Validation of living with chronic illness scale in a type 2 diabetes mellitus population
Validation of living with chronic illness scale in a type 2 diabetes mellitus population
Background: Worldwide, type 2 diabetes mellitus (T2DM) is one of the most prevalent chronic diseases and one of those producing greatest impact on patients’ day-to-day quality of life. Our study aim is to validate the “Living with Chronic Illness Scale” for a Spanish-speaking T2DM population. Methods: In this observational, international, cross-sectional study, 582 persons with T2DM were recruited in primary care and outpatient hospital consultations, in Spain and Colombia, during the period from May 2018 to June 2019. The properties analysed were feasibility/acceptability, internal consistency, reliability, precision and (structural) content-construct validity including confirmatory factor analysis. The COSMIN checklist was used to assess the methodological/psychometric quality of the instrument. Results: The scale had an adequate internal consistency and test retest reliability (Cronbach’s alpha = 0.90; intraclass correlation coefficient = 0.96, respectively). In addition, the instrument is precise (standard error of measurement = 3.34, with values < ½SD = 8.52) and correlates positively with social support (DUFSS) (r
s = 0.56), quality of life (WHOQOL-BREF) (r
s = 0.51–0.30) and ssatisfaction with life (SLS-6) (r
s = 0.50–0.38). The original 26-items version of the scale did not support totally the confirmatory factor analysis. The COSMIN checklist is favourable for all the properties analysed, although weaknesses are detected for structural validity. Conclusions: The LW-CI-T2DM is a valid, reliable and accurate instrument for use in clinical practice to determine how a person’s life is affected by the presence of diabetes. This instrument correlates well with the associated constructs of social support, quality of life and satisfaction. Additional research is needed to determine how well the questionnaire structure performs when robust factor analysis methods are applied.
COSMIN, Chronic illness, Long-term condition, Study validation, Type 2 diabetes mellitus
Caro-bautista, Jorge
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Rodríguez-blázquez, Carmen
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Perez-manchon, David
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Timonet-andreu, Eva
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Carvajal-carrascal, Gloria
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Fuentes-ramírez, Alejandra
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Corchon, Silvia
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Aranda-gallardo, Marta
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Ambrosio, Leire
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Caro-bautista, Jorge
6d7e7d06-446d-4c86-8692-e95b66a5a972
Rodríguez-blázquez, Carmen
3bb0d8ce-90cd-4b90-b4e4-a5cd82e711ec
Perez-manchon, David
c23d4d5a-4444-45b9-851e-2b191d0aa032
Timonet-andreu, Eva
2a22cb3f-f193-4396-b4de-79f607027b9d
Carvajal-carrascal, Gloria
45337594-5dc3-4379-8e5d-0e51a5ca2c2a
Fuentes-ramírez, Alejandra
99d18724-543d-4834-a51a-c65c4751382a
Corchon, Silvia
7459e7d3-f033-4aeb-a16b-6d45a5cfad7c
Aranda-gallardo, Marta
e61f9934-6ab0-4c6b-ad62-3699745d3ea0
Ambrosio, Leire
0a21749c-3817-49de-bf15-0ea9233ecc5c
Caro-bautista, Jorge, Rodríguez-blázquez, Carmen, Perez-manchon, David, Timonet-andreu, Eva, Carvajal-carrascal, Gloria, Fuentes-ramírez, Alejandra, Corchon, Silvia, Aranda-gallardo, Marta and Ambrosio, Leire
(2021)
Validation of living with chronic illness scale in a type 2 diabetes mellitus population.
Health and Quality of Life Outcomes, 19 (1), [93].
(doi:10.1186/s12955-021-01715-x).
Abstract
Background: Worldwide, type 2 diabetes mellitus (T2DM) is one of the most prevalent chronic diseases and one of those producing greatest impact on patients’ day-to-day quality of life. Our study aim is to validate the “Living with Chronic Illness Scale” for a Spanish-speaking T2DM population. Methods: In this observational, international, cross-sectional study, 582 persons with T2DM were recruited in primary care and outpatient hospital consultations, in Spain and Colombia, during the period from May 2018 to June 2019. The properties analysed were feasibility/acceptability, internal consistency, reliability, precision and (structural) content-construct validity including confirmatory factor analysis. The COSMIN checklist was used to assess the methodological/psychometric quality of the instrument. Results: The scale had an adequate internal consistency and test retest reliability (Cronbach’s alpha = 0.90; intraclass correlation coefficient = 0.96, respectively). In addition, the instrument is precise (standard error of measurement = 3.34, with values < ½SD = 8.52) and correlates positively with social support (DUFSS) (r
s = 0.56), quality of life (WHOQOL-BREF) (r
s = 0.51–0.30) and ssatisfaction with life (SLS-6) (r
s = 0.50–0.38). The original 26-items version of the scale did not support totally the confirmatory factor analysis. The COSMIN checklist is favourable for all the properties analysed, although weaknesses are detected for structural validity. Conclusions: The LW-CI-T2DM is a valid, reliable and accurate instrument for use in clinical practice to determine how a person’s life is affected by the presence of diabetes. This instrument correlates well with the associated constructs of social support, quality of life and satisfaction. Additional research is needed to determine how well the questionnaire structure performs when robust factor analysis methods are applied.
Text
Validation of Living with Chronic Illness Scale in a Type 2 Diabetes Mellitus population
- Accepted Manuscript
More information
Accepted/In Press date: 23 February 2021
e-pub ahead of print date: 17 March 2021
Keywords:
COSMIN, Chronic illness, Long-term condition, Study validation, Type 2 diabetes mellitus
Identifiers
Local EPrints ID: 448472
URI: http://eprints.soton.ac.uk/id/eprint/448472
ISSN: 1477-7525
PURE UUID: f24333c7-eccc-4c42-85c2-0ba647044ab6
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Date deposited: 22 Apr 2021 16:48
Last modified: 03 Sep 2024 02:04
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Contributors
Author:
Jorge Caro-bautista
Author:
Carmen Rodríguez-blázquez
Author:
David Perez-manchon
Author:
Eva Timonet-andreu
Author:
Gloria Carvajal-carrascal
Author:
Alejandra Fuentes-ramírez
Author:
Silvia Corchon
Author:
Marta Aranda-gallardo
Author:
Leire Ambrosio
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