Document Detail

Increasing Incidence, but Lack of Seasonality, of Elevated TSH Levels, on Newborn Screening, in the North of England.
MedLine Citation:
PMID:  21048833     Owner:  NLM     Status:  In-Data-Review    
Previous studies of congenital hypothyroidism have suggested an increasing incidence and seasonal variation in incidence, which may suggest nongenetic factors involved in aetiology. This study describes the incidence of elevated thyroid stimulating hormone (TSH) values in newborns, a surrogate for congenital hypothyroidism, measured as part of the screening programme for congenital hypothyroidism, over an eleven-year period (1994-2005), and assesses whether seasonal variation exists. All infants born in the Northern Region of England are screened by measuring levels of circulating TSH using a blood spot assay. Data on all 213 cases born from 1994 to 2005 inclusive were available. Annual incidence increased significantly from 37 per 100,000 in 1994 to a peak of 92.8 per 100,000 in 2003. There was no evidence of seasonal variation in incidence. The reasons for the increasing incidence are unclear, but do not appear to involve increasing exposure to seasonally varying factors or changes in measurements methods.
Mark S Pearce; Murthy Korada; Julie Day; Steve Turner; David Allison; Mohammed Kibirige; Tim D Cheetham
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Publication Detail:
Type:  Journal Article     Date:  2010-01-28
Journal Detail:
Title:  Journal of thyroid research     Volume:  2010     ISSN:  2042-0072     ISO Abbreviation:  J Thyroid Res     Publication Date:  2010  
Date Detail:
Created Date:  2010-11-04     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101536655     Medline TA:  J Thyroid Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  101948     Citation Subset:  -    
Institute of Health and Society, Newcastle University, Newcastle upon Tyne NE1 4LP, UK.
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