Published online Dec 31, 2009.
https://doi.org/10.4040/jkan.2009.39.6.781
Computerized Measurement for Asthma-Specific Quality of Life: Comparison with a Conventional Paper-and-Pencil Questionnaire
Abstract
Purpose
The purpose of this study was to evaluate a computerized touch-screen version of the asthma-specific quality-of-life (cA-QOL) questionnaire against the conventional paper-and-pencil version (pA-QOL) for equivalence, time for completion, user preference, and ease of use.
Methods
A total of 261 patients were recruited. A randomized cross-over design was used. Patients in group A completed the cA-QOL first while waiting to see a physician, and completed the pA-QOL version after seeing the physician. Patients allocated in group B completed these questionnaires in the reverse order. The patients were asked questions about user preference and ease of use of the cA-QOL. The time taken to complete both versions of the questionnaire was measured.
Results
Weighted kappa coefficients of all items showed almost perfect agreement. The time required to complete the pA-QOL is faster than the time for cA-QOL. The patients who preferred the cA-QOL were 37.5%, while those who preferred the pA-QOL were 29.9%. Most patients reported that the cA-QOL was "easy" or "very easy" to complete.
Conclusion
The cA-QOL is the computerized equivalent of the pA-QOL. The findings herein demonstrate that the cA-QOL can be helpful to nurses in busy practices for assessing, collecting, and evaluating their patients' health related quality of life.
Figure 1
cA-QOL=computer mode of A-QOL; pA-QOL=paper mode of A-QOL.
Randomized cross-over design.
Figure 2
cA-QOL=computer mode of A-QOL; pA-QOL=paper mode of A-QOL.
Mean of log time taken to complete the cA-QOL and pA-QOL.
Table 1
Patient Characteristics (N=261)
Table 2
Individual Score Agreement between the cA-QOL and pA-QOL: Κw
Table 3
Two-Period Cross-Over Study of the Mean of Log Time Taken to Complete the cA-QOL and the pA-QOL
This work was supported by the Korea Research Foundation Grant funded by the Korean Government (MOEHRD) (KRF-2007-521-E00158).
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