The Dutch language version of the Pain Disability Index (PDI-DLV): psychometric properties in breast cancer patients.
Pain-related disability
breast cancer
pain disability index
reliability
validity
Journal
Physiotherapy theory and practice
ISSN: 1532-5040
Titre abrégé: Physiother Theory Pract
Pays: England
ID NLM: 9015520
Informations de publication
Date de publication:
02 Sep 2023
02 Sep 2023
Historique:
medline:
4
8
2023
pubmed:
5
4
2022
entrez:
4
4
2022
Statut:
ppublish
Résumé
Pain after breast cancer surgery is a common and disabling problem. A reliable and valid questionnaire to assess pain-related disability is the Pain Disability Index (0-70). However, properties of the Dutch version (PDI-DLV) have never been investigated in this population. To assess psychometric properties of the PDI-DLV after breast cancer surgery. For reliability, relative and absolute reliability were calculated with a one-week test-retest interval, as well as internal consistency. Moreover, content and construct validity were examined to evaluate validity. One hundred twenty-three women were included. Relative reliability was good (intraclass correlation coefficient = 0.80). Standard error of measurement and minimal detectable change (absolute reliability) were 5.57 and 15.45 points, respectively. The mean difference between two measurements was -1.98 points, with 95% limits of agreement equal to 13.19 and -17.15. The within-subjects coefficient of variation was 59%. Internal consistency was confirmed (α = 0.87). The PDI-DLV was scored as understandable and complete (content validity). Construct validity was supported by confirmation of more than 75% of the tested hypotheses and of the one-factor model. The PDI-DLV is a valid questionnaire to assess pain-related disability 1 year after breast cancer surgery. Although absolute reliability is disputable, its good relative reliability allows evaluating changes between subjects.
Sections du résumé
BACKGROUND
UNASSIGNED
Pain after breast cancer surgery is a common and disabling problem. A reliable and valid questionnaire to assess pain-related disability is the Pain Disability Index (0-70). However, properties of the Dutch version (PDI-DLV) have never been investigated in this population.
OBJECTIVE
UNASSIGNED
To assess psychometric properties of the PDI-DLV after breast cancer surgery.
METHODS
UNASSIGNED
For reliability, relative and absolute reliability were calculated with a one-week test-retest interval, as well as internal consistency. Moreover, content and construct validity were examined to evaluate validity.
RESULTS
UNASSIGNED
One hundred twenty-three women were included. Relative reliability was good (intraclass correlation coefficient = 0.80). Standard error of measurement and minimal detectable change (absolute reliability) were 5.57 and 15.45 points, respectively. The mean difference between two measurements was -1.98 points, with 95% limits of agreement equal to 13.19 and -17.15. The within-subjects coefficient of variation was 59%. Internal consistency was confirmed (α = 0.87). The PDI-DLV was scored as understandable and complete (content validity). Construct validity was supported by confirmation of more than 75% of the tested hypotheses and of the one-factor model.
CONCLUSION
UNASSIGNED
The PDI-DLV is a valid questionnaire to assess pain-related disability 1 year after breast cancer surgery. Although absolute reliability is disputable, its good relative reliability allows evaluating changes between subjects.
Identifiants
pubmed: 35378054
doi: 10.1080/09593985.2022.2059036
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM