Comparative evaluation of Health-related Quality of Life Questionnaires in patients with heart failure undergoing cardiac rehabilitation- a psychometric study

Publication date: Available online 8 June 2016
Source:Archives of Physical Medicine and Rehabilitation
Author(s): Fatemeh Rajati, Awat Feizi, Kamran Tavakol, Firoozeh Mostafavi, Masoumeh Sadeghi, Gholamreza Sharifirad
ObjectiveTo compare the psychometric properties of two heart failure (HF) specific quality of life questionnaires and the general health survey short-form-36 (SF-36) in heart failure patients.DesignA methodological study based on three-month follow up data for evaluating psychometric properties of health related quality of life questionnaires.SettingCardiac Rehabilitation Centre, cardiovascular research institute (Isfahan, Iran)ParticipantsEligible heart failure patientsInterventionExercise training in cardiac rehabilitationMain Outcome Measures"The SF-36", the "MacNew Heart Disease (MacNew), and the Minnesota Living with Heart Failure (MLHF) questionnaires; New York Heart Association (NYHA) functional classification.ResultsItems from MLHF and MacNew had acceptable correlations (r>0.30, p<0.05). Internal consistency and test-retest reliability were adequate and ≥ 0.7 for MLHF subscales. Correlations for MLHF and MacNew with SF-36 similar items ranged from 0.28 to 0.50 and from 0.26 to 0.60, respectively. Similar scales from MacNew and MLHF showed strong correlations at baseline as well as follow-up, supporting the convergent validity. Improvement in HRQL was significant for all MLHF subscales (p<0.001) as well as MacNew emotional (p<0.05) and social (p<0.001) subscales. The MLHF demonstrated the most responsiveness to changes and discriminated disease severity the best. The follow-up scores for all MLHF and two MacNew subscales were significantly greater in patients who improved than those who showed no change or deteriorated.ConclusionThe MLHF questionnaire was more responsive to changes of HRQL than the MacNew over time in patients with heart failure. The MacNew questionnaire was more responsive to changes than the SF-36.



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