摘要：Ultraviolet radiation is known to play a major role in the development of skin cancers. Nevertheless, in developed countries an increase in sun exposure has been observed over the last fifty years due to several sociological factors: longer holidays duration, travelling facilities and tanning being fashionable. In order to estimate the risk of skin cancer occurrence and of skin photoageing related to sun exposure behaviour, a typology was defined. A self-administered questionnaire was developed in the context of the SU.VI.MAX epidemiological study. A multiple correspondence analysis was used to summarise the information. Then, an ascending hierarchical clustering method (Ward method) was applied on the principal components. Eventually, to assign an individual to a given type, a decision tree based on the smallest number of the most relevant questions was obtained using a tree-structured method (CART algorithm). Seven behavioural types were identified for women and six for men. Thereafter, these findings will be used to identify groups of individuals for specific health education campaigns and/or intervention studies
关键词：Multivariate data analysis methods, sun exposure, sun protection, self-administred questionnaire, behavioral typology.
