TY - JOUR
T1 - Health-Related Quality of Life Assessment in Dermatology: Interpretation of Skindex-29 Scores Using Patient-Based Anchors
AU - Prinsen, Cecilia A. C.
AU - Lindeboom, Robert
AU - Sprangers, Mirjam A. G.
AU - Legierse, Catharina M.
AU - de Korte, John
PY - 2010
Y1 - 2010
N2 - In dermatology, the clinical use of health-related quality of life (HRQL) scores is impeded by lack of empirically and clinically based interpretation of these scores. We aimed to facilitate the interpretation of Skindex-29 domain and overall scores by identifying clinically meaningful cut-off scores, using patient-based anchors. Consecutively included dermatology outpatients completed the Skindex-29 and four sets of anchor-based questions, such as questions on the impact of skin disease on HRQL, on global disease severity, and on psychiatric morbidity. Pearson's correlations and receiver operating characteristic analysis were used to identify the optimal Skindex-29 cut-off scores corresponding to severely impaired HRQL. A total of 339/434 patients completed the questionnaires (response rate 78%), of which 322 could be used for data analysis. Cut-off scores associated with the patient-based anchors on the impact of skin disease on HRQL showed the highest accuracy (area under the curve ranged from 0.83 to 0.91). The corresponding Skindex-29 cut-off scores for severely impaired HRQL were as follows: >= 52 points on symptoms, >= 39 on emotions, >= 37 on functioning, and >= 44 on the overall score. The estimated cut-off scores can be used in clinical practice to identify patients with (very) severely impaired HRQL
AB - In dermatology, the clinical use of health-related quality of life (HRQL) scores is impeded by lack of empirically and clinically based interpretation of these scores. We aimed to facilitate the interpretation of Skindex-29 domain and overall scores by identifying clinically meaningful cut-off scores, using patient-based anchors. Consecutively included dermatology outpatients completed the Skindex-29 and four sets of anchor-based questions, such as questions on the impact of skin disease on HRQL, on global disease severity, and on psychiatric morbidity. Pearson's correlations and receiver operating characteristic analysis were used to identify the optimal Skindex-29 cut-off scores corresponding to severely impaired HRQL. A total of 339/434 patients completed the questionnaires (response rate 78%), of which 322 could be used for data analysis. Cut-off scores associated with the patient-based anchors on the impact of skin disease on HRQL showed the highest accuracy (area under the curve ranged from 0.83 to 0.91). The corresponding Skindex-29 cut-off scores for severely impaired HRQL were as follows: >= 52 points on symptoms, >= 39 on emotions, >= 37 on functioning, and >= 44 on the overall score. The estimated cut-off scores can be used in clinical practice to identify patients with (very) severely impaired HRQL
U2 - https://doi.org/10.1038/jid.2009.404
DO - https://doi.org/10.1038/jid.2009.404
M3 - Article
C2 - 20032989
SN - 0022-202X
VL - 130
SP - 1318
EP - 1322
JO - Journal of Investigative Dermatology
JF - Journal of Investigative Dermatology
IS - 5
ER -