With Chronic Heart Failure Qol Scale (mlhfq), The Chinese Translation Of The Measurement Of Psychological Evaluations

Objectives To develop the QOL(quality of life) scale about heart failure patients-the Minnesota Living with Heart Failure Questionnaire (MLHFQ) which is used widely in the abroad into Chinese version and evaluate its reliability and validity from the psychometric aspect. Methods According to the principle of west scale turning into Chinese to establish the MLHFQ of Chinese version. Regarding 44 patients with heart failure of New York Heart Association (NYHA) class II to class IVconforming to the NYHA classification as investigative object, on the basis of obtaining patients' Informed Consent Form, using of test-retest method to perform this investigation. As the psychometric assessment, to evaluate its reliability by test-retest reliability and cronbach' s alpha coefficient; to appraisal its validity by criterion validity, construct validity and discriminatory validity. Results The correlation coefficient of reproducibility between front and back investigation of the MLHFQ measure was that: in the total score r=0.468(P=0.009), in the physical dimensions r=0.458(P=0.011), in the emotional dimensions r=0.446(P=0.014), the test-retest reliability was passable; the cronbach' s alpha coefficient was the range of 0.776 to 0.811 in the total score, Physical and emotional dimensions, the internal consistency was ample. Regarding the SF-36 as criterion, the correlation coefficient between the MLHFQ and SF-36 was that: in the total score r=0.610(P<0.0001), in the physical dimensions r=0.660(P<0.0001), in the emotional dimensions r=0.414(P=0.007), the criterion validity was well. Using of the factor-analysis method, the result of respectively evaluating the construct validity in the physical and the emotional dimensions was that: physical dimensions was separated into three factors which were defined daily activity factor physical function factor and physical activity factor, emotional dimensions was separated into two factors which were psychology distress factor and emotion reaction factor, cording to the NYHA classification and regarding the T test' s analysis as a result, there was a strong difference (P<0.05) in the total score and physical dimensions of the MLHFQ, then the discriminatory validity was confirmed to be better. Conclusion There are well reliability and validity in the MLHFQ of Chinese version.