| 41. |
- Hagell, Peter, 1966-, et al.
(författare)
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Manual for translation and cultural adaptation of the Minimal Eating Observation and Nutrition Form – Version II (MEONF-II)
- 2015
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- This report describes the procedure for translation and culturaladaptation of the Minimal Eating Observation and Nutrition Form –Version II (MEONF-II) from Swedish or U.K. English for use in otherlanguages and countries, including adaptations from Swedish andU.K. English to other Swedish (e.g., Finland) and English speakingregions (e.g., United States, Canada, Australia), respectively. Theprescribed methodology is based on the dual-panel approach forpatient-reported rating scales, but modified for clinical assessmenttools used by health care professionals. The approach emphasises theimportance of achieving conceptual rather than linguistic equivalence,as well as ease and immediacy of the translation. The procedurecomprises three main steps: (1) A panel of 3-7 bilingual health careprofessionals work together to produce a first draft target languageversion; (2) Review the first draft target language version by a secondpanel of 3-7 monolingual nurses and/or final year student nursesnative in the target language; (3) Clinical field-testing of the newtarget language version by 15-30 hospital ward nurses/final yearstudent nurses using the MEONF-II with at least five patients each toevaluate its user-friendliness and appropriateness. Following a writtenreport including all major discussions and difficulties experienced bythe panels and during field-testing, there is a need for evidence of theequivalence of the translated MEONF-II relative to the originalversion, before it can be recommended for general implementationinto clinical practice. This final step is not covered in any detail here,but only outlined in summary. The procedures described here providean easy to follow step-by-step practically oriented manual to facilitatethe production of high quality translations and adaptations of theMEONF-II into new linguistic and cultural settings. This will ease theprocess for nurses and others who are interested in implementing theMEONF-II as a means of improving nutritional care for hospitalinpatients.
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| 42. |
- Hagell, Peter, et al.
(författare)
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Measurement properties of the SF-12 Health Survey in Parkinson's disease
- 2011
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Ingår i: Journal of Parkinson's Disease. - : IOS Press. - 1877-7171 .- 1877-718X. ; 1:2, s. 185-196
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Tidskriftsartikel (refereegranskat)abstract
- The 12-item Short-Form Health Survey (SF-12) is an abbreviated version of the SF-36, one of the most widely used patient-reported health outcome rating scales. Similar to the SF-36, it yields summary scores of physical and mental health (PCS and MCS, respectively). However, SF-36 derived PCS and MCS scores have not been found valid in neurological disorders such as Parkinson's disease (PD). Here we used modern psychometric methodology (Rasch analysis) to test the SF-12 in PD, and explored the appropriateness of a total SF-12 score representing overall health. SF-12 data from 150 non-demented people with PD (56% men; mean age/PD-duration, 70/5 years) were analyzed regarding Rasch model fit for the PCS, MCS, as well as for the full SF-12. Data showed some signs of misfit to the Rasch model for all three scales (overall item-trait interaction, P ≥ 0.003; reliability, ≥ 0.85). For example, all scales exhibited signs of dependency between item responses, and the PCS measured with relatively low precision. Model fit (but not measurement precision) was improved following deletion of one PCS and one MCS item (overall item-trait interaction, P ≥ 0.387; reliability, ≥ 0.82). These observations suggest that the SF-12 can be used as a coarse health survey tool in PD and that a total SF-12 may be useful as a measure of overall health. However, its appropriateness as an outcome measure can be questioned and it is somewhat unclear exactly what the derived scores represent. As such, the SF-12 should probably be considered an assessment tool (or index) rather than a measurement instrument.
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| 43. |
- Hagell, Peter, 1966-, et al.
(författare)
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Sample size and statistical conclusions from tests of fit to the Rasch measurement model according to the RUMM2030 program
- 2015
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Konferensbidrag (refereegranskat)abstract
- Sample size is a major contributor to statistical null hypothesis testing, which is the basis for many approaches to testing Rasch model fit. To allow for taking this into account, the RUMM2030 Rasch analysis software has the ability to adjust n in the calculation of its chi-2 based fit statistics. This paper examines the effects of such post-hoc adjustments on the statistical conclusions, and explores the occurrence of type I errors with Rasch model fit statistics implemented in RUMM2030. Data simulations of Rasch model fitting 25-item dichotomous scales with sample sizes ranging from n=50-2500 were generated an analysed regarding fit with and without adjusted sample sizes corresponding to the same n values as those simulated. Results suggest that post-hoc downward sample size adjustment is a useful procedure to avoid type I errors when working with relatively large data sets (n≥500). The value of upward adjustment with small data sets is less clear, particularly regarding the total item-trait chi-2 test, which tends to falsely signal misfit. Under the assumption of Rasch model fit, our observations suggest that a sample size around 250 (up to about 500) provides a good balance for the statistical interpretation of RUMM2030 fit statistics.
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| 44. |
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| 45. |
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| 46. |
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| 47. |
- Jakobsson, Ulf, et al.
(författare)
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Construct validity of the SF-12 in three different samples
- 2012
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Ingår i: Journal of Evaluation In Clinical Practice. - : Wiley-Blackwell. - 1356-1294 .- 1365-2753. ; 18:3, s. 560-566
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Tidskriftsartikel (refereegranskat)abstract
- Rationale, aims and objectives Studies have challenged the validity and underlying measurement model of the physical and mental component summary scores of the 36-item Short-Form Health Survey in, for example the elderly and people with neurological disorders. However, it is unclear to what extent these observations translate to physical and mental component summary scores derived from the 12-item short form (SF-12) of the 36-item Short-Form Health Survey. This study evaluated the construct validity of the SF-12 in elderly people and people with Parkinson's disease (PD) and stroke.Methods SF-12 data from a general elderly (aged 75+) population (n = 4278), people with PD (n = 159) and stroke survivors (n = 89) were analysed regarding data quality, reliability (coefficient alpha) and internal construct validity. The latter was assessed through item-total correlations, exploratory and confirmatory factor analyses.Results Completeness of data was high (93–98.8%) and reliability was acceptable (0.78–0.85). Item-total correlations argued against the suggested items-to-summary scores structure in all three samples. Exploratory factor analyses failed to support a two-dimensional item structure among elderly and stroke survivors, and cross-loadings of items were seen in all three samples. Confirmatory factor analyses showed lack of fit between empirical data and the proposed items-to-summary measures structure in all samples.Conclusions These observations challenge the validity and interpretability of SF-12 scores among the elderly, people with PD and stroke survivors. The standard orthogonally weighted SF-12 scoring algorithm is cautioned against. Instead, when the assumed two-dimensional structure is supported in the data, oblique scoring algorithms appear preferable. Failure to consider basic scoring assumptions may yield misleading results.
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| 48. |
- Jakobsson, Ulf, et al.
(författare)
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Enkätmetodik – en svår konst [Construction of questionnaires – a difficult task]
- 2005
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Ingår i: Vård i Norden. ; 25:3, s. 72-73
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Tidskriftsartikel (refereegranskat)abstract
- Construction of questionnaires isnot as easy as it first may seem.There are several issues to consi-der. This to avoid problems laterin the analysis of the results. Thisarticle aim at presenting a selec-tion of possible methodology pro-blems related to the constructionand use of questionnaires.
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| 49. |
- Jakobsson, Ulf, et al.
(författare)
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Exploring determinants for quality of life among older people in pain and in need of help for daily living
- 2007
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Ingår i: Journal of Clinical Nursing. - : Wiley-Blackwell. - 0962-1067 .- 1365-2702. ; 16:3a, s. 95-104
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Tidskriftsartikel (refereegranskat)abstract
- Aims and objectives. The aim of the study was to investigate the quality of life and related factors among older people who are in pain and in need of help to manage daily living. Background. To intervene against the low quality of life in nursing care knowledge about factors affecting it is needed and this is especially important for vulnerable people such as those who suffer from pain and who are in need of help to manage daily living. Methods. Five hundred and twenty-six people, aged 75–102 years participated in this study. Results. Those in pain reported a significantly higher degree of all complaints and lower quality of life in all measures compared with those not in pain. Overall quality of life was associated with mobility problems, sleeping problems and depressed mood, while health-related quality of life was associated with living in special accommodations, walking problems, mobility problems and fatigue. Conclusions. Those in need of help to manage daily living and in pain seem to be at higher risk of lowered quality of life than those not in pain and the lower quality of life among those in pain is probably caused by the complex of complaints rather than pain per se. Relevance to clinical practice. Daily nursing care should identify and treat the complex of complaints related to pain as well as pain itself, to improve everyday life and quality of life for older people in pain.
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| 50. |
- Jakobsson, Ulf, et al.
(författare)
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Statistical methods for assessing agreement for ordinal data
- 2005
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Ingår i: Scandinavian Journal of Caring Sciences. - : Wiley-Blackwell. - 0283-9318 .- 1471-6712. ; 19:4, s. 427-431
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Tidskriftsartikel (refereegranskat)abstract
- Evaluation of various methods in clinical practice is often based on interpretations by two or more observers. Such data need to be analysed with correct statistics, or the results and conclusions may be misleading. In this study, the use of measures of agreement for ordinal data in five international nursing journals is reviewed and various methods for measuring agreement are presented and discussed. Analyses of agreement did not seem to be very common in nursing research, but a great variation was found regarding the choice of method for analysing agreement. Both acceptable and unacceptable methods were found in the articles reviewed. When choosing among various methods for agreement the weighted κ-coefficient is probably the most useful for ordinal data, but several issues of concern arise and need to be taken into consideration when using these types of analyses.
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