scholarly journals Comparison between the English and Bahasa Malaysia language versions of the Visual Functioning Questionnaire (VFQ-25) for use in patients with cataracts

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Thanigasalam Thevi ◽  
Adinegara Lutfi Abas ◽  
Chang Stephanie Yen Li

Abstract Background We conducted the study to compare the psychometric properties of the English version of the Questionnaire and the Bahasa Malaysia (Malay Language) version regarding the vision-related Quality of Life of patients with cataracts. Methods The Malay version was translated by two independent translators who were well versed in both languages. We carried out a cross-sectional study collecting data between June 2017 and March 2018 in the pre-operative Eye Clinic of Hospital Melaka with 224 respondents (mean age 66.8 years) and another 204 respondents (mean age 64.3 years) participating in the English version and Malay version of the Questionnaire respectively. Methods used to validate the standard questionnaire included the use of construct validity via factor analysis and the deployment of reliability test through assessment of internal consistency via Cronbach’s alpha. Results We observed both English and Bahasa Malaysia versions to have high reliability with Cronbach’s alpha values of 0.90 and above in factors on difficulty with activities and responses to vision problems. Exploratory factor analysis performed revealed that the three-factor model fits the data well for the English version of the questionnaire - difficulty with activities (23.81 % of variance), responses to vision problem (22.22 % of variance) and general health and vision (14.68 % of variance). The Bahasa Malaysia version of the questionnaire produced three factors with two of the factors resembling the factors from the original version of the questionnaire - difficulty with activities (24.3 % of variance) and responses to vision problem (23.7 % of variance). Item response theory analysis revealed that these factors for both English and Bahasa Malaysia versions comprised of adequately fitted items. Conclusion The present study observed that both the English and Bahasa Malaysia versions of the NEI VFQ-25 have comparable construct validity to the original American version. With high validity and reliability, the tool shall be able to provide health care providers the assessment of impact due to cataract and other ophthalmic conditions on the vision-related quality of life of ophthalmic patients.

2020 ◽  
Author(s):  
Adinegara Lutfi Abas ◽  
Thanigasalam Thevi ◽  
Stephanie Yen Li Chang

Abstract Purpose: We conducted the study to compare the validation properties of the English version of the Questionnaire and the Bahasa Malaysia (Malay Language) version regarding the Quality of Life of patients with cataracts.Methods: We carried out a cross-sectional study collecting data between June 2017 and March 2018 in the pre-operative Eye Clinic of Hospital Melaka.The Malay version was translated by two independent translators who were well versed in both languages. Methods used to validate the standard questionnaire included the use of construct validity via factor analysis and the deployment of reliability test through assessment of internal consistency via Cronbach’s alpha. Results: We observed both English and Bahasa Malaysia versions to have high reliability with Cronbach’s alpha values of 0.90 and above in factors on difficulty with activities and responses to vision problems.Exploratory factor analysis performed revealed that the three-factor model fits the data well for the English version of the questionnaire - difficulty with activities (23.81% of variance), responses to vision problem (22.22% of variance) and general health and vision (14.68% of variance). The Bahasa Malaysia version of the questionnaire produced three factors with two of the factors resembling the factors from the original version of the questionnaire - difficulty with activities (24.28% of variance) and responses to vision problem (23.66% of variance). Conclusion: The present study observed that both the English and Bahasa Malaysia versions of the NEI VFQ-25 have comparable construct validity to the original American version. With high validity and reliability, the tool shall be able to provide health care providers the assessment of impact due to cataract and other ophthalmic conditions on the vision-related quality of life of ophthalmic patients.


2020 ◽  
Author(s):  
Thanigasalam Thevi ◽  
Adinegara Lutfi Abas ◽  
Stephanie Yen Li Chang

Abstract Purpose We conducted the study to compare the validation properties of the English version of the Questionnaire and the Bahasa Malaysia (Malay Language) version regarding the Quality of Life of patients with cataracts. Methods We carried out a cross-sectional study collecting data between June 2017 and March 2018 in the pre-operative Eye Clinic of Hospital Melaka. The Malay version was translated by two independent translators who were well versed in both languages. Methods used to validate the standard questionnaire included the use of construct validity via factor analysis and the deployment of reliability test through assessment of internal consistency via Cronbach’s alpha. Results We observed both English and Bahasa Malaysia versions to have high reliability with Cronbach’s alpha values of 0.90 and above in factors on difficulty with activities and responses to vision problems. Exploratory factor analysis performed revealed that the three-factor model fits the data well for the English version of the questionnaire - difficulty with activities (23.81% of variance), responses to vision problem (22.22% of variance) and general health and vision (14.68% of variance). The Bahasa Malaysia version of the questionnaire produced three factors with two of the factors resembling the factors from the original version of the questionnaire - difficulty with activities (24.28% of variance) and responses to vision problem (23.66% of variance). Conclusion The present study observed that both the English and Bahasa Malaysia versions of the NEI VFQ-25 have comparable construct validity to the original American version. With high validity and reliability, the tool shall be able to provide health care providers the assessment of impact due to cataract and other ophthalmic conditions on the vision-related quality of life of ophthalmic patients.


2020 ◽  
Author(s):  
Thanigasalam Thevi ◽  
Adinegara Lutfi Abas ◽  
Stephanie Yen Li Chang

Abstract Background We conducted the study to compare the validation properties of the English version of the Questionnaire and the Bahasa Malaysia (Malay Language) version regarding the Quality of Life of patients with cataracts.Methods We carried out a cross-sectional study collecting data between June 2017 and March 2018 in the pre-operative Eye Clinic of Hospital Melaka. The Malay version was translated by two independent translators who were well versed in both languages. Methods used to validate the standard questionnaire included the use of construct validity via factor analysis and the deployment of reliability test through assessment of internal consistency via Cronbach’s alpha. Results We observed both English and Bahasa Malaysia versions to have high reliability with Cronbach’s alpha values of 0.90 and above in factors on difficulty with activities and responses to vision problems.Exploratory factor analysis performed revealed that the three-factor model fits the data well for the English version of the questionnaire - difficulty with activities (23.81% of variance), responses to vision problem (22.22% of variance) and general health and vision (14.68% of variance). The Bahasa Malaysia version of the questionnaire produced three factors with two of the factors resembling the factors from the original version of the questionnaire - difficulty with activities (24.28% of variance) and responses to vision problem (23.66% of variance). Conclusion The present study observed that both the English and Bahasa Malaysia versions of the NEI VFQ-25 have comparable construct validity to the original American version. With high validity and reliability, the tool shall be able to provide health care providers the assessment of impact due to cataract and other ophthalmic conditions on the vision-related quality of life of ophthalmic patients.


2016 ◽  
Vol 4 (1) ◽  
Author(s):  
Zoe Morou ◽  
Georgios N. Lyrakos ◽  
Nikolaos G. Papadopoulos ◽  
Nikolaos Douladiris ◽  
Athina Tatsioni ◽  
...  

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<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 > minimal clinical importance difference = 0.5; P<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.


2000 ◽  
Vol 18 (18) ◽  
pp. 3295-3301 ◽  
Author(s):  
S.B. Detmar ◽  
N.K. Aaronson ◽  
L.D. V. Wever ◽  
M. Muller ◽  
J.H. Schornagel

PURPOSE: This study investigated (1) the attitudes of cancer patients toward discussing health-related quality-of-life (HRQL) issues; (2) the association between such attitudes and patients’ characteristics; and (3) oncologists’ attitudes and self-reported behavior regarding these same issues. PATIENTS AND METHODS: Two hundred seventy-three patients receiving palliative chemotherapy and ten physicians were asked to complete a series of questionnaires. RESULTS: Almost all patients wanted to discuss their physical symptoms and physical functioning and were also willing to address their emotional functioning and daily activities. However, 25% of the patients were only willing to discuss these latter two issues at the initiative of their physician. Patients varied most in their willingness to discuss their family and social life, with 20% reporting no interest in discussing these issues at all. Female patients were more reluctant to discuss various HRQL issues than male patients. Older and less well-educated patients were more likely to prefer that their physician initiate discussion of HRQL issues. All physicians considered it to be primarily their task to discuss the physical aspects of their patients’ health, whereas four physicians indicated that discussion of psychosocial issues was a task to be shared with other health care providers. All physicians indicated that they generally defer to their patients in initiating discussion of psychosocial issues. CONCLUSION: Although both patients and oncologists seem willing to discuss a wide range of HRQL issues, communication regarding psychosocial issues may be hampered by competing expectations as to who should take the lead in initiating such discussions.


Author(s):  
Concepción Soto-Vidal ◽  
Soraya Pacheco-da-Costa ◽  
Victoria Calvo-Fuente ◽  
Sara Fernández-Guinea ◽  
Carlos González-Alted ◽  
...  

Background: Stroke causes a wide variety of clinical manifestations that may have a negative impact on quality of life. Therefore, it is very important to use specific instruments for measuring quality of life in individuals who suffered a stroke. The aim of this study was to develop a psychometrically validated Spanish version of the Newcastle stroke-specific quality of life measure (NEWSQOL). Methods: A psychometric validation of the Spanish version of the NEWSQOL questionnaire was carried out in 159 patients. The reliability (intraclass correlation coefficient and Cronbach’s alpha coefficient), validity (factorial analysis and Spearman’s coefficient), feasibility (response rate), and the ceiling and floor effects were calculated. Results: Internal consistency showed that Cronbach’s alpha coefficient was 0.93. The test–retest reliability was high or excellent for all domains (range 0.71–0.97 p < 0.001). The response rate of the questionnaire was 100% and the average administration time was 20.5 (±7.2) min. No ceiling effect was detected and two domains (pain and vision) may have a significant potential for floor effect. Construct validity showed that all the variables are important enough to keep them all in the questionnaire. Concerning convergent construct validity, a high correlation was found with the Nottingham Health Profile, the Barthel Index, and the Modified Rankin Scale. Conclusion: The Spanish version of the NEWSQOL questionnaire is reliable, valid, and feasible to evaluate quality of life in the Spanish population.


2021 ◽  
Vol In Press (In Press) ◽  
Author(s):  
Soolmaz Zare ◽  
Ali Akbar Faghihi ◽  
Samira Seif ◽  
Ali Asghar Hayat

Background: Pregnancy and childbirth are sensitive and particular periods in women’s lives. Midwives play an essential role in ensuring mother’s and fetus’s health by the recognition of the needs and complexities of this period. Midwives increase the quality of care, gain the trust of pregnant women, communicate more effectively with them, and increase their satisfaction and cooperation by following the ethical principles and standards that express their professional commitment to society. Therefore, the awareness of the principles of professional ethics and adherence to the Charter of Patients’ Rights is a critical element of the midwife’s success in ensuring mother’s and neonate’s health. Therefore, monitoring the observance of these principles by midwives, similar to other health care providers, is essential to improve the quality of services and ultimately parturients’ satisfaction. For this purpose, it is necessary to have a valid and reliable tool to assess midwives’ professional ethics status. Objectives: In this study, a questionnaire was developed to assess this issue by parturients, who are primary stakeholders in this process. Methods: This qualitative and quantitative study was performed to design a reliable and valid questionnaire evaluating midwives’ professional ethics by parturients. Based on the literature review and consultation with midwifery professors and staff, the initial questionnaire was prepared with 26 items. A survey of 15 experts evaluated the content and face validity ratio. The final questionnaire with 20 items was completed by 200 parturients hospitalized in Valiasr Hospital of Fasa University of Medical Sciences, Fars, Iran, within 2018 - 2019. Exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) assessed the construct validity. The reliability was confirmed by the determination of internal consistency. Results: The 26 items of the questionnaire defined in the first step were reduced to 20 items with a content validity ratio higher than 0.49 and a content validity index higher than 0.79. Using EFA and CFA, 20 items were included in two dimensions and confirmed. Its reliability was reported as 0.89 using Cronbach’s alpha. Conclusions: This study aimed to design a valid and reliable questionnaire for the assessment of midwifery professional ethics in the delivery process. One strength of the present study, compared to those of mentioned studies, is performing both EFA and CFA. In this study, some goals of EFA consist of determining questionnaire dimensions, standardizing questionnaires, reducing the items (from variables to factors), and assessing homogeneity and discrimination in construct validity. The EFA is often used in the early stages of research to collect information about the interactions in a set of variables. The obtained results revealed that the designed questionnaire is a valid and reliable tool for the evaluation of midwifery professional ethics by parturients, which can be applied in other studies in Iran.


2020 ◽  
Vol 27 (2) ◽  
pp. 113-118
Author(s):  
Shigeharu Tanaka ◽  
Shawn M Robbins ◽  
Yu Inoue ◽  
Ryo Tanaka

Background/Purpose: Chronic symptoms related with hip osteoarthritis (OA) can negatively affect health-related quality of life (HRQoL). The purpose of this study was to examine factors related to a HRQoL measure that considers an Asian lifestyle in Japanese patients with hip OA. Methods: Forty-seven female subjects participated. The dependent variable was the Japanese Orthopaedic Association Hip Disease Evaluation Questionnaire (JHEQ), which assessed HRQoL. Potential factors were measured as independent variables. After screening, potential variables were entered into a multiple regression analysis to determine which variables were related to HRQoL. Results: In the regression model, knee extension muscle strength on the unaffected side and hip flexion range of motion (ROM) on the affected side were associated with HRQoL. Higher strength and higher ROM were related to greater HRQoL. Conclusion: Results can help health-care providers develop appropriate rehabilitation programs for improving HRQoL in patients with hip OA.


Author(s):  
Zhijia Tang ◽  
Xinying Jiang ◽  
Lan Hong ◽  
Zhen Feng ◽  
Qingfeng He ◽  
...  

(1) Objective: To assess the reliability and validity of the simplified Chinese version of the brief Diabetes Quality of Life (DQoL) questionnaire in measuring health-related quality of life (HRQoL) in Chinese type 2 diabetes (T2D) patients. (2) Methods: A cross-sectional validation study including 277 patients was conducted at a tertiary hospital in Shanghai, China during April–May, 2018. The English brief DQoL was forward and back-translated into simplified Chinese. The expert interview, exploratory factor analysis (EFA), and Spearman correlation with the 5-level version of EuroQoL-5 (EQ-5D-5L) were employed to establish its validity. The internal reliability was assessed by Cronbach’s alpha. Participants were also stratified into subgroups to evaluate if the Chinese brief DQoL had more test effectiveness in a specific subpopulation. (3) Results: No items were removed from the original English brief DQoL based on the results of factor analysis and expert interview. The Spearman coefficient revealed a low-moderate inverse correlation between DQoL and EQ-5D-5L index and visual analogue scale (VAS), respectively (ρ1 = −0.364, p < 0.0001; ρ2 = −0.514, p < 0.0001). The Cronbach’s alpha coefficient of the final scale was 0.731. (4) Conclusions: The simplified Chinese version of the brief DQoL questionnaire showed reasonable reliability and validity, suggesting its potential appropriateness for evaluating quality of life in Chinese T2D patients. More future efforts should be made to generalize the application of the findings.


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