“…Similar trends toward earlier detection and improved survival were observed in Australia (Burton et al, 1993;Heenan et al, 1991;Roder et al, 1995), Scotland (Herd et al, 1995;MacKie et al, 1997), Denmark (Drzewiecki et al, 1990) and Switzerland (Levi et al, 1995). However, changes in the diagnosis of the disease seem unlikely to totally explain the rise in incidence (Horn-Ross et al, 1991;van der Esch et al, 1991), and little improvement in survival has been observed between cases diagnosed in 1973 and in 1984 in Connecticut (Berwick et al, 1994.Prognosis from melanoma is better at younger ages and in females (Corona et al, 1994;Heenan et al, 1991; Mäsbäck et al, 1994 Mäsbäck et al, , 1997Roder et al, 1995; Thörn et al, 1996) and varies according to anatomic site (i.e., better in melanomas of the limbs, MacKie et al, 1995MacKie et al, , 1997, but the relationship between tumor and host characteristics is not well quantified (Corona et al, 1994; Thörn et al, 1996).Thus, we considered, by means of a multivariate approach, trends in survival from cutaneous malignant melanoma in relation to patients' and tumors' characteristics, using data from the Cancer Registry of the Swiss Canton of Vaud, a population particularly well surveilled with reference to skin neoplasms (Levi et al, 1988(Levi et al, , 1995.
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