TY - JOUR
T1 - Japanese version of the Dermatology Life Quality Index
T2 - Validity and reliability in patients with acne
AU - Takahashi, Natsuko
AU - Suzukamo, Yoshimi
AU - Nakamura, Motonobu
AU - Miyachi, Yoshiki
AU - Green, Joseph
AU - Ohya, Yukihiro
AU - Finlay, Andrew Y.
AU - Fukuhara, Shunichi
AU - Matsuyoshi, Norihisa
AU - Toda, Ken Ichi
AU - Takeda, Atsuko
AU - Matsui, Miho
AU - Kondo, Setsuko
AU - Kobayashi, Setsu
AU - Kitajima, Toshiyuki
AU - Hattori, Yukari
PY - 2006/8/3
Y1 - 2006/8/3
N2 - Background: Patient-reported quality of life is strongly affected by some dermatologic conditions. We developed a Japanese version of the Dermatology Life Quality Index (DLQI-J) and used psychometric methods to examine its validity and reliability. Methods: The Japanese version of the DLQI was created from the original (English) version, using a standard method. The DLQI-J was then completed by 197 people, to examine its validity and reliability. Some participants completed the DLQI-J a second time, 3 days later, to examine the reproducibility of their responses. In addition to the DLQI-J, the participants completed parts of the SF-36 and gave data on their demographic and clinical characteristics. Their physicians provided information on the location and clinical severity of the skin disease. Results: The participants reported no difficulties in answering the DLQI-J items. Their mean age was 24.8 years, 77.2% were female, and 78.7% had acne vulgaris. The mean score of DLQI was 3.99(SD: 3.99). The responses were found to be reproducible and stable. Results of principal-component and factor analysis suggested that this scale measured one construct. The correlations of DLQI-J scores with sex or age were very poor, but those with SF-36 scores and with clinical severity were high. Conclusion: The DLQI-J provides valid and reliable data despite having only a small number of items.
AB - Background: Patient-reported quality of life is strongly affected by some dermatologic conditions. We developed a Japanese version of the Dermatology Life Quality Index (DLQI-J) and used psychometric methods to examine its validity and reliability. Methods: The Japanese version of the DLQI was created from the original (English) version, using a standard method. The DLQI-J was then completed by 197 people, to examine its validity and reliability. Some participants completed the DLQI-J a second time, 3 days later, to examine the reproducibility of their responses. In addition to the DLQI-J, the participants completed parts of the SF-36 and gave data on their demographic and clinical characteristics. Their physicians provided information on the location and clinical severity of the skin disease. Results: The participants reported no difficulties in answering the DLQI-J items. Their mean age was 24.8 years, 77.2% were female, and 78.7% had acne vulgaris. The mean score of DLQI was 3.99(SD: 3.99). The responses were found to be reproducible and stable. Results of principal-component and factor analysis suggested that this scale measured one construct. The correlations of DLQI-J scores with sex or age were very poor, but those with SF-36 scores and with clinical severity were high. Conclusion: The DLQI-J provides valid and reliable data despite having only a small number of items.
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U2 - 10.1186/1477-7525-4-46
DO - 10.1186/1477-7525-4-46
M3 - Article
C2 - 16884543
AN - SCOPUS:33748622792
VL - 4
JO - Health and Quality of Life Outcomes
JF - Health and Quality of Life Outcomes
SN - 1477-7525
M1 - 46
ER -
