environmental HealthP30ES017885 · NIEHS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI John D. Meeker · 2011 to 2026
$21.5M
A Self-Regulation Intervention for Older Adults with AsthmaR01AG043401 · NIA · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI BAPTIST, ALAN P. · 2013 to 2016
$1.3M
NIA NIH HHS R01 AG043401NIEHS NIH HHS P30 ES017885
6 · The paper itself

Abstract

backgroundOlder adults have high rates of asthma morbidity and mortality. Asthma is now recognized as a heterogeneous disease, yet the distinct phenotypes among older adults are unknown.

objectiveThe objective of this study was to identify asthma phenotypes in a diverse population of elderly patients with asthma.

methodsUsing cluster analysis, 180 older adults with persistent asthma were analyzed. Subjects completed detailed questionnaires, skin prick testing, and spirometry with reversibility. Twenty-four core variables were analyzed.

resultsFour groups were identified. Subjects in cluster 1 (n = 69) typically had asthma diagnosed after the age of 40 and the shortest duration of asthma. Cluster 2 (n = 40) had the mildest asthma defined by spirometry, Asthma Control test (ACT), and Asthma Quality of Life Questionnaire (AQLQ). They also had the lowest body mass index (BMI), lowest depression score, and least number of comorbidities. Cluster 3 (n = 46) had the longest duration of asthma (56 years) and the highest atopic skin test sensitization (74%). Cluster 4 (n = 25) had the most severe asthma, with extremely low FEV

conclusionsIn older adults with asthma, distinct phenotypes vary on key features that are more pronounced among the elderly, including comorbidities, fixed airway obstruction, and duration of asthma ≥40 years. Further work is required to determine the clinical and therapeutic implications for different asthma phenotypes in older adults.

Indexed as

Age FactorsAdultAgedAirway ObstructionAsthmaCluster AnalysisComorbidityFemaleHumansMaleMiddle AgedPhenotypeQuality of LifeSkin TestsSpirometrySurveys and QuestionnairesAsthmaAsthma classificationAtopic sensitizationCluster analysisFixed airway obstructionOlder adultsPhenotypes

Identifiers

PMID28757370
PMCPMC5897052

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.