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Psychometric responsiveness of the health-related quality of life questionnaire (HeartQoL-P) in the Iranian post-myocardial infarction patients.

ABSTRACT: BACKGROUND:Cardiovascular diseases (CVD) as a most frequent and costly NCDs account for about 17.3 million annual deaths worldwide. About 80% of these deaths are taking place in low and middle income countries (LMIC). The survivors may experience severe disabling consequences with extensive impacts on their quality of life. The HeartQoL is a relatively new scale to measure health-related quality of life in CVD patients and was validated for use in other languages. Main aim of the present study was to validate the HeartQoL for Persian speaking populations. DESIGN AND METHODS:In this cross-sectional study the participants were 557 admitted patients with acute myocardial infarction (AMI) across three specialized hospitals in Tabriz, North West of Iran from Sep 2014 to Feb 2015. Translation back-translation procedures were applied to prepare the Persian version of the HeartQol (HeartQoL-P) and the content validity of the scale was evaluated by an expert panel of 10 academic staff. Construct validity was assessed by exploratory and confirmatory factor analyses. The internal consistency was assessed based on the numeric value of Cronbach's alpha and sensitivity of the measure according to the ceiling and floor effect's values. RESULTS:The two-factor structure of the HeartQoL-P was supported by the confirmatory factor analysis' outputs and good internal consistency measures (total score ??=?0.94) (physical subscale (10 items) ??=?0.95) and emotional subscale (4items) ??=?0.80)). No ceiling and floor effects were observed for the overall HeartQol-P's score. CONCLUSION:The findings supported the HeartQoL-P usability as a valid instrument in studies on the Iranian or other Persian speaking patients.

SUBMITTER: Ranjandish F

PROVIDER: S-EPMC6332636 | biostudies-other | 2019 Jan

REPOSITORIES: biostudies-other

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Psychometric responsiveness of the health-related quality of life questionnaire (HeartQoL-P) in the Iranian post-myocardial infarction patients.

Ranjandish F F Mahmoodi H H Shaghaghi A A

Health and quality of life outcomes 20190114 1

<h4>Background</h4>Cardiovascular diseases (CVD) as a most frequent and costly NCDs account for about 17.3 million annual deaths worldwide. About 80% of these deaths are taking place in low and middle income countries (LMIC). The survivors may experience severe disabling consequences with extensive impacts on their quality of life. The HeartQoL is a relatively new scale to measure health-related quality of life in CVD patients and was validated for use in other languages. Main aim of the present ...[more]

PMID: 30642328

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Project description:BACKGROUND:Assessing quality of life (QOL) in elderly needs specific instruments. The Older People's Quality of Life Questionnaire (OPQOL-35) is one of the common tools that used for measuring quality of life in elderly populations. The questionnaires contains 35 items tapping into eight domains including life overall, health, social relationships and participation, independence, control over life and freedom, home and neighborhood, psychological and emotional well-being, financial circumstances, culture and religion. This study aimed to translate and validate the OPQOL-35 in Iran. METHODS:Forward-backward procedure was applied to translate the original questionnaire from English into Persian. Then following qualitative face and content validity, a sample of elderly people completed the questionnaire. In order to evaluate the construct validity, exploratory and confirmatory factor analyses was performed. Subsequently, convergent and divergent validity of the factors were evaluated. Reliability was evaluated by performing internal consistency analysis and Intraclass Correlation Coefficients (ICC). RESULTS:In all 500 older people completed the questionnaire. The mean age of participant was 68.92 (SD?=?6.97) years, and mostly were males (66.6%). The result of exploratory factor analysis showed 8 factors with Eigen values of greater than one, which explained 67.4% of the variance observed. Confirmatory factor analysis showed acceptable fit indexes for the data [Comparative Fit Index (CFI)?=?0.92, Minimum Discrepancy Function by Degrees of Freedom divided (CMIN/DF)?=?2.832, Root Mean Square Error of Approximation (RMSEA)?=?0.067]. The convergent and divergent validity did not support three latent factors (Life overall, Independence, control over life, freedom and Psychological and emotional well-being). Convergent and divergent validity shown that construct fulfilled for the health, social relationships and participation, home and neighborhood, financial circumstances, culture and religion latent factors, however the results did not support the convergent and divergent validity for three latent factors (Life overall, Independence, control over life, freedom and Psychological and emotional well-being). Cronbach's alpha coefficient for the subscales ranged from 0.65-0.95. Test-retest reliability (ICC) of the questionnaire with two weeks interval were ranged from 0.88-0.95 indicating a good range of reliability. CONCLUSION:The findings suggest that the Iranian version of OPQOL-35 is a valid measure for assessing quality of life in elderly populations in different settings.

Project description:BackgroundThis study aimed to develop a Thai version of the Dry Eye-Related Quality-of-Life Score (DEQS-Th) questionnaire and evaluate its validity, reliability, and feasibility among Thai participants.MethodsThe DEQS-Th, a 15-item self-report measuring dry eye and its impact on quality of life (QOL) was developed based on the DEQS. The questionnaire was divided into two subscales: Bothersome Ocular Symptoms (six questions), and Impact on Daily Life (nine questions). It employed a 5-point Likert scale, addressing on both the frequency and the degree of symptoms. Backward and forward and cultural adaptation process translation methods were employed. Thirty healthy participants were enrolled to evaluate the feasibility of the DEQS-Th in terms of difficulty and convenience. Reliability was assessed using internal consistency determined by Cronbach's alpha, with values > 0.7 considered acceptable. Convergent validity was determined by the correlation between DEQS-Th and overall health status. Confirmatory factor analysis was conducted for its factor structure.ResultsThe participants' mean age was 38.6 ± 12.9 years, and 23 (76.7%) were females. The mean time to complete the questionnaire was 9.3 ± 2.7 min. The Cronbach's alpha of the ocular symptoms subscale, impact on QOL subscale, and summary score on frequency and degree were 0.80 and 0.70, 0.89 and 0.89, and 0.90 and 0.89, respectively. The overall health status significantly correlated with the summary score (r = 0.564, p = .001), subscale ocular symptoms (r = 0.594, p = .001), and impact on QOL scores (r = 0.626, p < .001) of the DEQS-Th, respectively. A one-factor model fitted the data the best for both the ocular symptoms subscale (CFI = 1.000, TLI = 1.000, RMSEA = 0.000) and the impact on QOL subscale (CFI = 0.998, TLI = 0.997, RMSEA = 0.053).ConclusionWhen tested among normal participants, the DEQS-Th is a valid and reliable measurement for dry eye symptoms and impact on QOL.

Project description:BACKGROUND:Despite a high cardiovascular disease burden, data on patient-reported health status outcomes among individuals with cardiovascular disease in India are limited. METHODS AND RESULTS:Between November 2014 and November 2016, we collected health-related quality of life data among 1261 participants in the ACS QUIK trial (Acute Coronary Syndrome Quality Improvement in Kerala). We used a translated, validated version of the Seattle Angina Questionnaire administered 30 days after discharge for acute myocardial infarction, wherein higher scores represent better health status. We compared results across sex, myocardial infarction type, and randomization status using regression models that account for clustering and temporal trends. Mean (SD) age was 60.8 (13.7) years, 62% were men, and 63% presented with ST-segment-elevation myocardial infarction. More than 2 out of 5 respondents (44%) experienced angina 30 days after hospitalization, but most (68% of respondents with angina; 27% of the total sample) experienced it less than once per week (Seattle Angina Questionnaire angina frequency score 60). Respondents rated high median (interquartile range [IQR]) scores for angina frequency (100.0 [80.0-100.0]) overall with similar unadjusted scores by sex, but between-hospitality variability was high. Median (IQR) physical limitation scale response was 58.3 (41.7-77.8), which is consistent with limitations in moderate- and high-intensity activities at 30-day follow-up. Older respondents had more angina frequency and physical limitations and lower treatment satisfaction and quality of life. Women had greater physical limitations (median [IQR], 52.8 [38.9-72.2] for women versus median [IQR], 61.1 [44.4-80.6] for men; P<0.01). Overall treatment satisfaction was high with median (IQR) score, 81.3 (75.0-93.8), but overall quality of life was lower with median (IQR) score, 66.7 (50.0-83.3). Allocation to the quality improvement intervention group had the strongest direct association with higher quality of life (difference, 4.2; P=0.03), but overall effects were modest. CONCLUSIONS:This study represents the largest report of quality of life among myocardial infarction survivors in India with variability across age, sex, and quality improvement intervention status. Wide variability demonstrated across hospitals warrants further study. CLINICAL TRIAL REGISTRATION:URL: https://www.clinicaltrials.gov . Unique identifier: NCT02256657.

Project description:BACKGROUND:To evaluate the psychometric characteristics of the 1-month recall Uterine Fibroid Symptom and Health-Related Quality of Life questionnaire (UFS-QOL), including the Revised Activities subscale. METHODS:VENUS I and II were phase III, randomized, double-blind, placebo-controlled trials of ulipristal acetate in women with uterine fibroids (UF) and abnormal uterine bleeding. Women completed the 1-month recall UFS-QOL at baseline and after 12?weeks' treatment. Uterine bleeding was assessed via a daily diary (both studies); the Patient Global Impression of Improvement scale (PGI-I) was completed in VENUS II. Psychometric analyses examined internal consistency reliability and construct validity of the UFS-QOL; confirmatory factor analysis (CFA) compared model fit of the original and Revised Activities subscales. Analyses were conducted separately for VENUS I and II. RESULTS:One hundred and fifty-seven patients in VENUS I and 429 in VENUS II were included. Changes in mean Symptom Severity and health-related quality of life (HRQoL) scale scores indicated symptom burden reductions and HRQoL improvements. Cronbach's alpha coefficients were high at baseline and after 12?weeks' treatment (all ?0.76, meeting the >0.70 threshold), demonstrating strong internal consistency reliability. Correlations between UFS-QOL scores and bleeding diary responses (range: -0.35 to -0.63), and UFS-QOL scores and PGI-I responses (range: -0.48 to -0.70), ranged from moderate to strong after 12?weeks' treatment (all p?<?0.0001). Patients with absence of bleeding or controlled bleeding after 12?weeks' treatment scored significantly better (p?<?0.001) on each UFS-QOL scale than patients not achieving those end points, supporting construct validity. CFA confirmed model fit for the Revised Activities subscale. CONCLUSIONS:The 1-month recall UFS-QOL, including the Revised Activities subscale, is a valid, reliable measure to assess UF symptoms and their impact on HRQoL. TRIAL REGISTRATION:ClinicalTrials.gov, NCT02147197 . Registered May 26, 2014; retrospectively registered. ClinicalTrials.gov, NCT02147158 . Registered May 26, 2014; retrospectively registered.

Project description:IntroductionDrug dependence and the resultant problems notably decrease the quality of life (QOL). Measuring the QOL in persons who use drugs (PWUDs) and planning to improve it can be helpful for rehabilitation programs. Given the absence of a standard tool to measure the quality of life of PWUD, the present study is an attempt to validate psychometric and cultural characteristics of non-injection drug users' QOL scale.MethodThe study was carried out as a validation and methodological work. The study population consisted of 273 PWUDs in Kermanshah-based drug clinics including outgoing and hospitalized patients. The participants were selected through convenient-quota sampling. After securing the required permission from the copyright owner of the tool, it was forward/backward translated. Face validity and content validity were determined quantitatively and qualitatively. To examine construct validity of the tool, explorative factor analysis and confirmatory factor analysis were used. Internal consistency was measured using Cronbach's alpha and statistical analyses were performed using SPSS (v.25) and LISREL (v.8).ResultsExplorative factor analysis (EFA) and confirmatory factor analysis (CFA) results supported the tool with one factor and 22 items. The R2 index in the model was equal to 0.99, which means that 99% of the variation of dependent variable (total score of QOL) is attributed to independent variable (22 statements). In other words, 99% of the variation of dependent variable is due to the independent variables in the model. The main indices of the model based on CFA all were higher than 0.9, which indicates goodness of fit of the model (χ2/DF = 2.18, CFI, NFI, TLI = 0.93 GF = 0.84, REMSEA = 0.066, R2 = 0.99). The correlative coefficient was significant (p < 0.05). The reliability of the tool based on internal consistency (Cronbach's alpha) for the subscales ranged from 0.84 to 0.85 and equal to 0.84 for the whole tool.ConclusionThe Farsi version of non-injection drug users' QOL scale had acceptable indices and it was applicable to assess QOL in the target population. The tool can be used in different fields of drug addiction.

Dataset Information

Psychometric responsiveness of the health-related quality of life questionnaire (HeartQoL-P) in the Iranian post-myocardial infarction patients.

Publications

Psychometric responsiveness of the health-related quality of life questionnaire (HeartQoL-P) in the Iranian post-myocardial infarction patients.

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