Abstract:
OBJECTIVE:Elevated hearing thresholds have been demonstrated in populations afflicted by endemic cretinism as a result of severe iodine deficiency. However, data on the effects of less severe iodine deficiency on hearing thresholds in apparently normal children are scant. This study addresses the question whether there is a relationship among iodine variables, hearing and mental performance in a mildly iodine-deficient population. DESIGN:A randomized, placebo-controlled intervention trial with an observation period of 11 months. SETTING:An iodine-deficient area in northern Benin. SUBJECTS:A total of 197 school children, aged 7-11 y. INTERVENTIONS:A total of 97 children received an oral dose of iodized oil, containing 540 mg I, while 100 children received a placebo. About 3-4 months after supplementation, the whole population began to have access to iodized salt. Non-verbal mental tests were administered and biochemical indicators (thyrotropin, free thyroxine, thyroglobulin and urinary iodine) were measured at the beginning and the end of the study. Hearing was measured at the end of the study in both ears by pure-tone audiometry at seven frequencies. RESULTS:In this mildly iodine-deficient child population children with higher serum thyroglobulin concentrations had significantly higher hearing thresholds in the higher frequency range (> or = 2000 Hz) than children with lower serum thyroglobulin concentration. Moreover children with lower hearing thresholds performed significantly better on the mental tests used. CONCLUSIONS:Even when iodine deficiency is 'mild', promotion of adequate iodine intake through salt iodization programs and other means remains crucial. SPONSORSHIP:Nestlé Foundation, Lausanne, Switzerland; Wageningen University, Wageningen, The Netherlands.
journal_name
Eur J Clin Nutrjournal_title
European journal of clinical nutritionauthors
van den Briel T,West CE,Hautvast JG,Ategbo EAdoi
10.1038/sj.ejcn.1601220subject
Has Abstractpub_date
2001-09-01 00:00:00pages
763-8issue
9eissn
0954-3007issn
1476-5640journal_volume
55pub_type
临床试验,杂志文章,随机对照试验abstract::Nutrient intakes in four areas of the UK were compared, 7-d weighed intake data were obtained for representative community samples of middle-aged men in Caerphilly (South Wales), Northern Ireland, Edinburgh and Bristol (Speedwell). Intakes of energy were higher in Edinburgh than in the other three areas, but following...
journal_title:European journal of clinical nutrition
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journal_title:European journal of clinical nutrition
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journal_title:European journal of clinical nutrition
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abstract:OBJECTIVE:To evaluate glycaemic and insulinaemic index and in vitro digestibility of the five most common Cameroonian mixed meals consisting of rice+tomato soup (diet A), bean stew+plantains (B), foofoo corn+ndolé (C), yams+groundnut soup (D), and koki beans+cassava (E). SUBJECTS:Ten healthy non-obese volunteers, aged...
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pub_type: 杂志文章,随机对照试验
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pub_type: 杂志文章,随机对照试验
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更新日期:2014-07-01 00:00:00
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pub_type: 杂志文章,随机对照试验
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pub_type: 临床试验,杂志文章,随机对照试验
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