shiva musavi

The Kansas City Cardiomyopathy Questionnaire (KCCQ) has been developed to measure the health status of Congestive heart failure (CHF) patients. This study aimed to translate KCCQ into a Persian version and assess its validity and reliability. We used a forward-backward procedure to translate the questionnaire. In a cross-sectional study, 150 CHF patients and 50 healthy subjects over 30 years old were selected to assess the reliability and construct validity of the instrument. The face and content validity were used for the questionnaire's validity. The validity was examined on a population of patients with CHF using the Persian version of the Minnesota Living Heart Failure Questionnaire (MLHF) health survey. Calculation of the Intraclass correlation coefficient (ICC) and Cronbach's alpha was done to evaluate the questionnaire's reliability. Test-retest reliability was examined by re-administering the KCCQ after 2 weeks. Test-retest results demonstrated that the Persian version has excellent reliability (ICC for all domains was higher than 0.93, P≤0.000). Internal consistency was found by Cronbach's alpha to be 0.86 for the clinical summary and 0.87 for the overall summary, respectively. Also, the correlation between the components of KCCQ and MLHQ showed satisfactory construct validity. Good Pearson's Correlation Coefficient was seen between KCCQ and MLHF (r= -0.44, P≤0.000 for the clinical summary; r= -0.45, P≤0.000 for the overall summary). Analysing the data from 50 healthy persons and 150 patients were shown that the Persian version of KCCQ has acceptable discriminate validity for all domains except self-efficacy. The Persian version of the KCCQ had satisfactory reliability and validity for assessing health-related quality of life status for Iranian CHF patients.

The present study aimed to determine the relationship between New York Heart Association (NYHA) classification and disease characteristics on the quality of life scores and the distribution of the scores at different stages of Heart Failure (HF).
A total of 150 patients with HF participated in this cross-sectional study. The method of data collection was interview based on NYHA classification and using the validated Persian version of the Kansas City Cardiomyopathy Questionnaire (PKCCQ).
According to NYHA classification, 10% of patients were classified as mild HF, 16% as moderate HF, 63% as severe HF, and 11% as very severe HF. Significant differences were observed for total score and the component scores of PKCCQ among four stages of the disease (P Distribution of the quality of life scores in patients with different stages of HF showed that quality of life scores overlap in the severe and very severe stages. Classifying the disease using NYHA classification cannot distinct patients with HF according to impairments in their health status between severe and very severe stages. In addition, the degree of education is the factor that may affect the quality of life.

The purpose of the present study was to determine the influence of demographic variables and disease characteristics on the quality of life scores and the distribution of the scores at different stages of Chronic Obstructive Pulmonary Disease (COPD). One hundred patients with COPD participated in this cross-sectional study. Interview and the validated Persian version of the clinical COPD questionnaire (PCCQ) were used for data collection. The method of data collection for the study was interview with a demographic and validated Persian version of the clinical COPD questionnaire (PCCQ). Six percent of patients were revealed as mild COPD, 34 percent of patients as moderate COPD, 49 percent of patients as severe COPD and 11 percent of patients as very severe COPD. Significant differences were observed for total score and the component scores of the PCCQ among four stages of the disease. The age and length of the disease correlated significantly with the total PCCQ score (P<0.05). In order to compare between the CCQ total score and three domains of male and female groups, the results showed that women compared to men had lower quality of life in CCQ total score and functional areas (P<0/5). Distribution of the quality of life scores in patients with different stages of COPD patients showed that there is an overlap quality of life scores in the mild, moderate, severe and very severe stages of COPD patients. As a result, classifying the disease using spirometry cannot distinct patients with COPD according to impairments in their health status. In adittion, the age, sex and length of the disease are the main factors that may affect the quality of life.