Dataset Information

Psychometric properties of a short version of Lee Fatigue Scale used as a generic PROM in persons with stroke or osteoarthritis: assessment using a Rasch analysis approach.

ABSTRACT: BACKGROUND:Fatigue is a common symptom associated with a wide range of diseases and needs to be more thoroughly studied. To minimise patient burden and to enhance response rates in research studies, patient-reported outcome measures (PROM) need to be as short as possible, without sacrificing reliability and validity. It is also important to have a generic measure that can be used for comparisons across different patient populations. Thus, the aim of this secondary analysis was to evaluate the psychometric properties of the Norwegian 5-item version of the Lee Fatigue Scale (LFS) in two distinct patient populations. METHODS:The sample was obtained from two different Norwegian studies and included patients 4-6?weeks after stroke (n =?322) and patients with osteoarthritis on a waiting list for total knee arthroplasty (n =?203). Fatigue severity was rated by five items from the Norwegian version of the LFS, rating each item on a numeric rating scale from 1 to 10. Rasch analysis was used to evaluate the psychometric properties of the 5-item scale across the two patient samples. RESULTS:Three of the five LFS items ("tired", "fatigued" and "worn out") showed acceptable internal scale validity as they met the set criterion for goodness-of-fit after removal of two items with unacceptable goodness-of-fit to the Rasch model. The 3-item LFS explained 81.6% of the variance, demonstrated acceptable unidimensionality, could separate the fatigue responses into three distinct severity groups and had no differential functioning with regard to disease group. The 3-item version of the LFS had a higher separation index and better internal consistency reliability than the 5-item version. CONCLUSIONS:A 3-item version of the LFS demonstrated acceptable psychometric properties in two distinct samples of patients, suggesting it may be useful as a brief generic measure of fatigue severity. TRIAL REGISTRATION:Clinicaltrials.gov: NCT02338869; registered 10/04/2014 (stroke study).

SUBMITTER: Bragstad LK

PROVIDER: S-EPMC7275526 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature

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Psychometric properties of a short version of Lee Fatigue Scale used as a generic PROM in persons with stroke or osteoarthritis: assessment using a Rasch analysis approach.

Bragstad Line Kildal LK Lerdal Anners A Gay Caryl L CL Kirkevold Marit M Lee Kathryn A KA Lindberg Maren Falch MF Skogestad Ingrid Johansen IJ Hjelle Ellen Gabrielsen EG Sveen Unni U Kottorp Anders A

Health and quality of life outcomes 20200605 1

<h4>Background</h4>Fatigue is a common symptom associated with a wide range of diseases and needs to be more thoroughly studied. To minimise patient burden and to enhance response rates in research studies, patient-reported outcome measures (PROM) need to be as short as possible, without sacrificing reliability and validity. It is also important to have a generic measure that can be used for comparisons across different patient populations. Thus, the aim of this secondary analysis was to evaluat ...[more]

PMID: 32503548

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Project description:BackgroundA previous qualitative assessment of the psychosocial consequences of labelling hypertension describes the diagnosis of hypertension as a labelling event with potential unintended negative long-term psychosocial consequences (labelling effects). Until now, the benefits of diagnosing hypertension have been far more reported than the harms. To obtain the net result of the preventive interventions for cardiovascular disease, such as diagnosing and treating mild hypertension, assessing benefits and harms in the most comprehensive way possible is necessary, including the psychosocial consequences of labelling. When measuring psychosocial consequences of labelling hypertension, a questionnaire with high content validity and adequate psychometric properties is needed.ObjectivesThe aim of this study was to describe the psychometric parameters of face and content-validated pool of items. Other objectives were also to screen the item pool by using Rasch model analysis and confirmatory factor analysis (CFA) for identifying such items with sufficient fit to the hypothesised models.MethodsWe surveyed the pool of items as a draft questionnaire to Brazilians recruited via social networks, sending e-mails, WhatsApp® messages and posting on Facebook®. The inclusion criteria were to be older than 18 years old, to be healthy and to have only hypertension. We used Rasch model analysis to screen the item pool, discarding items that did not fit the hypothesised domain. We searched for local dependence and differential item functioning. We used CFA to confirm the derived measurement models and complementarily assessed reliability using Cronbach's coefficient alpha.ResultsThe validation sample consisted of 798 respondents. All 798 respondents completed Part I, whereas 285 (35.7%)-those with hypertension-completed Part II. A condition-specific questionnaire with high content validity and adequate psychometric properties was developed for people labelled with hypertension. This measure is called 'Consequences of Labelling Hypertension Questionnaire' and covers the psychosocial consequences of labelling hypertension in two parts, encompassing a total of 71 items in 15 subscales and 11 single items.ConclusionWe developed a tool that can be used in future research involving hypertension, especially in scenarios of screening, prevention, population strategies and in intervention studies. Future use and testing of the questionnaire may still be required.

Project description:BACKGROUND: How to protect patients from harm is a question of universal interest. Measuring and improving safety culture in care giving units is an important strategy for promoting a safe environment for patients. The Safety Attitudes Questionnaire (SAQ) is the only instrument that measures safety culture in a way which correlates with patient outcome. We have translated the SAQ to Norwegian and validated the translated version. The psychometric properties of the translated questionnaire are presented in this article. METHODS: The questionnaire was translated with the back translation technique and tested in 47 clinical units in a Norwegian university hospital. SAQ's (the Generic version (Short Form 2006) the version with the two sets of questions on perceptions of management: on unit management and on hospital management) were distributed to 1911 frontline staff. 762 were distributed during unit meetings and 1149 through the postal system. Cronbach alphas, item-to-own correlations, and test-retest correlations were calculated, and response distribution analysis and confirmatory factor analysis were performed, as well as early validity tests. RESULTS: 1306 staff members completed and returned the questionnaire: a response rate of 68%. Questionnaire acceptability was good. The reliability measures were acceptable. The factor structure of the responses was tested by confirmatory factor analysis. 36 items were ascribed to seven underlying factors: Teamwork Climate, Safety Climate, Stress Recognition, Perceptions of Hospital Management, Perceptions of Unit Management, Working conditions, and Job satisfaction. Goodness-of-Fit Indices showed reasonable, but not indisputable, model fit. External validity indicators - recognizability of results, correlations with "trigger tool"-identified adverse events, with patient satisfaction with hospitalization, patient reports of possible maltreatment, and patient evaluation of organization of hospital work - provided preliminary validation. CONCLUSION: Based on the data from Akershus University Hospital, we conclude that the Norwegian translation of the SAQ showed satisfactory internal psychometric properties. With data from one hospital only, we cannot draw strong conclusions on its external validity. Further validation studies linking the SAQ-scores to patient outcome data should be performed.

Project description:INTRODUCTION:Colorectal cancer (CRC) is one of the most common cancer diagnoses among both sexes. Sweden has not yet implemented any CRC screening programme, but a study, Screening of Swedish Colons (SCREESCO), is ongoing. The movement within the health care sector towards a more participatory perspective has led to the increased importance of shared decision making (SDM), and this is suggestively applied when deciding upon screening participation. There is no Swedish questionnaire for assessing the level of SDM in relation to CRC screening. Therefore, the CRC screening module of the National Survey of Medical Decisions was translated and culturally adapted into a Swedish context: the SCREESCO questionnaire. AIM:The SCREESCO questionnaire requires further evaluation, and therefore, the aim, by using the Rasch approach, was to evaluate the psychometric properties of the SCREESCO questionnaire. METHODS:A Rasch partial credit model was chosen to investigate the psychometric properties. The sample consisted of individuals invited to the SCREESCO programme, who have answered the SCREESCO questionnaire. RESULTS:Rating scale structures indicated stability for the response structure used. Satisfactory evidence for validity of internal structure was also shown for the whole questionnaire and two of three concepts/subscales, after deletion of a few items. Validity in response processes indicated acceptable, or close to acceptable, findings, while the results for unidimensionality and differential item functioning (DIF) were somewhat mixed. Separation index revealed less satisfactory results, both for the whole questionnaire and the concepts/subscales. CONCLUSION:This Rasch analysis of the SCREESCO questionnaire revealed that the questionnaire in its current form has difficulties to assess the level of SDM in relation to CRC screening. The achieved results will guide further evaluation and development with the long-term goal of having a Swedish questionnaire, to be used in the health care sector, assessing the level of SDM in relation to CRC screening.

Dataset Information

Psychometric properties of a short version of Lee Fatigue Scale used as a generic PROM in persons with stroke or osteoarthritis: assessment using a Rasch analysis approach.

Publications

Psychometric properties of a short version of Lee Fatigue Scale used as a generic PROM in persons with stroke or osteoarthritis: assessment using a Rasch analysis approach.

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