The CU-Q(2)oL Brazilian portuguese version was easily filled out, well accepted by the patients, demonstrated an acceptable validity and reliability and might be used to evaluate treatment outcomes and in clinical research.
BACKGROUNDatopic dermatitis is directly related to psychological stress, reduced quality of
life and psychosomatic symptoms. The Psychosomatic Scale for Atopic Dermatitis is
the only questionnaire developed specifically for assessment of psychosomatization
in atopic dermatitis. OBJECTIVESthe objective of this study was to cross-culturally adapt and validate a
Brazilian-Portuguese version of the Psychosomatic Scale for Atopic Dermatitis.
METHODSadaptation consisted of independent translation and backtranslation by three
bilingual translators, followed by a pre-test. The Psychosomatic Scale for Atopic
Dermatitis and the Dermatology Life Quality Index were self-administered to 47
patients with atopic dermatitis. Disease severity was evaluated using the Eczema
Area and Severity Index. Factor analysis was used to identify the dimensions of
the Brazilian Portuguese version of the Psychosomatic Scale for Atopic Dermatitis.
Internal consistency and convergence validity were also analyzed. Reproducibility
was assessed using the Kappa coefficient. RESULTSfactor analysis revealed a two-dimensional structure: stress/laziness/insecurity
(I) and maladjustment/social relationships (II), explaining 54.4% of total
variance. All dimensions revealed excellent internal consistency. External
construct validity was confirmed by positive correlations between the
Psychosomatic Scale for Atopic Dermatitis and the Dermatology Life Quality Index.
Test-retest reliability was excellent, with k>0.7 for all questions. CONCLUSIONSthe Brazilian Portuguese version of the Psychosomatic Scale for Atopic Dermatitis
demonstrated acceptable psychometric properties and can be used for the evaluation
of psychosomatic symptoms in patients with atopic dermatitis and as a tool in
clinical and epidemiological research.
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