Age-stratified validation of the functional assessment of chronic illness therapy-spiritual well-being based on a large cohort of Danish cancer survivors.

Autor: Kørup AK; Research Unit of General Practice, Institute of Public Health, University of Southern Denmark (SDU), Odense, Denmark.; Department of Mental Health Kolding-Vejle, Region of Southern Denmark, Vejle, Denmark., Wehberg S; Research Unit of General Practice, Institute of Public Health, University of Southern Denmark (SDU), Odense, Denmark., Hvidt EA; Research Unit of General Practice, Institute of Public Health, University of Southern Denmark (SDU), Odense, Denmark.; Department for the Study of Culture, University of Southern Denmark (SDU), Odense, Denmark., Hvidt NC; Research Unit of General Practice, Institute of Public Health, University of Southern Denmark (SDU), Odense, Denmark.; Academy of Geriatric Cancer Research (AgeCare), Odense University Hospital, Odense, Denmark., Fitchett G; Department of Religion Health and Human Values, College of Health Sciences, Rush University, Chicago, Illinois, USA., Hansen DG; Research Unit of General Practice, Institute of Public Health, University of Southern Denmark (SDU), Odense, Denmark.
Jazyk: angličtina
Zdroj: Psycho-oncology [Psychooncology] 2020 Jul; Vol. 29 (7), pp. 1217-1223. Date of Electronic Publication: 2020 Jun 16.
DOI: 10.1002/pon.5412
Abstrakt: Objective: Previous research indicates that the FACIT-Sp instrument is susceptible to bias when measuring spiritual well-being in older patients. Our first focus was to evaluate the two-factor vs the three-factor model of the FACIT-Sp and our second focus was to explore how these models behave for different age groups.
Methods: We used a large national cohort of Danish cancer patients (N = 3439) which included a significant number of patients aged at least 70 years (N = 1033). Item-test correlations and factor analyses were conducted on complete cases (N = 2820). Additionally, a reliability analysis was performed using Cronbach's alpha and Guttman's lower-bound estimate.
Results: Factor analysis revealed a loading pattern for the oldest age group (70+) showing items on peace and meaning loading into a single factor, as originally proposed in the two-factor model. The loading estimates for the patients younger than 70 matched the three-factor model. Furthermore, item-test correlations changed as age increased. Based on Cronbach's alpha and Guttman's estimate of .83 and .89, respectively, total scores proved reliable. Items 4, 8, and 12 are discussed separately concerning their problematic influence on instrument validity in their current formulation.
Conclusion: Overall, the three-factor model had a good fit; however, for the eldest patients a two-factor solution proved even better. Interpretation of FACIT-Sp subscale scores of older cancer patients must therefore be done with caution.
(© 2020 John Wiley & Sons, Ltd.)
Databáze: MEDLINE
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