Document Detail

Association between thyroxine levels at birth and choanal atresia or stenosis among infants in Texas, 2004-2007.
MedLine Citation:
PMID:  23125093     Owner:  NLM     Status:  Publisher    
BACKGROUND: The causes of choanal atresia or stenosis (CA) are largely unknown. Infant thyroxine (T(4) ) levels collected during newborn screening may be proxy measures for a risk factor present during the critical period of development. Therefore, we conducted a case-control study to examine the association between newborn T(4) levels and CA. METHODS: Data for cases with CA and controls were obtained from the Texas Birth Defects Registry for the period of 2004 to 2007. Information on infant T(4) levels at birth was obtained from the Texas Newborn Screening Program. Controls (n = 3570) were drawn from unaffected births in Texas for the same period and frequency matched to cases (n = 69) on year of birth, then linked to the newborn screening database. Logistic regression was used to evaluate the association between continuous and categorical infant T(4) levels and nonsyndromic CA. RESULTS: After adjustment for gestational age and year of birth, infant T(4) levels were inversely associated with CA (adjusted odds ratio [AOR], 0.85; 95% confidence interval [CI], 0.80-0.90). We observed a linear trend (p < 0.001) across quartiles of T(4) ; compared to infants with low levels, AORs for CA were 0.50 (95% CI, 0.28-0.91), 0.39 (95% CI, 0.20-0.75), and 0.15 (95% CI, 0.06-0.40) for infants with medium-to-low, medium, and high levels, respectively. CONCLUSIONS: Our findings suggest a role of low thyroid hormone levels in the development of CA, or that low newborn T(4) levels are potential proxy measures of a risk factor present during the critical period. Birth Defects Research (Part A), 2012. © 2012 Wiley Periodicals, Inc.
Laura J Lee; Mark A Canfield; S Shahrukh Hashmi; Karen B Moffitt; Lisa Marengo; A J Agopian; John W Belmont; Debra Freedenberg; Susan M Tanksley; Laura E Mitchell; Philip J Lupo
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-2
Journal Detail:
Title:  Birth defects research. Part A, Clinical and molecular teratology     Volume:  -     ISSN:  1542-0760     ISO Abbreviation:  Birth Defects Res. Part A Clin. Mol. Teratol.     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-5     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101155107     Medline TA:  Birth Defects Res A Clin Mol Teratol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Wiley Periodicals, Inc.
Human Genetics Center, Division of Epidemiology, Human Genetics and Environmental Sciences, University of Texas School of Public Health, Houston, Texas.
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