Non‐melanoma skin cancer: Ten years of cancer‐registry‐based surveillance

Abstract

The Tasmanian Cancer Registry cam'ed out population-based surveillance of non-melanoma skin cancer (NMSC) from I978 to 1987. A total of 8.65 I NMSC were recorded in 7, I60 individuals, representing an age-standardized rate of I 6 I / I00,OOO per year.Ninety-four percent of cases were based on histological diagnosis. Incidence of basal-cell carcinoma (BCC) was higher than the incidence of squamous-cell carcinoma (SCC). The incidence of NMSC was twice as high in men as in women. Incidence increased substantially with age, more markedly for SCC than BCC. For most body sites, BCC was more frequent, but on hi&ty exposed sites such as the backs of hands, lower limbs in women and ears in men, the incidence of SCC was higher. There was an overall increase of 7% per year in the age-standardized incidence rate of NMSC. The increase was more marked for BCC than for SCC, and was consistent across age groups and both sexes. A first NMSC during the study period was associated with a 12-fold increase among men and a 15-fold increase among women in the risk of development of a new NMSC within 5 years, when compared with the NMSC incidence recorded for the population as a whole. I993 Wiley-Liss, Inc.

Incidence of nonmelanoma skin cancer in a cohort of patients with vitiligo

“…In previous epidemiologic studies, the BCC:SCC ratio varied depending on the population studied, ranging from 2.8:1 in Tasmania 20 ; 6:1 to 9:1 in northern Europe 21 ; 2.8:1 for male patients and 4.5:1 for female patients in Manitoba, Canada 22 ; and up to 11:1 in the United States. 19 Interestingly, the study by Demers et al 22 demonstrated that in Manitoba, Canada, the BCC:SCC ratio was age dependent, ranging from 8.8:1 in men and 21.8:1 in women in the age group younger than 40 years, to 1.6:1 in men and 1.5:1 in women in the age group older than 89 years.…”

Topografia do carcinoma basocelular e suas correlações com o gênero, a idade e o padrão histológico: um estudo retrospectivo de 1.042 lesões

“…20,21 This study found no evidence of any increase in the proportion of younger patients or in the proportion of female patients in recent years, contradicting observations made in some international studies. [5][6][7][8][9][10][11][12][13][14] Nevertheless, a greater proportion of extra-cephalic lesions was observed in recent years compared to previous years, principally among women. This finding, which has also been reported in other studies 9 , may be due to an actual change occurring recently in the profile of patients as a result of behaviors associated with greater recreational exposure to solar radiation.…”

“…[1][2][3] According to some studies, as well as an increase in the incidence of this form of skin cancer, changes have also occurred in the form of presentation of BCC, including an increase in the number of lesions occurring in photo-protected areas of the body and a trend towards a greater occurrence in females; however, few studies have been carried out in Brazil to evaluate these trends. [4][5][6][7][8][9][10][11][12][13][14][15][16] In addition to sun exposure, genetic susceptibility and exposure to other environmental carcinogens are factors that have been related to the etiology of these lesions. 1,2 Therefore, behavioral and biological differences between male and female patients would be expected to result in different patterns of behavior of BCC.…”

Malignant eyelid tumors in Hong Kong 1997–2009

“…It has been suggested that approximately 5-10% of all skin cancers occur on the eyelid [1]. In addition, studies have shown that the incidence of skin cancers is rapidly increasing [2][3][4][5][6][7][8]. Therefore, understanding the epidemiology and incidence trends of malignant eyelid tumors is important both to ophthalmologists for better clinical management and to health policy planners for suitable health care planning.…”