Burgess, John and Seal, JA and Stilwell, GM and Reynolds, PJ and Taylor, ER and Parameswaran, V, A case for universal salt iodisation to correct iodine deficiency in pregnancy: Another salutary lesson from Tasmania, Medical Journal of Australia, 186, (11) pp. 574-576. ISSN 0025-729X (2007) [Refereed Article]
OBJECTIVE: To assess the impact of iodine fortification of bread on the iodine status of pregnant women, and to determine if studies of iodine levels in school-age children were indicative of women's gestational iodine status.
DESIGN: Urinary iodine surveys of pregnant Tasmanian women before and after bread was fortified with iodine in October 2001.
PARTICIPANTS AND SETTING: 285 women attending the Royal Hobart Hospital (RHH) antenatal clinic from 1 October 2000 to 30 September 2001 and 517 women attending the RHH antenatal clinic or primary health care centres in 2003-2006.
MAIN OUTCOME MEASURES: Median urinary iodine concentration (UIC) for comparison against the World Health Organization recommendation of of 150-249 microg/L for pregnant women.
RESULTS: Before supplementation, the median UIC of the 285 women attending the RHH antenatal clinic was 76 microg/L. After supplementation, median UICs were 81 microg/L for 288 women attending primary health care centres and 86 microg/L for 229 women attending the RHH antenatal clinic. Differences in mean UIC were not significant for either the antenatal clinic group (P=0.237) or the primary health care group (P=0.809) compared with the pre-supplementation group.
CONCLUSIONS: Iodine deficiency in pregnancy persists despite being corrected in Tasmanian children. Successful iodine supplementation must target reproductive-age and pregnant women and be substantiated by ongoing monitoring during pregnancy and lactation. A robust national program for correcting iodine deficiency is urgently needed. Mandatory universal salt iodisation has international endorsement, and should be considered the preferred strategy for eliminating iodine deficiency in Australia.
|Item Type:||Refereed Article|
|Research Division:||Medical and Health Sciences|
|Research Group:||Clinical Sciences|
|Objective Group:||Clinical Health (Organs, Diseases and Abnormal Conditions)|
|Objective Field:||Endocrine Organs and Diseases (excl. Diabetes)|
|UTAS Author:||Burgess, John (Professor John Burgess)|
|UTAS Author:||Stilwell, GM (Dr Georgie Stilwell)|
|Web of Science® Times Cited:||49|
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