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Migration on French territory: the behaviour of individuals. — The behaviour of individuals in terms of distance and degree of mobility is influenced by the distinctive characteristics of territory and consequently related to their regional origins. Another important factor is the process of urbanisation under way and the evolution of the urban network over the past fifty years., Les propriétés de l'espace géographique marquent les comportements migratoires individuels, définis par le niveau de mobilité et les distances parcourues. Des relations existent entre ces comportements et l'appartenance régionale des individus. Le processus d'urbanisation, les transformations du réseau urbain depuis une cinquantaine d'années interagissent fortement avec les comportements des individus., Baccaïni BrigitteBaccaïni Brigitte. Comportements migratoires individuels dans l'espace français. In: L'Espace géographique, tome 22, n°2, 1993. pp. 133-145.

International audience; In a national study, we investigated the incidence of childhood leukaemia (CL) over a 14-year period in France in relation to several measures based on the proportion of individuals who changed address between the last two national censuses. A positive association was found with the proportion of migrants who came from a distant place. The further the migrants came, the higher was the incidence of leukaemia, particularly among children aged 0-4 years in 'isolated' communes at the time of diagnosis (RR=1.4, 95% CI: 1.1,1.8 in the highest category of migration distance). Although the role of the population density was less obvious, a more marked association was found above a certain threshold. No association with the proportion of commuters was observed.British Journal of Cancer (2008) 98, 225-231. doi:10.1038/sj.bjc.6604141 www.bjcancer.com Published online 18 December 2007.

"This article presents results from a longitudinal study using data from the Norwegian population register, combined with data from the 1970 and 1980 censuses. For two generations, those born in 1948 and 1958, successive migrations are considered and the effects of various sociodemographic characteristics on migratory behaviour are explored....Event-history analysis is used to examine the duration of stay at the place reached at age 22, and the effects of individual characteristics on this duration. Since a distinction is made between intra- and inter-regional migration, it has been possible to show that these effects vary significantly depending on whether we are dealing with short- or long-distance migration."