Season and region as risk factors for celiac disease: a key to the aetiology?

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Season and region as risk factors for celiac disease : a key to the aetiology?

Namatovu, Fredinah (författare): Umeå universitet,Epidemiologi och global hälsa

Lindkvist, Marie, 1968- (författare): Umeå universitet,Epidemiologi och global hälsa

Olsson, Cecilia (författare): Umeå universitet,Institutionen för kostvetenskap

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Ivarsson, Anneli (författare): Umeå universitet,Epidemiologi och global hälsa

Sandström, Olof (författare): Umeå universitet,Pediatrik,Epidemiologi och global hälsa,olof.sandstrom@pediatri.umu.se

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2016-08-15
2016
Engelska.
Ingår i: Archives of Disease in Childhood. - : BMJ Publishing Group Ltd. - 0003-9888 .- 1468-2044. ; , s. 1114-1118

Relaterad länk:: https://doi.org/10.1...; visa fler...; https://umu.diva-por... (primary) (Raw object); https://adc.bmj.com/...; https://urn.kb.se/re...; https://doi.org/10.1...; visa färre...

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Background: Coeliac disease (CD) incidence has increased in recent decades, characterised by variations according to sex, age at diagnosis, year of birth, month of birth and region of birth. Genetic susceptibility and exposure to gluten are the necessary factors in CD aetiology, although several environmental factors are considered.Methods: A nationwide prospective cohort longitudinal study was conducted consisting of 1 912 204 children aged 0–14.9 years born in Sweden from 1991 to 2009. A total of 6569 children were diagnosed with biopsy-verified CD from 47 paediatric departments. Using Cox regression, we examined the association between CD diagnosis and season of birth, region of birth and year of birth.Results: Overall, CD risk was higher for children born during spring, summer and autumn as compared with children born during winter: adjusted HR for spring 1.08 (95% CI 1.01 to 1.16), summer 1.10 (95% CI 1.03 to 1.18) and autumn 1.10 (95% CI 1.02 to 1.18). Increased CD risk was highest if born in the south, followed by central Sweden when compared with children born in northern Sweden. Children diagnosed at <2 years had an increased CD risk if born in spring while those diagnosed at 2–14.9 years the risk was increased for summer and autumn births. The birth cohort of 1991–1996 had increased CD risk if born during spring, for the 1997–2002 birth cohort the risk increased for summer and autumn births, while for the birth cohort of 2003–2009 the risk was increased if born during autumn.Conclusions: Season of birth and region of birth are independently and jointly associated with increased risk of developing CD during the first 15 years of life. Seasonal variation in infectious load is the likely explanation.

Ämnesord

MEDICIN OCH HÄLSOVETENSKAP -- Hälsovetenskap -- Folkhälsovetenskap, global hälsa, socialmedicin och epidemiologi (hsv//swe)
MEDICAL AND HEALTH SCIENCES -- Health Sciences -- Public Health, Global Health, Social Medicine and Epidemiology (hsv//eng)

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Av författaren/redakt...: Namatovu, Fredin ...; Lindkvist, Marie ...; Olsson, Cecilia; Ivarsson, Anneli; Sandström, Olof

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MEDICIN OCH HÄLSOVETENSKAP: MEDICIN OCH HÄLS ...; och Hälsovetenskap; och Folkhälsovetensk ...

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Av lärosätet: Umeå universitet

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