Validation of a Turkish version of the SGRQ for patients with IPF

Turkish Validity and Reliability of the Saint George Respiratory Questionnaire Idiopathic Pulmonary Fibrosis Version (SGRQ-I)

Observational Saglik Bilimleri Universitesi · NCT05147597

This study is testing a Turkish version of a questionnaire to see if it accurately measures the health and quality of life for people with idiopathic pulmonary fibrosis (IPF).

Quick facts

Study typeObservational
Enrollment180 (estimated)
Ages18 Years and up
SexAll
SponsorSaglik Bilimleri Universitesi Academic / other
Locations1 site (Istanbul, Üsküdar)
Trial IDNCT05147597 on ClinicalTrials.gov

What this trial studies

This observational study aims to translate and validate the Saint George Respiratory Questionnaire (SGRQ) specifically for patients with idiopathic pulmonary fibrosis (IPF) into Turkish. The study will involve a cross-sectional design where participants will complete the SGRQ and its Turkish version, SGRQ-I, along with a demographic evaluation form. The reliability and validity of the questionnaire will be assessed through various statistical methods, including test-retest reliability and confirmatory factor analysis. The study is expected to be completed within two years once the required sample size is achieved.

Who should consider this trial

Good fit: Ideal candidates for this study are Turkish-speaking adults over 18 years old diagnosed with idiopathic pulmonary fibrosis.

Not a fit: Patients experiencing exacerbations of IPF or those with cognitive impairments may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide a validated tool for assessing the quality of life in Turkish-speaking patients with IPF.

How similar studies have performed: Other studies have successfully validated similar quality of life questionnaires for different languages and conditions, indicating a promising approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Be over 18 years old
* Having a Diagnosis of Idiopathic Pulmonary Fibrosis
* To be literate in Turkish

Exclusion Criteria:

* Exacerbation or exacerbation in the last 6 weeks
* Presence of comorbidities affecting ambulation
* Cognitive impairment

Where this trial is running

Istanbul, Üsküdar

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions IPFSGRQSGRQ-IQuality of life
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.