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Type 1 incidence rapidly increasing in Shanghai's children

Discussion in 'Research' started by sgh, May 16, 2014.

  1. sgh

    sgh Approved members

    Apr 11, 2010
    A new study shows that type 1 incidence increased by 14.1% per year (!) in Shanghai's children between 1997-2011:

    Zhao Z, Sun C, Wang C, Li P, Wang W, Ye J, Gu X, Wang X, Shen S, Zhi D, et al. 2014. Rapidly rising incidence of childhood type 1 diabetes in Chinese population: epidemiology in Shanghai during 1997-2011. Acta Diabetol. http://www.ncbi.nlm.nih.gov/pubmed/24777734.

    Another new study in JAMA shows rising type 1 prevalence in the U.S. as well:

    Dabelea D, Mayer-Davis EJ, Saydah S, Imperatore G, Linder B, Divers J, Bell R, Badaru A, Talton JW, Crume T, et al. 2014. Prevalence of type 1 and type 2 diabetes among children and adolescents from 2001 to 2009. JAMA 311(17):1778-1786.

    I've made a pubmed collection of studies on diabetes incidence from around the world... very interesting to see type 1 rising in pretty much every industrialized country, over 60 countries that I've found (and hundreds of studies):

    But in Shangai-- traditionally China has very low rates of type 1-- it is rising faster than anywhere else (by far). I can't help but think that environmental pollution is a major factor in this rise. There is low genetic risk there as compared to European areas.

    (Air pollution is in fact linked to type 1, in one study anyhow, from Los Angeles, see Hathout EH, Beeson WL, Ischander M, Rao R, Mace JW. 2006. Air pollution and type 1 diabetes in children. Pediatr.Diabetes 7(2):81-87. http://www.ncbi.nlm.nih.gov/pubmed/16629713)



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