"Turkish Validation and Reliability Study of the Brompton Breathing Pattern Assessment Tool in Asthma Patients"

NCT07450885 | Completed

• 1 other identifier: 25/428
• Study Type: observational
• Target: 101
• Locations: 1 country
• Sites: 1

Brief Summary

The purpose of this study is to evaluate the validity and reliability of the Turkish version of the Brompton Breathing Pattern Assessment Tool (BPAT) in individuals with asthma. This study aims to determine whether the BPAT is a valid and reliable tool for assessing breathing patterns in Turkish-speaking asthma patients. The research question being addressed is: "Is the Turkish version of the BPAT a valid and reliable tool for assessing breathing patterns in individuals with asthma?"

Conditions

Asthma; Breathing Pattern Disorder

Keywords

Brompton Breathing Pattern Assessment Tool; Turkish Version; Validity Study; Reliability Study

Outcome Measures

Primary Outcomes (1)

• Construct Validity of the Turkish Version of the Brompton Breathing Pattern Assessment Tool (BPAT)

  The study aims to evaluate the construct validity of the Turkish version of the BPAT in assessing breathing patterns among Turkish-speaking asthma patients. Validity will be determined by calculating correlation coefficients (e.g., Spearman's or Pearson's r) between the total BPAT scores, objective physiological measures (spirometry results such as FEV1 and FVC), and the scores of established reference clinical tools (Nijmegen Questionnaire, Dyspnea-12, Asthma Control Test (ACT), and Asthma Quality of Life Questionnaire (Mini-AQLQ).

  Baseline

Secondary Outcomes (3)

• Test-Retest Reliability of the Turkish Version of BPAT

  7 to 14 days

• Inter-Rater Reliability of the Turkish Version of BPAT

  Baseline

• Comparison of BPAT Results with Other Asthma Assessment Tools

  Baseline

Study Arms (1)

Asthma Patients

Individuals aged 18-75, diagnosed with severe persistent asthma according to GINA criteria, who are native Turkish speakers.

Other: Brompton Breathing Pattern Assessment Tool (BPAT) - Turkish Version; Other: Validation Battery (Nijmegen Questionnaire, Dyspnea-12, Asthma Control Test (ACT), Asthma Quality of Life Questionnaire (Mini AQLQ), Spirometry)

Interventions

Brompton Breathing Pattern Assessment Tool (BPAT) - Turkish Version OTHER

A tool used to assess breathing patterns in asthma patients through clinical observation.

Asthma Patients

Validation Battery (Nijmegen Questionnaire, Dyspnea-12, Asthma Control Test (ACT), Asthma Quality of Life Questionnaire (Mini AQLQ), Spirometry) OTHER

A set of validated questionnaires and objective tests used to compare with BPAT results for construct validity

Asthma Patients

Eligibility Criteria

• Age: 18 Years - 75 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

The participants for this study will be recruited from Health Sciences University, İstanbul Süreyyapaşa Chest Diseases and Chest Surgery Education and Research Hospital in Istanbul, Turkey. Participants will be selected based on the eligibility criteria outlined, including those diagnosed with severe persistent asthma as per the Global Initiative for Asthma (GINA) guidelines. Participants will be recruited from local clinics specializing in respiratory diseases and asthma management.

You may qualify if:

• Aged between 18 and 75 years
• Diagnosed with severe persistent asthma according to the Global Initiative for Asthma (GINA) criteria
• Turkish ethnicity
• Ability to read and write in Turkish
• Willingness to participate in the study

You may not qualify if:

• Having had a respiratory infection in the last 1 month
• Use of oral corticosteroids in the last 4 weeks
• Presence of malignancy, vasculitis, or pregnancy
• Body Mass Index (BMI) \> 35 kg/m2
• Diagnosis of COPD or other primary respiratory diseases (excluding asthma)
• Any musculoskeletal, neurological, or cardiovascular condition that could interfere with breathing pattern assessment or impede potential respiratory physiotherapy applications

Sponsors & Collaborators

• Istanbul Saglik Bilimleri University: lead
• Istanbul Sureyyapasa Chest Diseases and Chest Surgery Training and Research Hospital: collaborator

Study Sites (1)

Süreyyapaşa Chest Diseases And Thoracic Surgery Training And Research Hospital

Istanbul, Istanbul, 34844, Turkey (Türkiye)

Location

Related Publications (1)

• Todd S, Walsted ES, Grillo L, Livingston R, Menzies-Gow A, Hull JH. Novel assessment tool to detect breathing pattern disorder in patients with refractory asthma. Respirology. 2018 Mar;23(3):284-290. doi: 10.1111/resp.13173. Epub 2017 Sep 14.

  PMID: 28905471 BACKGROUND

MeSH Terms

Conditions

Asthma

Condition Hierarchy (Ancestors)

Bronchial Diseases; Respiratory Tract Diseases; Lung Diseases, Obstructive; Lung Diseases; Respiratory Hypersensitivity; Hypersensitivity, Immediate; Hypersensitivity; Immune System Diseases

Study Officials

• Zuhal Kunduracılar, Prof.

  Istanbul Gelisim University

  PRINCIPAL INVESTIGATOR

• Fatma M. Tepetam, Prof.

  Saglik Bilimleri Universitesi

  STUDY CHAIR

• Şeyma Ozden, Dr.

  Saglik Bilimleri Universitesi

  STUDY CHAIR

• Dilek Unsal, PT PhD(c)

  Saglik Bilimleri Universitesi

  PRINCIPAL INVESTIGATOR

• Nisanur Tutus, PT Phd (c)

  Saglik Bilimleri Universitesi

  STUDY CHAIR

Study Design

• Study Type: observational
• Observational Model: COHORT
• Time Perspective: PROSPECTIVE
• Target Duration: 1 Week
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Investigator

Study Record Dates

• First Submitted: September 28, 2025
• First Posted: March 5, 2026
• Study Start: July 14, 2025
• Primary Completion: April 30, 2026
• Study Completion: April 30, 2026
• Last Updated: May 7, 2026

Record last verified: 2026-05

Data Sharing

• IPD Sharing: Will not share

Locations

TU (1)