Evaluation of iodine salt intake, salt storage, and urinary iodine among the households in Markazi Province, Iran
DOI:
https://doi.org/10.22122/cdj.v8i4.555Keywords:
Iodine, Iodized Salt, Urinary Iodine Concentration, HouseholdsAbstract
BACKGROUND: Iodine deficiency is known as a major nutritional health problem in Iran. The aim of this study was to evaluate iodine salt intake, salt storage, and urinary iodine in households of Markazi Province, Iran, in 2014.
METHODS: In this cross-sectional analytical study, 440 households of 11 cities in Markazi Province in 2014 were selected through a multistage random sampling. A structured questionnaire was used to collect information about the type of salt used and awareness about salt storage. Parameters of salts were measured by taking the samples from household salt. Simultaneously, urinary iodine was measured via samples from the elementary students in the household. Data were analyzed using SPSS software.
RESULTS: Of 440 households, 225 households (58.0%) used iodized refined salt. Approximately, 60.0% of households were aware of the correct way of salt storage. The mean urinary iodine concentration (UIC) of children was 19.2 ± 18.3 μg/l. The average iodine concentration in household salts was 29.3 ± 3.8 ppm and only half of the salt-producing companies had iodine levels above 30 ppm. The average of salt heavy metals at the level of production and consumption was at a standard level.
CONCLUSION: The average iodine concentration of salts was less than the standard level. Therefore, in the absence of proper monitoring of the cycle of production and supply of iodized salt, there is a possibility of recurrent iodine deficiency complications in Markazi Province. Enhancing public awareness about salt storage for maintaining the quantity and quality of iodine is recommended.
References
Delshad H, Mehran L, Azizi F. Appropriate iodine nutrition in Iran: 20 years of success. Acta Med Iran 2010; 48(6): 361-6.
Javaheri J, Delavar M, Khodayari M. Examination of iodine and purity of salts in different level with surveying of storage and consumption habits and urine iodine measurement in Markazi Province's households in 2015 year [Project]. Arak, Iran: Arak University of Medical Sciences; 2015. [In Persian].
Wang Z, Zhu W, Mo Z, Wang Y, Mao G, Wang X, et al. An Increase in Consuming Adequately Iodized Salt May Not Be Enough to Rectify Iodine Deficiency in Pregnancy in an Iodine-Sufficient Area of China. Int J Environ Res Public Health 2017; 14(2): 206.
Pasdar Y, Mohammadi G, Mansouri A, Alghasi S, Darbandi M, Mahmoodi M, et al. Iodine content in salt used in Kermanshah, 2013-2014. J Mazandaran Univ Med Sci 2016; 26(135): 144-8. [In Persian].
Mohammadi M, Azizi F, Hedayati M. Iodine deficiency status in the WHO Eastern Mediterranean Region: A systematic review. Environ Geochem Health 2018; 40(1): 87-97.
Mekonnen TC, Eshete S, Wasihun Y, Arefaynie M, Cherie N. Availability of adequately iodized salt at household level in Dessie and Combolcha Towns, South Wollo, Ethiopia. BMC Public Health 2018; 18(1): 1152.
Emami A, Shahbazi H, Sabzevari M, Gawam Z, Sarkissian N, Hamedi P, et al. Goiter in Iran. Am J Clin Nutr 1969; 22(12): 1584-8.
Azizi F, Sheikholeslam R, Hedayati M, Mirmiran P, Mahdavi A, Delshad H. Goiter survey and urinary iodine concentration in 8 to 10-year-old schoolchildren from Fars Province in 1996. Iran
J Endocrinol Metab 2001; 3(1): 37-42.
Knowles JM, Garrett GS, Gorstein J, Kupka R, Situma R, Yadav K, et al. Household coverage with adequately iodized salt varies greatly between countries and by residence type and socioeconomic status within countries: Results from 10 national coverage surveys. J Nutr 2017; 147(5): 1004S-14S.
Azizi F, Mehran L. Experiences in the prevention, control and elimination of iodine deficiency disorders: A regional perspective. East Mediterr Health J 2004; 10(6): 761-70.
De Benoist B., Delange F. Iodine deficiency: Current situation and future prospects. Sante 2002; 12(1): 9-17.
Mo Z, Wang XF, Mao GM, Zhu WM, Xu PW, Zou Y, et al. Goitre and urinary iodine in coastal and inland areas with low and high iodized salt coverage in Zhejiang province, China. Asia Pac J Clin Nutr 2017; 26(4): 671-9.
Manousou S, Dahl L, Heinsbaek TB, Hulthen L, Nystrom Filipsson H. Iodine deficiency and nutrition in Scandinavia. Minerva Med 2017; 108(2): 147-58.
Khattak RM, Khattak MNK, Ittermann T, Volzke H. Factors affecting sustainable iodine deficiency elimination in Pakistan: A global perspective. J Epidemiol 2017; 27(6): 249-57.
Zahidi A, Zahidi M, Taoufik J. Assessment of iodine concentration in dietary salt at household level in Morocco. BMC Public Health 2016; 16: 418.
Nepal AK, Raj Shakya P, Gelal B, Lamsal M, Brodie DA, Baral N. Household salt iodine content estimation with the use of rapid test kits and iodometric titration methods. J Clin Diagn Res 2013; 7(5): 892-5.
Das DK, Chakraborty I, Biswas AB, Sarkar GN, Shrivastava P, Sen S. Iodine deficiency disorders among school children of Dakshin Dinajpur District, West Bengal. Indian J Public Health 2005; 49(2): 68-72.
Hedayatifar R. Determination of lead, cadmium, mercury and arsenic in salt by the graphite furnace atomic absorption spectrometry. Feyz 2013; 16(7): 617-8. [In Persian].
Kapil U. Successful efforts toward elimination iodine deficiency disorders in India. Indian J Community Med 2010; 35(4): 455-68.
Azizi F, Delshad H, Amouzegar A, Hedayati M, Hosseini M, Mehraein M. Assessment of iodine intake in Yazd province 17 years after universal salt iodization (The Fourth National Survey: 2007).
J Shaheed Sadoughi Univ Med Sci 2010; 18(3):
-70. [In Persian].
Mehdinia S, Nasehinia H, Gharib-Bolok R, Azizi R,
Rezai M. A Survey of iodine concentration in the iodine salts distributed in the province of Semnan in autumn 2004. Koomesh 2005; 6(4): 285-90. [In Persian].
Amiri Raftani Z, Solaimani S. Evaluation of the purity and iodine content of edible salts in the supply level of Kermanshah province. Iran J Nutr Sci Food Technol 2018; 15(9): 17-23. [In Persian].
Heidari Z, Arefhosseini SR, Hedayati M, Vaghef-Mehrabany E, Ebrahimi-Mameghani M. Iodine status, and knowledge about iodine deficiency disorders in adolescent school girls aged 14-19 years, 2016. Health Promot Perspect 2019; 9(1): 77-84.
Nazeri P, Mirmiran P, Delshad H, Hedayati M, Azizi F. Evaluation of Urinary Iodine Concentration and Iodine Content of Households Salt in South of Tehran. Iran J Endocrinol Metab 2010; 12(3): 294-9. [In Persian].
