Xu D, Sun JF, Qi RQ, Zhang W, Dong LD, Liu TY, Zheng S, Niu RX, Zhang J, Cui TT, He L, Chen HD. A multicenter retrospective analysis of the clinical and pathological characteristics of 1188 cases of actinic keratosis in different ultraviolet radiation intensity areas of China.
J Cosmet Dermatol 2021;
21:2879-2888. [PMID:
34719097 DOI:
10.1111/jocd.14479]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 08/29/2021] [Accepted: 09/15/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND
Actinic keratosis (AK) is a precancerous disease, caused by ultraviolet radiation (UV).
OBJECTIVE
To analyze the clinical and pathological characteristics of AK in four areas with different ultraviolet radiation intensities.
METHODS
1188 diagnosed AK patients, from January 2000 to July 2015, in dermatology department of four hospitals were collected. The UV intensity of hospital located cities from high to low is Kunming, Yinchuan, Shenyang and Nanjing. The information comes from medical records, and the pathological types and Keratinocyte Intraepithelial Neoplasia (KIN) grades were checked by two experienced pathologists. All information was conducted a retrospective multicenter research.
RESULTS
The patients were mainly middle-aged and elderly female, which was in direct contrast to the majority of men in European. The age of onset in Kunming group was lower than that in Yinchuan Group (p = 0.013) and Nanjing Group (p < 0.01). The course of disease in Kunming group was significantly shorter than that in Nanjing Group (p < 0.001). The lesions were almost located in the exposed area. The proportion of unexposed areas in Shenyang group was significantly higher than that in other groups (p < 0.001). There were statistical differences in pathological morphological classification among the four groups. These differences were not affected by age and gender. The number of KIN III grade patients in Shenyang group was significantly higher than that in other three groups (p < 0.05).
CONCLUSION
The Asian patients were mainly female. The clinical characteristics of AK are closely related to UV intensity, and environmental pollution, lifestyle, religious beliefs and other factors are also related.
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