| Titre : | Roads, railways, and childhood cancers. (2006) |
| Auteurs : | KNOX (E.G.) : GBR. Mill Cattage. Front Street. Great Comberton. Pershore Worcestershire. |
| Type de document : | Article |
| Dans : | Journal of epidemiology and community health (vol. 60, n° 2, 2006) |
| Pagination : | 136-141 |
| Langues: | Anglais |
| Mots-clés : | Cancer ; Enfant ; Homme ; Pollution atmosphérique ; Circulation routière ; Grande Bretagne ; Royaume Uni ; Europe ; Leucémie ; Carcinogène ; Facteur risque |
| Résumé : | [BDSP. Notice produite par INIST-CNRS rD2R0xgq. Diffusion soumise à autorisation]. Study objectives : To locate geographical sources of engine exhaust emissions in Great Britain and to link them with the birth addresses of children dying from cancer. To estimate the cancer initiating roles of nearby roads and railways and to measure effective ranges. Design : Birth and death addresses of all children born between 1955 and 1980 in Great Britain, and dying from leukaemia or other cancer during those years, were linked to locations of railway stations, bus stations, ferry terminals, railways, roads, canals, and rivers. Nearest distances to births and deaths were measured, and migration data relating to children who had moved house were analysed. Excesses of close to hazard birth addresses, compared with close to hazard death addresses, indicate a high prenatal or early postnatal risk of cancer initiation. Setting and subjects : Child cancer birth and death addresses and their map references were extracted from an earlier inquiry. Map references of putative hazards were downloaded from the Ordnance Survey national digital map of Great Britain. These data are recorded to a precision of one metre and have ground accuracies around 20 metres. Main results : Significant birth excesses were found within short distances of bus stations, railway stations, ferries, railways, and A, B class roads, with a relative risk of 2.1 within 100 m, tapering to neutral after 3.0 km. About 24% of child cancers were attributable to these joint birth proximities. Roads exerted the major effect. Conclusions : Child cancer initiations are strongly determined by prenatal or early postnatal exposures to engine exhaust gases, probably through maternal inhalation and accumulation of carcinogens over many months. The main active substance is probably 1,3-butadiene. |
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