Urinary iodine in 24 h is associated with natriuresis and is better reflected by an afternoon sample

Annals of Nutrition and Metabolism

Volumn 53, Issue 1, 2008, Pages 43-49

  Vanacor, Roberta ^a,b   Soares, Rosane ^a,b   Manica, Denise ^b   Furlanetto, Tania W ^a,b,c  

^a FEDERAL UNIVERSITY OF RIO GRANDE DO SUL   (Brazil)

^b HOSPITAL DE CLÍNICAS DE PORTO ALEGRE   (Brazil)

^c NONE   (Brazil)

Author keywords

Iodine sufficiency; Sodium; Twenty four hour samples; Urine collection; Within day variations

Indexed keywords

CREATININE; IODINE; SODIUM;

ADULT; ARTICLE; CORRELATION ANALYSIS; CREATININE CLEARANCE; CREATININE URINE LEVEL; FEMALE; FOOD INTAKE; HUMAN; IODINE URINE LEVEL; LINEAR REGRESSION ANALYSIS; MALE; NATRIURESIS; NORMAL HUMAN; PRIORITY JOURNAL; SODIUM URINE LEVEL; TIME; URINALYSIS; URINARY EXCRETION; URINE LEVEL;

ADULT; CIRCADIAN RHYTHM; CREATININE; CROSS-SECTIONAL STUDIES; FEMALE; HUMANS; IODINE; MALE; NATRIURESIS; SODIUM; URINALYSIS;

EID: 51849144536     PISSN: 02506807     EISSN: None     Source Type: Journal    
DOI: 10.1159/000156596     Document Type: Article

References (24)

1. Obregon MJ, Escobar del Rey F, Morreale de Escobar G: The effects of iodine deficiency on thyroid hormone deiodination. Thyroid 2005;15:917-929.
2. Wu T, Liu GJ, Li P, Clar C: Iodised salt for preventing iodine deficiency disorders (review). Cochrane Database Syst Rev 2004, CD003204, updated in 2006.
3. Delange F, de Benoist B, Pretell E, Dunn JT: Iodine deficiency in the world: where do we stand at the turn of the century? Thyroid 2001;11:437-447.
4. WHO, UNICEF, ICCIDD: Recommended Iodine Levels in Salt and Guidelines for Monitoring Their Adequacy and Effectiveness. Geneva, WHO, 1996.
5. Knobel M, Medeiros-Netto G: Disorders associated to chronic iodine deficiency (in Portuguese). Arq Bras Endocrinol Metabol 2004;48:53-61.
6. Utiger RD: Iodine nutrition - more is better. N Engl J Med 2006;354:2819-2821.
7. Teng W, Shan Z, Teng X, Guan H, Li Y, Teng D, Jin Y, Yu X, Fan C, Chong W, Yang F, Dai H, Yu Y, Li J, Chen Y, Zhao D, Shi X, Hu F, Mao J, Gu X, Yang R, Tong Y, Wang W, Gao T, Li C: Effect of iodine intake on thyroid diseases in China. N Engl J Med 2006;354:2783-2793.
8. WHO: Vitamin and mineral requirements in human nutrition, ed 2. Geneva, WHO/Food & Agriculture Organization of the United Nations, 2004.
9. Berson SA, Yalow RS: Quantitative aspects of iodine metabolism: the exchangeable organic iodine pool, and the rates of thyroidal secretion, peripheral degradation and fecal excretion, of endogenously synthesized organically bound iodine. J Clin Invest 1954;33:1533-1552.
10. WHO, UNICEF, ICCIDD: Assessment of the Iodine Deficiency Disorders, and Their Control through Salt Iodization. Geneva, WHO, 1994.
11. WHO: Assessment of Iodine Deficiency Disorders and Monitoring Their Elimination: A Guide for Programme Managers, ed 2. Geneva, WHO, 2001.
12. Brussard JH, Breands HAM, Hulshof KFAM, Kistemaker C, Löwik MRH: Iodine intake and urinary excretion among adults in The Netherlands. Eur J Clin Nutr 1997;51:s59-s62.
13. de Benoist B, Andersson M, Egli I, Takkouche B, Allen H (eds): Iodine Status Worldwide: WHO Global Database on Iodine Deficiency. Geneva, WHO, 2004.
14. Als C, Helbling A, Peter K, Haldimann M, Zimmerli B, Gerber H: Urinary iodine concentration follows a circadian rhythm: a study with 3023 spot urine samples in adults and children. J Clin Endocrinol Metab 2000;85:1367-1369.
15. Soldin OP: Controversies in urinary iodine determinations. Clin Biochem 2002;35:575-579.
16. Knudsen N, Christiansen E, Brandt-Christiansen M, Nygaard B, Perrild H: Age- and sex-adjusted iodine/creatinine ratio. A new standard in epidemiological surveys? Evaluation of three different estimates of iodine excretion based on casual urine samples and comparison to 24 h values. Eur J Clin Nutr 2000;54:361-363.
17. Sandell EB, Kolthoff IM: Micro determination of iodine by catalytic method. Mikrochim Acta 1937;1:9-25.
18. Pino S, Fang SL, Braverman LE: Ammonium persulfate: a safe alternative oxidizing reagent for measuring urinary iodine. Clin Chem 1996;42:239-243.
19. Bland JM, Altman DG: Statistical methods for assessing agreement between two methods of clinical measurement. Lancet 1986;i:307-310.
20. Rasmussen LB, Ovesen L, Christiansen E: Day-to-day and within-day variation in urinary iodine excretion. Eur J Clin Nutr 1999;53:401-407.
21. Thomson CD, Smith TE, Butler KA, Packer MA: An evaluation of urinary measures of iodine and selenium status. J Trace Elem Med Biol 1996;10:214-222.
22. Pretell EA, Delange F, Hostalek U, Corigliano S, Barreda L, Higa AM, et al: Iodine nutrition improves in Latin America. Thyroid 2004;14:590-599.
23. Als C, Keller A, Minder C, Haldimann M, Gerber H: Age- and gender-dependent urinary iodine concentrations in an area-covering population sample from the Bernese region in Switzerland. Eur J Endocrinol 2000;143:629-637.
24. Haddow JE, McClain MR, Palomaki GE, Hollowell JG: Urine iodine measurements, creatinine adjustment, and thyroid deficiency in an adult United States population. J Clin Endocrinol Metab 2007;92:1019-1022.