“…This improvement is likely to reflect an increased diagnostic awareness toward cutaneous pigmented lesions, partly following organized information campaigns (Bulliard et al, 1992;Herd et al, 1995). 1980-1984 1985-1989 1990-1994 1980-1984 1985-1989 1990-1994 Canton of Vaud, Switzerland, 1980 The major interest and importance of this work is related to the multivariate approach in the survival analysis, which was able to simultaneously consider patients' and tumors' characteristics in the same proportional hazard model, and hence to identify and quantify the independent role of each of these factors on long-term prognosis of cutaneous malignant melanoma (Lee, 1996;Popescu et al, 1990). Most previous work, in fact, tended to consider only a few prognostic factors separately (Mänsson-Brahme et al, 1994;Nelemans et al, 1993), although multivariate analyses and interactions were considered in some of these (Cox et al, 1996;Helfenstein et al, 1996).…”