Spatial and temporal variation in type 1 diabetes incidence in Western Australia from 1991 to 2010: Increased risk at higher latitudes and over time
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Authors
Ball, S.
Haynes, A.
Jacoby, P.
Pereira, Gavin
Miller, L.
Bower, C.
Davis, E.
Date
2014Type
Journal Article
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Ball, S. and Haynes, A. and Jacoby, P. and Pereira, G. and Miller, L. and Bower, C. and Davis, E. 2014. Spatial and temporal variation in type 1 diabetes incidence in Western Australia from 1991 to 2010: Increased risk at higher latitudes and over time. Health and Place. 28: pp. 194-204.
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Health and Place
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Abstract
This study analysed spatial and temporal variation in childhood incidence of type 1 diabetes mellitus (T1DM) among Western Australia[U+05F3]s 36 Health Districts from 1991 to 2010. There was a strong latitudinal gradient of 3.5% (95% CI, 0.2-7.2) increased risk of T1DM per degree south of the Equator, as averaged across the range 15-35° south. This pattern is consistent with the hypothesis of vitamin D deficiency at higher latitudes. In addition there was a 2.4% (95% CI, 1.3-3.6) average increase in T1DM incidence per year. These effects could not be explained by population density, socioeconomic status, remoteness or ethnicity.© 2014 Elsevier Ltd.