Quality of Life of Acne Patients / 대한피부과학회지

BACKGROUND: Although acne is extremely prevalent, few studies have focused on what the patient with acne vulgaris experiences. Furthermore, despite recent advances in the accurate measurement of health outcomes, few studies have discussed the influence of acne on discrete aspects of patients' experiences such as their quality of life. OBJECT: To determine the influence of acne vulgaris on the quality of life of adult dermatology outpatients, we performed cross-sectional and longitudinal questionnaire study. METHOD: Sixty patients with acne vulgaris attending appointments with their dermatologists. Findings using Skindex, a validated 29-item instrument to measure the effects of skin disease on patients' quality of life. Results are reported as 3 scale scores (functioning, emotions, and symptoms) and a composite score (average scale score). In addition, dermatologists rated the clinical severity of patients' skin disease. Higher Skindex scores indicate greater effects on quality of life. RESULTS: Patients with acne experienced functioning and emotional effects from their skin disease comparable with those of patients with psoriasis, but experienced fewer symptoms (for patients with acne and psoriasis, respectively, Skindex functioning scores of 14.9 and 22.8 [p=0.08]; emotion scores, 39.2 and 38.9 [p=0.95]; and symptoms scores, 29.5 and 42.1 [p<0.05]). Skindex scores were higher in older patients than in younger patients, and patients aged 40 years or older were less likely to report improvement in their acne after 3 months (43% vs 85%; p<0.05). Among patients reporting no improvement in their acne, older patients reported greater effects of their acne on their quality of life. Furthermore, in multivariate analyses, older adults reported more effects of acne on their quality of life than younger adults, even after controlling for sex and acne severity as judged by the dermatologist. CONCLUSIONS: Acne vulgaris significantly affects patients' quality of life. Sex, age, severity of acne and duration of acne can effect on quality of life of acne patients.

The Korean Version of Skindex-29 / 대한피부과학회지

BACKGROUND: Most available dermatologic quality-of-life measures were written in English. So these must be translated for use in Korea. Our purpose was to translate and adapt culturally into Korean a skin-related quality-of-life measure Skindex-29, and to begin preliminary assessments of its reliability and validity. METHODS: Cross-cultural adaptation questionnaire studies were performed. Two hundred and sixty adult outpatients and healthy people responded to the Korean version of Skindex-29. Evaluations of the semantic equivalence of back-translated items, reliability, construct validity, and content validity of the Korean version were the main outcome measures. Comparison between the Korean version and other versions of Skindex-29 (Spanish and American) responses was also performed. RESULTS: Five problematic items required a second translation and back-translation to achieve satisfactory agreement with the original instrument. The final Korean version of Skindex-29 was internally reliable. The instrument demonstrated both construct and content validity. As hypothesized, scores for dermatologic patients were higher than those of healthy persons and scores for patients with inflammatory diseases were higher than those of persons with isolated skin lesions. Skindex scale scores of the Korean version and other versions of Skindex-29 were similar. CONCLUSIONS: We have developed a semantically equivalent translation of Skindex-29 in Korean. Our preliminary evaluation of its measurement properties suggests that it is a reliable and valid measure of the effects of skin disease on the quality of life in Korean patients.