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Development and initial testing of the self-care of chronic illness inventory
Univ Penn, PA 19104 USA.
Sapienza Univ Rome, Italy.
Univ Massachusetts Dartmouth, MA USA.
Univ Penn, PA 19104 USA.
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2018 (English)In: Journal of Advanced Nursing, ISSN 0309-2402, E-ISSN 1365-2648, Vol. 74, no 10, p. 2465-2476Article in journal (Refereed) Published
Abstract [en]

Aim: The aim was to develop and psychometrically test the self-care of chronic illness Inventory, a generic measure of self-care. Background: Existing measures of self-care are disease-specific or behaviour-specific; no generic measure of self-care exists. Design: Cross-sectional survey. Methods: We developed a 20-item self-report instrument based on the Middle Range Theory of Self-Care of Chronic Illness, with three separate scales measuring Self-Care Maintenance, Self-Care Monitoring, and Self-Care Management. Each of the three scales is scored separately and standardized 0-100 with higher scores indicating better self-care. After demonstrating content validity, psychometric testing was conducted in a convenience sample of 407 adults (enrolled from inpatient and outpatient settings at five sites in the United States and ResearchMatch.org). Dimensionality testing with confirmatory factor analysis preceded reliability testing. Results: The Self-Care Maintenance scale (eight items, two dimensions: illnessrelated and health-promoting behaviour) fit well when tested with a two-factor confirmatory model. The Self-Care Monitoring scale (five items, single factor) fitted well. The Self-Care Management scale (seven items, two factors: autonomous and consulting behaviour), when tested with a two-factor confirmatory model, fitted adequately. A simultaneous confirmatory factor analysis on the combined set of items supported the more general model. Conclusion: The self-care of chronic illness inventory is adequate in reliability and validity. We suggest further testing in diverse populations of patients with chronic illnesses.

Place, publisher, year, edition, pages
WILEY , 2018. Vol. 74, no 10, p. 2465-2476
Keywords [en]
chronic illness; comorbidity; factor analysis; instrument development; multimorbidity; nursing theory; psychometrics; self-care; validity
National Category
Nursing
Identifiers
URN: urn:nbn:se:liu:diva-152830DOI: 10.1111/jan.13775ISI: 000449085600023PubMedID: 29943401OAI: oai:DiVA.org:liu-152830DiVA, id: diva2:1265223
Available from: 2018-11-22 Created: 2018-11-22 Last updated: 2019-06-27

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Strömberg, Anna

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Faculty of Medicine and Health SciencesDepartment of Cardiology in LinköpingDivision of Nursing ScienceDivision of Nursing Science
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