Ros A M, Eklund G
Department of Dermatology, Karolinska Hospital, Stockholm, Sweden.
J Am Acad Dermatol. 1987 Nov;17(5 Pt 1):752-8. doi: 10.1016/s0190-9622(87)70258-8.
In this study of photosensitivity among psoriasis patients, a questionnaire was mailed to 2000 psoriasis patients living within the service area of Karolinska Hospital, Stockholm. Of the 88% patients who replied, 4.4% stated that their psoriasis always worsened after sun exposure, and 7.3% stated that this was sometimes so. After telephone interviews with an 80% sample of these allegedly photosensitive patients, half of them were considered nonphotosensitive. Thus an estimated prevalence of 5.5% photosensitivity was obtained. Forty-three percent of the light-sensitive patients had a history of polymorphous light eruption with secondary exacerbation of psoriasis lesions. Comparison between the photosensitive and the nonphotosensitive patients concerning background factors and symptoms showed a statistically significant increase (p less than or equal to 0.001) in the photosensitive group concerning skin type I, psoriasis affecting hands, heredity for photosensitivity, and advanced age.
在这项关于银屑病患者光敏性的研究中，向居住在斯德哥尔摩卡罗林斯卡医院服务区域内的2000名银屑病患者邮寄了调查问卷。在回复的88%的患者中，4.4%表示他们的银屑病在日晒后总是加重，7.3%表示有时会这样。在对这些据称光敏的患者中80%的样本进行电话访谈后，其中一半被认为是非光敏性的。因此，获得了光敏性的估计患病率为5.5%。43%的光敏患者有多形性日光疹病史，且银屑病皮损继发加重。对光敏患者和非光敏患者的背景因素和症状进行比较，结果显示光敏组在I型皮肤、手部银屑病、光敏遗传和高龄方面有统计学意义的增加（p小于或等于0.001）。
