Quality of Life Research

, Volume 22, Issue 7, pp 1773–1779 | Cite as

The validation of the Turkish version of Asthma Control Test

  • Mehmet Atilla Uysal
  • Dilsad Mungan
  • Arzu Yorgancioglu
  • Fusun Yildiz
  • Metin Akgun
  • Bilun Gemicioglu
  • Haluk Turktas
  • The Turkish Asthma Control Test (TACT) Study Group
Brief Communication



Current guidelines focus more on levels of asthma control than on severity of asthma. The original version of the Asthma Control Test (ACT), a self-administered instrument to determine asthma control levels, was designed for English-speaking patients. More recently, the ACT has been translated into many languages and has been validated for many cultures, but this is the first study to evaluate the Turkish version.


We aimed to evaluate the reliability, validity, and responsiveness of the Turkish version of the ACT among outpatients with asthma.


This multicenter prospective study included 220 asthma patients in outpatient clinics in Turkey. The ACT was completed at admission (Visit 1), after 10 ± 2 days (Visit 2), and at 5 ± 1 weeks (Visit 3). At each visit, physicians assessed patients’ asthma control levels.


The Turkish version of the ACT showed an internal consistency reliability of 0.84 (Cronbach’s alpha). Test–retest reliability was 0.85 in stable patients. There was a significant correlation between the ACT and physicians’ assessments at admission (r = 0.68, p < 0.001). The AUC was 0.91, with a sensitivity of 89.06 % and a specificity of 78.26 % for a score of ≤19 for screening “uncontrolled” asthma. A minimally important difference of three points on the ACT was consistent with the GINA physician assessment scores between the baseline and the follow-up visits.


The Turkish version of the ACT is a valid and reliable tool for assessing asthma control in patients in outpatient settings. The test may facilitate the designation of asthma patients’ symptoms as either controlled or uncontrolled.


Asthma Adult Asthma Control Test Validity Reliability Responsiveness 



We are indebted to Dr. Özge Yılmaz for her invaluable assistance in the preparation of the manuscript. An unrestricted grant from GlaxoSmithKline, Turkey, supported this research.

Conflict of interest

The authors have no conflict of interest.


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Copyright information

© Springer Science+Business Media Dordrecht 2012

Authors and Affiliations

  • Mehmet Atilla Uysal
    • 1
  • Dilsad Mungan
    • 2
  • Arzu Yorgancioglu
    • 3
  • Fusun Yildiz
    • 4
  • Metin Akgun
    • 5
  • Bilun Gemicioglu
    • 6
  • Haluk Turktas
    • 7
  • The Turkish Asthma Control Test (TACT) Study Group
  1. 1.Yedikule Hospital for Chest Diseases and Thoracic Surgery, Training and Research HospitalIstanbulTurkey
  2. 2.Department of Chest Diseases, Division of AllergyAnkara University, School of MedicineAnkaraTurkey
  3. 3.Department of Chest Diseases, Faculty of MedicineCelal Bayar UniversityManisaTurkey
  4. 4.Department of Chest Diseases, Faculty of MedicineKocaeli UniversityKocaeliTurkey
  5. 5.Department of Chest Diseases, Faculty of MedicineAtatürk UniversityErzurumTurkey
  6. 6.Department of Chest Diseases, Cerrahpasa Faculty of MedicineIstanbul UniversityIstanbulTurkey
  7. 7.Department of Chest Diseases, Faculty of MedicineGazi UniversityAnkaraTurkey

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