Hancox John G, Sheridan Scott C, Feldman Steven R, Fleischer Alan B
Bristol Myers-Squibb Center for Dermatology Research and the Department of Dermatology, Wake Forest University School of Medicine, Winston-Salem, North Carolina 27157, USA.
Int J Dermatol. 2004 Jan;43(1):6-11. doi: 10.1111/j.1365-4632.2004.01828.x.
Seasonal variation has been demonstrated in many diseases, including certain skin diseases.
To determine whether there is seasonal variation in dermatologic office visits in the USA.
Data on dermatologic office visits were obtained from representative visits to outpatient physicians in the USA from the National Ambulatory Medical Care Survey from 1990 to 1998. Office visit seasonality was examined for all skin conditions, and individually for the 15 most commonly diagnosed conditions.
Office visits for skin conditions were seasonal (P = 0.002). The magnitude of variation can be roughly expressed by the following scheme: actinic keratosis (P = 0.0001) > acne (P = 0.0001) > folliculitis (P = 0.002) > dyschromia (P = 0.01) > seborrheic keratosis (P = 0.04) > psoriasis (P = 0.07) > seborrheic dermatitis (P = 0.09). Visits for skin cancer, not otherwise specified (skin cancer NOS), atopic dermatitis, cysts, common wart, wart, not otherwise specified (wart NOS), rosacea, contact dermatitis, and benign tumors showed no significant seasonal variations or trends.
Dermatologic office visits are seasonal, with visits for individual diseases varying in their magnitude of seasonality. This seasonal variation may be a result of biological and nonbiological variables.
许多疾病都存在季节性变化，包括某些皮肤病。
确定美国皮肤科门诊就诊是否存在季节性变化。
皮肤科门诊就诊数据来自1990年至1998年美国国家门诊医疗调查中具有代表性的门诊医生就诊情况。对所有皮肤疾病的门诊季节性进行了检查，并分别对15种最常见诊断疾病进行了检查。
皮肤疾病的门诊就诊具有季节性（P = 0.002）。变化幅度大致可按以下顺序表示：光化性角化病（P = 0.0001）＞痤疮（P = 0.0001）＞毛囊炎（P = 0.002）＞色素沉着异常（P = 0.01）＞脂溢性角化病（P = 0.04）＞银屑病（P = 0.07）＞脂溢性皮炎（P = 0.09）。未另作说明的皮肤癌（皮肤癌NOS）、特应性皮炎、囊肿、寻常疣、疣（未另作说明，疣NOS）、酒渣鼻、接触性皮炎和良性肿瘤的就诊未显示出明显的季节性变化或趋势。
皮肤科门诊就诊具有季节性，不同疾病的就诊季节性幅度有所不同。这种季节性变化可能是生物和非生物变量导致的结果。
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