Scalpdex: a quality-of-life instrument for scalp dermatitis.

Journal Article (Journal Article)

OBJECTIVE: To develop a scalp dermatitis-specific quality-of-life instrument. METHODS: Based on the results of directed focus sessions with 8 patients with scalp psoriasis or seborrheic dermatitis, we conceptualized 3 major constructs that explain the way scalp dermatoses affect patient quality of life: symptoms, functioning, and emotions. We constructed a 23-item instrument, Scalpdex, and tested its reliability, responsiveness, and validity. RESULTS: Fifty-two dermatology patients completed the study. We demonstrated construct validity by confirming that the factors derived by principal axes factor analyses with orthogonal rotation correlated to our hypothesized scales (r = 0.76-0.84) and that differences in symptom, functioning, and emotion scores differed among the varying levels of self-reported scalp severity more than would be expected by chance (P<.05 by analysis of variance). The instrument demonstrated reliability with internal consistency (Cronbach alpha, 0.62-0.80) and reproducibility (intraclass correlation coefficient, 0.90-0.97). The quality-of-life scores changed in the expected direction in our test for responsiveness (P

Full Text

Duke Authors

Cited Authors

  • Chen, SC; Yeung, J; Chren, M-M

Published Date

  • June 2002

Published In

Volume / Issue

  • 138 / 6

Start / End Page

  • 803 - 807

PubMed ID

  • 12056963

International Standard Serial Number (ISSN)

  • 0003-987X

Digital Object Identifier (DOI)

  • 10.1001/archderm.138.6.803


  • eng

Conference Location

  • United States