TY - JOUR
T1 - Measuring HRQoL following heart valve surgery
T2 - the HeartQoL questionnaire is a valid and reliable core heart disease instrument
AU - Grønset, Charlotte N
AU - Thygesen, Lau C
AU - Berg, Selina Kikkenborg
AU - Zangger, Graziella
AU - Kristensen, Marie S
AU - Sibilitz, Kirstine L
AU - Pedersen, Susanne S
AU - Oldridge, Neil B
AU - Zwisler, Ann-Dorthe
PY - 2019/5
Y1 - 2019/5
N2 - PURPOSE: Patient-reported health-related quality of life is a complementary healthcare outcome and important when assessing treatment efficacy. Using COSMIN methodological recommendations, this study evaluates the validity and reliability of a core heart disease-specific health-related quality of life questionnaire, the HeartQoL questionnaire (Danish version) in a sample of patients following heart valve surgery.DESIGN: This project involved a cross-sectional validity study and a test-retest reliability study.METHODS: Eligible patients completed the HeartQoL, the SF-36 health survey questionnaire, and the Hospital Anxiety and Depression Scale following heart valve surgery. Construct validity was tested using a priori hypotheses. Internal consistency reliability was assessed with Cronbach's alpha. An independent sample of patients participated in the test-retest study and reproducibility was determined with relative [intra-class correlation coefficient (ICC)] and absolute reliability [standard error of measurement (SEM) and smallest detectable change (SDC)].RESULTS: Internal consistency was high with Cronbach's alpha ≥ 0.87. ICC was 0.86-0.92. SEM ranged from 0.17 to 0.26 points and SDC ranged from 0.5 to 0.7 points. Construct validity was confirmed with 87% of all a priori hypotheses for predicted variables.CONCLUSIONS: The HeartQoL questionnaire demonstrates acceptable construct validity, internal consistency, and test-retest reproducibility in patients following heart valve surgery. Future studies should focus on assessing the responsiveness of the HeartQoL questionnaire over time and following heart valve surgery.
AB - PURPOSE: Patient-reported health-related quality of life is a complementary healthcare outcome and important when assessing treatment efficacy. Using COSMIN methodological recommendations, this study evaluates the validity and reliability of a core heart disease-specific health-related quality of life questionnaire, the HeartQoL questionnaire (Danish version) in a sample of patients following heart valve surgery.DESIGN: This project involved a cross-sectional validity study and a test-retest reliability study.METHODS: Eligible patients completed the HeartQoL, the SF-36 health survey questionnaire, and the Hospital Anxiety and Depression Scale following heart valve surgery. Construct validity was tested using a priori hypotheses. Internal consistency reliability was assessed with Cronbach's alpha. An independent sample of patients participated in the test-retest study and reproducibility was determined with relative [intra-class correlation coefficient (ICC)] and absolute reliability [standard error of measurement (SEM) and smallest detectable change (SDC)].RESULTS: Internal consistency was high with Cronbach's alpha ≥ 0.87. ICC was 0.86-0.92. SEM ranged from 0.17 to 0.26 points and SDC ranged from 0.5 to 0.7 points. Construct validity was confirmed with 87% of all a priori hypotheses for predicted variables.CONCLUSIONS: The HeartQoL questionnaire demonstrates acceptable construct validity, internal consistency, and test-retest reproducibility in patients following heart valve surgery. Future studies should focus on assessing the responsiveness of the HeartQoL questionnaire over time and following heart valve surgery.
KW - Health-related quality of life questionnaires
KW - Heart valve surgery
KW - HeartQoL
KW - Measurement properties
U2 - 10.1007/s11136-018-02098-1
DO - 10.1007/s11136-018-02098-1
M3 - Journal article
C2 - 30610503
SN - 0962-9343
VL - 28
SP - 1245
EP - 1253
JO - Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation
JF - Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation
IS - 5
ER -