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Inflamm Bowel Dis. 2011 Aug;17(8):1778-83. doi: 10.1002/ibd.21550. Epub 2010 Nov 15.

Incidence trends of pediatric inflammatory bowel disease in Finland, 1987-2003, a nationwide study.

Author information

1
Pediatric Research Centre, University of Tampere, Finland. pieta.lehtinen@uta.fi

Abstract

BACKGROUND:

The present study aimed to characterize the incidence of pediatric inflammatory bowel disease (IBD) in Finland and determine its temporal trends.

METHODS:

The patients' data were based on the database of the Social Insurance Institution. New cases diagnosed with IBD at the age <18 years in Finland between years 1987-2003 were included. Annual incidence rates were calculated per 100,000 pediatric populations (with 95% confidence intervals [CI]). The country is divided into 21 hospital districts and regional differences were evaluated accordingly.

RESULTS:

The incidence of pediatric IBD increased from 5 per 100,000 in 1987 to 15 per 100,000 in 2003. The average rate of increase was 6.5% per year (95% CI 5.4%-7.5%). The trends were comparable for boys and girls, also by age group. Information on disease subtype was available from 1992 and during this 12-year period the incidence of Crohn's disease (CD) increased from 2-5 per 100,000 and that of ulcerative colitis (UC) from 4-9 per 100,000.

CONCLUSIONS:

Our results demonstrate a very high incidence rate for childhood IBD and in particular UC in Finland. Furthermore, a rapid increase took place nationwide in the incidence of both CD and UC during the past two decades.

PMID:
21744433
DOI:
10.1002/ibd.21550
[Indexed for MEDLINE]
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