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Differential Impact of Unilateral and Bilateral Classifications of Diabetic Retinopathy and Diabetic Macular Edema on Vision-Related Quality of Life
2016
Investigative Ophthalmology and Visual Science
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Differential impact of unilateral and bilateral classifications of diabetic retinopathy and diabetic macular edema on visionrelated quality of life. Invest Ophthalmol Vis Sci. 2016;57:4655-4660. ...
An IVI composite score for each individual was generated from the Rasch model and used in statistical analyses. ...
Presence of diabetes was defined as physician-diagnosed diabetes, and with the information retrieved from participants' case notes. ...
doi:10.1167/iovs.16-20165
pmid:27603726
fatcat:bisyrvweafbapoca4wlyrzzaaq
Dimensions Used in Instruments for QALY Calculation: A Systematic Review
2021
International Journal of Environmental Research and Public Health
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For the dimensions' and levels' selection, item response theory, Rasch analysis, and literature review were mostly used. ...
Dimensions and levels were validated by methods like the Loevinger H, the standardised response mean, or discussions with experts in the field. ...
Acknowledgments: We acknowledge the reviewers for their important comments. We thank Jie He from the University of Sherbrooke for her support. ...
doi:10.3390/ijerph18094428
pmid:33919471
fatcat:acwrgoohlbhublfu7yepv5lyly
Longitudinal Changes in Quality of Life and Rates of Progressive Visual Field Loss in Glaucoma Patients
2015
Ophthalmology (Rochester, Minn.)
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Keywords Rate of visual field loss; quality of life; NEI VFQ-25; Rasch model and glaucoma ...
Rasch analysis was performed to obtain final scores of disability as measured by the NEI VFQ-25. ...
Person and item measures were examined for fit to the Rasch model using infit and outfit item fit statistics. ...
doi:10.1016/j.ophtha.2014.08.014
pmid:25444345
pmcid:PMC4306625
fatcat:pbriexx25zg4fngwdeyrdqifue
The SAS Macro-Program %AnaQol to Estimate the Parameters of Item Responses Theory Models
2007
Communications in statistics. Simulation and computation
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Usual and general statistical packages like SAS do not allow users to perform classical analysis of items or to estimate parameters of most used models in this specific field: the practitioners must use ...
Its maximum likelihood estimator, under the assumption of a normal distribution of the error and the parallel model, is known as Cronbach's Alpha Coefficient (CAC) (Cronbach, 1951): ...
Acknowledgment The authors would like to particularly thank Véronique Sebille of the University of Nantes for her hepful comments and suggestions. ...
doi:10.1080/03610910601158351
fatcat:2pjve3rgfjdxjpml6wwovdadcu
Development and validation of an instrument to measure patient engagement in Hong Kong Special Administrative Region, China
2018
Patient Preference and Adherence
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Rasch analysis also confirmed that the model has a good fit (ranging from 0.662 to 1.294). All domains were considered internally consistent (alpha >0.7). ...
Rasch model and differential item functioning were also used to further confirm the fit of the instrument. Results: In all, 324 participants successfully completed the survey. ...
field of health care, mainly attributed to the change in disease epidemiology from infectious to chronic. 6 This change informed the medical professionals that the old paradigm of the health care system ...
doaj:22777a00bbca49b0ac0b593d323e89fa
fatcat:2daaivor6bdwxbjoqo6ixiylhm
Is the Pediatric Quality of Life Inventory Valid for Use in Preschool Children with Refractive Errors?
2010
Optometry and Vision Science
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The outcome measures were the overall score, and the "physical"; "emotional"; "social"; and "school" functioning subscales. Rasch analysis was used to validate the PedsQL 4.0. ...
The PedsQL 4.0 overall and subscale scores displayed substantial multidimensionality as the variance values explained by the measures was <25% in both groups. ...
Acknowledgments We thank the contributions made by the STARS team and the kind participation of all individuals in the STARS project. ...
doi:10.1097/opx.0b013e3181f6fb84
pmid:20852452
pmcid:PMC4041332
fatcat:qemb3p52qvcqjbsdy6segvmwom
The use of patient-reported outcome research in modern ophthalmology: impact on clinical trials and routine clinical practice
2019
Patient Related Outcome Measures
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We highlight recent examples of the use of PROMs as secondary outcome measures in randomized controlled clinical trials and consider the impact they have had. ...
This review article considers the rising demand for patient-reported outcome measures (PROMs) in modern ophthalmic research and clinical practice. ...
Rasch analysis is a special case of IRT, where the data are fit to a simple measurement model. This creates valid measurement to which parametric statistics can be applied. ...
doi:10.2147/prom.s162802
pmid:30774489
pmcid:PMC6352858
fatcat:3jopyhntgnae5diww5s6owh2gy
Latent structure of the Hospital Anxiety And Depression Scale: A 10-year systematic review
2012
Journal of Psychosomatic Research
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be targeted to more general measurement of distress. ...
While the HADS has been shown to be an effective measure of emotional distress, its inability to consistently differentiate between the constructs of anxiety and depression means that its use needs to ...
MeSH) and as a keyword. ...
doi:10.1016/j.jpsychores.2011.06.008
pmid:22325696
fatcat:giogtscluzgppb3b6luucy6mcm
Methods for evaluating quality of life and vision in patients undergoing lens refractive surgery
2019
Graefe's Archives for Clinical and Experimental Ophthalmology
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Conclusions This review describes the existing PROs instruments and informs the choice of an appropriate measure in lens refractive surgery. ...
Rasch-developed tools should be utilized for measuring quality of life and vision in patients undergoing lens refractive surgery and there is a number of highly robust tools available. ...
It was qualified to the best papers of the year session in cataract refractive surgery at American Academy of Ophthalmology annual meeting, New Orleans, November 11-14, 2017 ...
doi:10.1007/s00417-019-04270-w
fatcat:a7q4rwq4qneipczqm7x7igi5vi
Comparison of applications used to help the elderly
[chapter]
2021
Zdravje starostnikov / Health of the Elderly
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The literature search took place from March 2021 to April 2021. ...
Specifically, the technology for older adults is addressed for content that the elderly have the most needs in. ...
The keywords we used for searching literature were: elderly, technology, mobile application and ICT. ...
doi:10.26493/978-961-293-129-2.157-165
fatcat:fnusoxo7vbfglley3xj3h3cmhe
Quantitative morphology of the rat kidney during diabetes mellitus and insulin treatment
1997
Diabetologia
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Information on kidney morphology in hyperglycaemia and normoglycaemia is a prerequisite to understanding better the physiological abnormalities found in diabetic patients. ...
However, little is known about how fast the morphology changes following normalization of BG by insulin treatment and about the morphology of the diabetic kidney after insulin treatment or fasting. ...
This study was financially supported by the Danish Medical Research Council, the Danish Diabetes Association, the NOVO Foundation, the Ruth Kö nig Pedersen Foundation, Fonden til Laegevidenskabens Fremme ...
doi:10.1007/s001250050752
pmid:9243101
fatcat:tpvhb6472jfvzixa5ybe65oxfi
Translation and Validation of Computer Vision Syndrome Scale 17 (CVSS 17) – The Malay Version
2022
International Medical Journal Malaysia
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The CVSS17 underwent forward-backward translation, face validation, and field testing to produce the Malay version. ...
In comparison to the original version, 4 items (A2, A22, A28, A30) were swapped from internal to external symptom factors and 2 items (C16 and C23) swapped from external to internal symptom factors. ...
Phase 1 : 1 it was developed in 2014 by M Gonzalez-Perez et.al. using a Rasch model. ...
doi:10.31436/imjm.v21i2.1963
fatcat:3m6muc3bjbf25ox6sehrc2n2am
Assessing Competencies Needed to Engage With Digital Health Services: Development of the eHealth Literacy Assessment Toolkit
2018
Journal of Medical Internet Research
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Rasch models (RM) examined the fit of data. Tools were reduced in items to secure robust tools fit for screening purposes. ...
The fit to the RM was acceptable (Anderson CLR=30.3, df=17, P=.02), and CCA was .94. Tool 6 was reduced from 5 to 4 items. ...
Acknowledgments The study has received funding from The Danish Health Foundation (grant 15-B-0237). ...
doi:10.2196/jmir.8347
pmid:29748163
pmcid:PMC5968212
fatcat:nqzuimrt2zfntbdyyuwezjqqga
Wayfinding and Glaucoma: A Virtual Reality Experiment
2017
Investigative Ophthalmology and Visual Science
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Wayfinding experiments were modeled after the Morris water maze navigation task and conducted in an immersive VR environment. ...
The purpose of this study was to investigate the impact of glaucomatous visual field loss on wayfinding behavior using an immersive virtual reality (VR) environment. METHODS. ...
Visual acuity was measured using the Early Treatment Diabetic Retinopathy Study chart, and letter acuity was expressed as the logarithm of the minimum angle of resolution. ...
doi:10.1167/iovs.17-21849
pmid:28687845
pmcid:PMC5499646
fatcat:u3lpsop6ejcdrgyhygvnqe4lh4
Psychometric validation techniques applied to the IND-VFQ-33 visual function questionnaire: the Hyderabad ocular morbidity in the elderly study (HOMES)
2021
BMC Medical Research Methodology
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Background Over 2 billion people suffer from vision impairment or blindness globally, and access to validated visual measurement tools in imperative in accurately describing and managing the burden of ...
Next, an unrotated and oblique Promax rotated factor analysis, item response theory (IRT, using a graded response model (GRM)), and differential item functioning (DIF) testing were applied to the IND-VFQ ...
In 2012, Gothwal and colleagues fit Rasch models to each of these 3 domains. Based on lack of fit to the model, they recommended deleting the visual symptoms and psychosocial impact scales. ...
doi:10.1186/s12874-021-01217-w
pmid:33546603
fatcat:ircsl24kczco5hm4yuz7okvkhe
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