Mustaffa Kamal, Shahiniz Tasneem
(2015)
Assessment of validity and reliability of Malay version of asthma control test questionnaire.
Masters thesis, Universiti Sains Malaysia.
Abstract
OBJECTIVE
To validate the Malay version of ACT questionnaire for asthma children aged
12 to 18 years old .
METHODS
Pilot test was administered as linguistic validation before proceeding with
data collection. The participants completed the ACT questionnaire
concurrently while performing the spirometry. Respiratory paediatricians who
were blinded to ACT rated their asthma control based on Global Initiative for
Asthma (GINA) guideline in order to evaluate validity and reliable of Malay
version of ACT.
RESULTS
A total of 60 patients were recruited with median age of 14 years old. The
Malay version of ACT has good internal consistency; Cronbach’s alpha 0.91.
A significant difference was noted between the different groups of asthma
control control as grouped by the GINA - defined classification [F(2,25)
=88.16. There was good agreement of ACT with the specialist classification,
kappa = 0.84. The study has good sensitivity and specificity for cut off 19
with 92% and 96% respectively. It has fair correlation with FEV1 and PEF (r =
0.41-0.42).
CONCLUSION
The Malay version of ACT is a valid and reliable test for asthma control
assessment . Further research for validation needed involving multi centre,
bigger sample size and repeated measures to detect the changes over time
in order to capture the true picture of asthma control, are required to validate
the result of this study.
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