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General or disease specific questionnaire? A comparative study in hemodialysis patients
Sim Kutlay1, Gokhan Nergizoglu, Sehim Kutlay
1Department of Nephrology, Ankara, Turkey. skutlay@hotmail.com
Renal Failure
|March 6, 2003
Summary
The Turkish version of the Nottingham Health Profile (NHP) demonstrates good construct validity and reliability for assessing health-related quality of life in hemodialysis patients. This makes the NHP a suitable tool for this patient group in Turkey.
Area of Science:
- Nephrology
- Psychometrics
- Health Services Research
Background:
- Health-related quality of life (HRQoL) is a crucial outcome measure in patient care.
- Validated questionnaires are essential for accurately assessing HRQoL.
Purpose of the Study:
- To evaluate the construct validity and reliability of the Turkish version of the Nottingham Health Profile (NHP).
- To assess the NHP's suitability for measuring HRQoL in hemodialysis patients.
Main Methods:
- The NHP was administered to 94 hemodialysis patients.
- Construct validity was assessed using the Kidney Disease Questionnaire (KDQ).
- Reliability was tested by re-administering the NHP two weeks later.
Main Results:
- The NHP demonstrated good construct validity and reliability, with high correlation coefficients (0.61-0.84) and Cronbach's alpha (0.64-0.79).
- Correlations between NHP and KDQ dimensions were generally good (0.18-0.73).
- Some NHP scales showed lower reliability (alpha < 0.7).
Conclusions:
- The Turkish NHP is a valid and reliable tool for assessing HRQoL in end-stage renal disease (ESRD) patients in Turkey.
- The NHP is easy to administer and understand.
- Disease-specific questionnaires may show stronger correlations with clinical parameters.