scholarly journals Psychometric properties of the thyroid-specific quality of life questionnaire ThyPRO in Singaporean patients with Graves’ disease

2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Huiling Liew ◽  
Torquil Watt ◽  
Luo Nan ◽  
Alvin W. K. Tan ◽  
Yiong Huak Chan ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Psychometric Properties ◽  
Internal Consistency ◽  
Effect Size ◽  
Measurement Properties ◽  
Graves Disease ◽  
Life Questionnaire ◽  
Cronbach’S Alpha ◽  
Cronbach's Alpha

Abstract Background Graves’ disease is the most common cause of hyperthyroidism. It results in accelerated tissue metabolism with multi-organ involvement ranging from cardiovascular to neuropsychological function. This results in a negative impact on the quality of life (QOL) of the individual patient. We aim to evaluate the psychometric properties of ThyPRO, a Thyroid-related Patient Reported Outcome questionnaire, and validate its use in our multi-ethnic Asian patients with Graves’ hyperthyroidism. Methods Forty-seven consecutive Graves’ hyperthyroidism patients answered the ThyPRO questionnaire at baseline and at 4 months after treatment initiation. Data were recorded for thyroid related symptoms and signs, thyroid function tests and thyroid volume. We analyzed the internal consistency using Cronbach’s alpha, construct validity by evaluating relationship between clinical variables and ThyPRO scales, ceiling and floor effects, and responsiveness of ThyPRO to treatment based on Cohen’s effect size. Results Correlations between individual scale scores and free thyroxine concentrations were moderate and statistically significant: 0.21–0.64 (p <  0.05). There was high internal consistency between the items in this instrument, Cronbach’s alpha > 0.7 for all scales. ThyPRO was responsive to the changes in QOL after treatment (Effect Size: 0.20–0.77) in 9 of the 14 scales including the hyperthyroid symptoms and psychosocial scales (Tiredness, Cognitive complaints, Anxiety, Emotional susceptibility, Impact on Social, Daily and Sex life). Conclusion This study provides evidence that ThyPRO has satisfactory measurement properties in hyperthyroid Graves’ disease patients in Singapore population with the potential to complement clinical care.

scholarly journals Polish Adaptation of the Italian Spine Youth Quality of Life Questionnaire

2021 ◽  
Vol 10 (10) ◽  
pp. 2081
Author(s):  
Edyta Kinel ◽  
Krzysztof Korbel ◽  
Piotr Janusz ◽  
Mateusz Kozinoga ◽  
Dariusz Czaprowski ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Internal Consistency ◽  
Spinal Deformity ◽  
Cultural Adaptation ◽  
Life Questionnaire ◽  
Alpha Coefficient ◽  
Cronbach’S Alpha ◽  
Quality Of Life Questionnaire ◽  
Cronbach's Alpha

The study aimed to carry on the process of the cultural adaptation of the Italian Spine Youth Quality of Life Questionnaire (ISYQOL) into Polish (ISYQOL-PL). The a priori hypothesis was: the ISYQOL-PL questionnaire is reliable and appropriate for adolescents with a spinal deformity. Fifty-six adolescents (mean age 13.8 ± 1.9) with idiopathic scoliosis (AIS) with a mean Cobb angle 29.1 (±9.7) and two with Scheuermann juvenile kyphosis (SJK) with a kyphosis angle 67.5 (±17.7) degrees were enrolled. All patients had been wearing a corrective TLSO brace for an average duration of 2.3 (±1.8) years. The Institutional Review Board approved the study. The cross-cultural adaptation of the ISYQOL-PL was performed following the guidelines set up by the International Quality of Life Assessment Project. The reliability was assessed using internal consistency (the Cronbach’s alpha coefficient) and test–retest reliability (intraclass correlation coefficient ICC2.1, CI = 95%); moreover, floor and ceiling effects were calculated. The internal consistency was satisfactory (Cronbach’s alpha coefficient 0.8). The test–retest revealed high reliability with the value of ICC2.1 for the entire group 0.90, CI (0.84 to 0.94). There was neither floor nor ceiling effect for the ISYQOL-PL overall score. The ISYQOL-PL is reliable and can be used in adolescents with spinal deformity.

scholarly journals Validation of Acromegaly Quality of Life Questionnaire (AcroQol) for the Iranian Population

2021 ◽  
Author(s):  
Mina Danaei ◽  
Leyla Bahadorizadeh ◽  
Afsaneh Dehnad ◽  
Shirin Mohamadzadeh ◽  
Nahid Hashemi-Madani ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Internal Consistency ◽  
Content Validity ◽  
Path Coefficient ◽  
Life Questionnaire ◽  
Cronbach’S Alpha ◽  
Quality Of Life Questionnaire ◽  
Cronbach's Alpha ◽  
Psychological Dimensions

Abstract Background: Acromegaly is a chronic disease seriously impacting the patients' quality of life. This study aimed to validate the Acromegaly Quality of Life Questionnaire (AcroQoL) for the Persian-speaking population.Methods: This cross-sectional study recruited 73 Iranian patients with a confirmed diagnosis of acromegaly. The content validity of the scales was evaluated by an expert panel of eight endocrinologists. Construct validity was assessed by using confirmatory factor analysis. Internal consistency was assessed on the basis of Cronbach’s alpha, and a goodness-of-fit (GoF) index was calculated to display whether the model fitted the data.Results: The content validity index (CVI) and content validity ratio (CVR) yielded values of 0.85 and 0.80, respectively. The average variance extracted (AVE) from physical and psychological dimensions was 0.520 and 0.462, respectively, exceeding the minimum criterion of 0.40. Cronbach’s alpha for physical and psychological dimensions equaled 0.868 and 0.866, respectively, indicating the adequate internal consistency of multiple items for each construct. The subscales’ R square and path coefficient were greater than the recommended threshold (physical dimension: 0.778, psychological dimension: 0.873), demonstrating the suitability of this criterion. Finally, the GoF value of 0.29 indicated the model's moderate fit.Conclusions: The findings revealed that the Persian version of AcroQoL is of adequate validity and reliability for evaluating the quality of life of Iranian people with acromegaly.

scholarly journals Validation of Acromegaly Quality of Life Questionnaire (AcroQol) for the Iranian Population

2022 ◽  
Author(s):  
Mina Danaei ◽  
Leyla Bahadorizadeh ◽  
Afsaneh Dehnad ◽  
Shirin Mohamadzadeh ◽  
Nahid Hashemi-Madani ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Internal Consistency ◽  
Content Validity ◽  
Path Coefficient ◽  
Life Questionnaire ◽  
Cronbach’S Alpha ◽  
Quality Of Life Questionnaire ◽  
Cronbach's Alpha ◽  
Psychological Dimensions

Abstract Background Acromegaly is a chronic disease seriously impacting the patients' quality of life. This study aimed to validate the Acromegaly Quality of Life Questionnaire (AcroQoL) for the Persian-speaking population. Methods This cross-sectional study recruited 73 Iranian patients with a confirmed diagnosis of acromegaly. The content validity of the scales was evaluated by an expert panel of eight endocrinologists. Construct validity was assessed by using confirmatory factor analysis. Internal consistency was assessed on the basis of Cronbach’s alpha, and a goodness-of-fit (GoF) index was calculated to display whether the model fitted the data. Results The content validity index (CVI) and content validity ratio (CVR) yielded values of 0.85 and 0.80, respectively. The average variance extracted (AVE) from physical and psychological dimensions was 0.520 and 0.462, respectively, exceeding the minimum criterion of 0.40. Cronbach’s alpha for physical and psychological dimensions equaled 0.868 and 0.866, respectively, indicating the adequate internal consistency of multiple items for each construct. The subscales’ R square and path coefficient were greater than the recommended threshold (physical dimension: 0.778, psychological dimension: 0.873), demonstrating the suitability of this criterion. Finally, the GoF value of 0.29 indicated the model's moderate fit. Conclusions The findings revealed that the Persian version of AcroQoL is of adequate validity and reliability for evaluating the quality of life of Iranian people with acromegaly.

scholarly journals Adaptation and Validation of the Diabetes-39 Quality-of-Life Questionnaire for the Moroccan Population

2020 ◽  
Vol 2 (1) ◽  
pp. 7-14
Author(s):  
Latifa Adarmouch ◽  
Keyword(s):  
Quality Of Life ◽  
Psychometric Properties ◽  
Disease Severity ◽  
Reliability And Validity ◽  
Life Questionnaire ◽  
Cronbach’S Alpha ◽  
Social Burden ◽  
Cronbach's Alpha ◽  
Patients With Diabetes

Objective: To translate and adapt to the Moroccan context the diabetes-39 questionnaire, and to assess the psychometric properties of the adapted version among Moroccan patients with diabetes. Materials and Methods: The questionnaire was translated from English to spoken Arabic, then back translated to English. A consensus meeting discussed discrepancies and major changes. The adapted version was administered to 92 patients with type 2 diabetes to assess its psychometric properties. Inter-item correlation, item-to-dimension correlation, and Cronbach’s alpha were calculated to assess internal consistency. Additionally, construct validity was assessed using means comparison of domains scores according to the general perception of the quality of life and the perception of disease severity. Results: Participants’ mean age was 56.4 ± 10.9. The sample was constituted predominantly by women. Cronbach’s alpha ranged from 0.65 for “social burden” and 0.93 for “diabetes control”. Items showed a higher correlation with their own domain as compared to other domains. Higher scores of the five domains of the diabetes-39 were associated with the perception of lower quality of life and higher disease severity. Conclusion: The results of this study support the reliability and validity of the Moroccan version of the diabetes-39 questionnaire. They justify its use and further assessment among our patients with diabetes.

scholarly journals Psychometric properties of the Brazilian version of the Wound Quality of Life questionnaire

Rev Rene ◽  
2020 ◽  
Vol 21 ◽  
pp. e43855
Author(s):  
Tatiele Naiara Vogt ◽  
Pamella Naiana Dias Santos ◽  
Maria de Fátima Mantovani ◽  
Dabna Hellen Tomim ◽  
Paulo Ricardo Bittencourt Guimarães ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Quality Assessment ◽  
Psychometric Properties ◽  
Life Quality ◽  
Life Questionnaire ◽  
Cronbach’S Alpha ◽  
Cronbach's Alpha ◽  
Validated Questionnaire ◽  
Brazilian Version

Objective: to evaluate the criterion validity and reliability of the Portuguese-Brazilian version of the Wound Quality of Life. Methods: methodological research with 100 participants. For criterion and reliability validation, the items in the Wound Quality of Life questionnaires were correlated with the Freiburg Life Quality Assessment Wound - Wound Version, using the Spearman correlation test and Cronbach’s alpha. Results: the validity of concurrent criteria had a strong magnitude (0.85) when correlated with the Freiburg Life Quality Assessment Wound; the internal consistency had a Cronbach’s alpha of 0.84. Conclusion: the validated questionnaire has good psychometric properties, is brief, easy to apply and reliable for assessing the quality of life of patients with wounds that are difficult to heal.

scholarly journals Psychometric properties of the Farsi translation of Maternal Postpartum Quality of Life Questionnaire(MAPP-QOL).

2020 ◽  
Author(s):  
Mokhtarian-Gilani Tahereh ◽  
Nourossadat Kariman ◽  
Sharif Nia Hamid ◽  
Giti Ozgoli ◽  
Mahbobeh Ahmadi Doulabi ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Psychometric Properties ◽  
Content Validity ◽  
Postpartum Women ◽  
Life Questionnaire ◽  
Cronbach’S Alpha ◽  
Quality Of Life Questionnaire ◽  
Cronbach's Alpha ◽  
Farsi Version

Abstract Background and Objective Many studies have been conducted in Iran on the postpartum quality of life, and the majority have used the general quality of life questionnaire. With a specific tool in this context, the dimensions of maternal postpartum quality of life can be more accurately determined. The present study was conducted to determine psychometric properties and validation of the Farsi version of Maternal Postpartum Quality of Life (MAPP-QOL). Materials and Methods The present methodological study was conducted in 2018. The original version of MAPP-QOL was translated into Farsi by backward method. Ina cross-sectional study, the Farsi version was completed by 407 eligible postpartum women with 1-3 weeks infant, aged 18 to 47 living the city of Tehran. Reliability of the questionnaire was assessed using Cronbach's alpha coefficient and retest. For construct validity, exploratory and confirmatory factor analyses were used. Results The MAPP-QOL showed good content validity; content validity ratio (CVR) ranged from 0.6 to 1.00 and content validity index (CVI) ranged from 0.7 to 1.00. Using exploratory factor analysis, five factors were extracted, including Socioeconomic; Relational/Family-Friends; Psychological/Baby; and Health & Functioning ; relational/ spouse-partner. which together explained 78.84% of total variance. After modifications of CFA, all goodness of fit indices confirmed the model fit (χ2 = 1677.57; N = 200; df= 644, P < 0.001; PCFI = 0.831; PNFI = 0.786; CMIN/DF = 2.604; RMSEA = 0.051; IFI = 0.908, CFI = 0.907) . The Cronbach’s alpha, McDonald’s omega, Composit reliability and maximum reliability H of the five extracted factors were excellent (0.9<). Also the AIC values of factors were good (between 0.721 to 0.859) . All of factors had an convergent and divergent validity. Conclusion Appropriate psychometric properties and factor construct of the questionnaire were confirmed. Hence, MAPP-QOL can be used as a suitable tool in Iranian postpartum women.

scholarly journals Translation and validation of the Arabic version of the osteoarthritis quality of life questionnaire (OAQoL) in Saudi patients with osteoarthritis

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Mansour AlAjmi ◽  
Sameer Al-Ghamdi
Keyword(s):  
Quality Of Life ◽  
Internal Consistency ◽  
Intraclass Correlation ◽  
Arabic Language ◽  
Life Questionnaire ◽  
Arabic Version ◽  
Cronbach’S Alpha ◽  
Cronbach's Alpha ◽  
Quality Of Life Scale

Abstract Background Osteoarthritis (OA) is a debilitating multifactorial degenerative rheumatic disease affecting millions of people around the globe. The osteoarthritis quality of life scale (OAQoL), originally produced in the English language, is an important tool used to assess the overall impact of OA and its treatment on the patient’s quality of life. Purpose The purpose of the study was to translate and validate the OAQoL in the Arabic language in order to use it on the Saudi population. Methodology A bilingual panel comprising four healthcare professionals and one external certified medical translator translated the English version of the OAQoL to the Arabic language. A back translation was subsequently performed by two English-speaking translators and any differences were resolved by conferring with the original panel. The qualitative research was performed through cognitive debriefing interviews (CDIs) with 59 native Arabic patients who had clinically and radiologically confirmed osteoarthritis of any joint. The internal consistency of the 22 items was derived by leveraging the Cronbach’s Alpha coefficient. Results 59 participants were included in the study, and more than half (52.5%) of them were men. The response rate was 100% and the mean time taken to answer the questionnaire was 10.5 min. The average Intraclass Correlation Coefficient (ICC) and Cronbach’s Alpha were determined to be 0.93 each, indicating that all the items in the OAQoL were significantly interrelated. Conclusion The translated Arabic version of the OAQoL questionnaire used in this study is a reliable and consistent tool that showed good comprehensibility and internal consistency.

scholarly journals Psychometric Properties of the Quality of Life Questionnaire - Cervical Cancer 24 (QLQ CX 24)

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Radica Zivkovic Zaric ◽  
Marija Zivkovic Radojevic ◽  
Katarina Krasic ◽  
Jasmina Milovanovic ◽  
Slobodan Jankovic
Keyword(s):  
Quality Of Life ◽  
Cervical Cancer ◽  
Psychometric Properties ◽  
Convergent Validity ◽  
Life Questionnaire ◽  
Cronbach’S Alpha ◽  
Quality Of Life Questionnaire ◽  
Cronbach's Alpha ◽  
Cancer Of The Cervix

Abstract Introduction: Cancer of the cervix has a progressive character and is one of the most significant public health problems in many countries. Our research aimed to translate EORTC QLQ CX 24 (European Organization for Research and Treatment of Cancer; Quality of life questionnaire-cervical cancer 24) from English to Serbian, to create essential cultural adaptations and to analyze psychometric properties of the translation in a model of female inpatients with cancer of the cervix. Method: The QLQ CX 24 was translated and adapted according to internationally established guidelines, and then tested on a sample of 100 Serbian females with cancer of the cervix. The testing was repeated three times on the same patients. We calculated the internal consistency (Cronbach’s alpha), criterion validity, convergent validity, and discriminative validity of the QLQ CX 24. We used factor analysis to discover the original construct. Results: The Serbian translation of QLQ CX 24 showed good internal consistency, showed satisfactory reliability, and temporal stability. In the first, when was rated by the investigators Cronbach’s alpha was 0.607, and one month later when the questionnaire also was rated by investigators Cronbach’s alpha was 0.696. When the scale was rated by females themselves Cronbach’s alpha was 0.802. Divergent as well as convergent validity tests had good results. The factorial analysis exposed six domains.Conclusion: The Serbian translation of QLQ CX 24 is a trustworthy and appropriate specific instrument for measuring the quality of life in females with cervical cancer.

scholarly journals Translation, adaptation and initial validation of Food Allergy Quality of Life Questionnaire: child form in Greek

2016 ◽  
Vol 4 (1) ◽  
Author(s):  
Zoe Morou ◽  
Georgios N. Lyrakos ◽  
Nikolaos G. Papadopoulos ◽  
Nikolaos Douladiris ◽  
Athina Tatsioni ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Factor Analysis ◽  
Food Allergy ◽  
Convergent Validity ◽  
Underlying Structure ◽  
Life Questionnaire ◽  
Cronbach’S Alpha ◽  
Quality Of Life Questionnaire ◽  
Cronbach's Alpha

The aim of the study is to determine the reliability and validity of the Greek version of the Food Allergy Quality of life Questionnaire- Child Form (FAQLQ-CF). After linguistic validation, the Greek FAQLQCF, Food Allergy Independent Measure (FAIM) and Pediatric Quality of Life Inventory (PedsQL™) were used by a physician to interview children diagnosed with food allergy and aged 8-12 via telephone. Cronbach’s alpha was used to evaluate reliability, and factor analysis to assess construct validity. The correlation between FAQLQ-CF and FAIM was moderate (rho=0.509, P&lt;0.001) and internal consistency was strong (Cronbach’s alpha 0.905). FAQLQ-CF discriminated well each question’s contribution to children’s quality of life deterioration (32- 80%), each child’s quality of life (17-89%), children differing in doing things with others (total score 3.55 vs 2.57, difference =0.98 &gt; minimal clinical importance difference = 0.5; P&lt;0.001), but not children differing in reporting anaphylaxis. The total FAQLQ-CF score correlated with the total PedsQL™ score and with the score of one of PedsQL™ subscales, demonstrating convergent validity. Factor analysis uncovered an underlying structure of four factors, explaining 50% of the variance. We can conclude that Greek FAQLQ-CF is a reliable, valid, discriminant tool for interviewing food allergic children aged 8- 12, detecting those in need for immediate care.

scholarly journals Reliability and Validity of 39-Item Parkinson’s Disease Questionnaire and Parkinson’s Disease Quality of Life Questionnaire

2017 ◽  
Vol 30 (5) ◽  
pp. 395 ◽  
Author(s):  
Joana Jesus-Ribeiro ◽  
Elsa Vieira ◽  
Pedro Ferreira ◽  
Cristina Januário ◽  
António Freire
Keyword(s):  
Quality Of Life ◽  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Life Questionnaire ◽  
Cronbach’S Alpha ◽  
Quality Of Life Questionnaire ◽  
Cronbach's Alpha ◽  
Disease Questionnaire ◽  
Parkinson’S Disease Questionnaire

Introduction: Parkinson’s disease has a significant impact in quality of life, which can be assessed with 39-item Parkinson’s Disease Questionnaire and Parkinson’s Disease Quality of Life Questionnaire. This study aimed to evaluate the reliability and validity of these scales in Portuguese patients.Material and Methods: Reliability was assessed through internal consistency (Cronbach’s alpha) and reproducibility (intraclass correlation coefficient). Regarding construct validity, we performed one-way analysis of variance across different groups according to modified Hoehn and Yahr scale. For criterion validity, we compared both scales with each other and with the Short Form 36-item Health Survey.Results: In a total of 100 patients with Parkinson’s disease, Cronbach’s alpha ranged for 39-item Parkinson’s Disease Questionnaire between 0.66 - 0.98, and for Parkinson’s Disease Quality of Life Questionnaire, between 0.78 - 0.98. Intraclass correlation coefficient for 39-item Parkinson’s Disease Questionnaire ranged between 0.49 - 0.96, and for Parkinson’s Disease Quality of Life Questionnaire, ranged between 0.65 - 0.96. Both scales showed, in general, capacity to discriminate differences among patients in the different stages of disease. The scales presented moderate to strong magnitude correlations with some Short Form 36-item Health Survey domains.Discussion: Cronbach’s alpha coefficients for most domains were satisfactory. Overall, it has been demonstrated good reproducibility, as well as construct and criterion validity.Conclusion: The Portuguese versions of both scales showed to be valid and reliable.

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