Association of iodine status with IQ level and academic achievement of rural primary school children in West Bengal, India

Published

2014-12-31

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Original Article

Authors

  • Koushik Bhowal
  • Indrani Mukherjee
  • Debnath Chaudhuri

Abstract

Background: Iodine being an integral component of the thyroid hormones is crucial for physical and mental development. Iodine status & intake is often measured by a surrogate measure, namely urine iodine excretion, as almost all ingested iodine is excreted in the urine. Aims &Objectives: To investigate the body Iodine status of rural primary school children and its association with their intelligence level (IQ) & academic achievement. Materials & Methods: A cross-sectional analytical study was carried out in three Government schools in the district of 24 Parganas, West Bengal, India among  300 children (150 boys & 150 girls) aged 6 to 8 years  studying in class II to IV. Urinary iodine was estimated by the 'Wet Digestion Method (Sandell-Kolthoff reaction). IQ level was evaluated using Ravens Progressive Matrices test. Academic achievement was evaluated on the marks obtained in the term end examinations.  Result: 12.34%, 15.6% & 24.3% of the children were in the severe, moderate & mild range of iodine deficiency in terms of urinary iodine excretion. It was found that 85.67% & 14.33% of the children were consumed iodated salt ?15 ppm &< 15 ppm of iodine level. 0.67%, 5% & 27.34 % of them achieved A, B & C of IQ grades, respectively.62.34 % of the students achieved first three academic grades. Body Iodine status of the children has significant positive correlation (P<0.01) with IQ grades and academic achievement. Academic achievement of the children has significant positive correlation (P<0.05) with their intelligence level. Conclusions: Poor body Iodine status of the rural primary school children may be one of the causes for their poor intelligence level and academic achievement.

How to Cite

1.
Bhowal K, Mukherjee I, Chaudhuri D. Association of iodine status with IQ level and academic achievement of rural primary school children in West Bengal, India. Indian J Community Health [Internet]. 2014 Dec. 31 [cited 2022 Oct. 3];26(Supp 2):216-22. Available from: https://www.iapsmupuk.org/journal/index.php/IJCH/article/view/497

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