Relationship of IQ in children between 6 to 12 years old with exposure to arsenic in drinking water, preliminary results

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Introduction: The countries with highest concentrations of As in Drinking water in the world are Argentina, Bangladesh, Chile, China, USA, Hungary, India, Mexico, Nepal and Romania. The concentration accepted by the WHO is 10 g/L; in Torreon, the concentration of As according SIMAS in 2014 was 27 ± 102 g/L (0.2–942 g/L), and 2015 was x˜ = 19 g/l ± 17.4 (.01–125). In the common land El Lequeitio were found concentrations of 223 g/L.
Diseases associated with arsenic are liver cancer, bladder, skin, and other like diabetes, neuropathies, child keratosis, and also lower IQ.
Objective: The objective of this study is to correlate measurements of Intelligence at the time of exposure to arsenic in drinking water of children.
Materials and methods: 29 girls and 30 boys, 6 to 12 years old (x˜ = 8.7 ± 1.56), we applied intelligence test WISC-IV, with FIQ (x˜ = 82.64 ± 11.65), The FIQ consists of areas like: VCI (x˜ = 79.3 ± 12.5), VSI (x˜ = 86.7 ± 12.86) WMI (90.7 ± 14.74) PSI (x˜ = 90.7 ± 14.74). The Rosenberg Test of Self-Esteem was applied to the children (70%
of the children showed normal and high self-esteem), to the parents of the children we applied a test with questions like, Time living in the place TP(x˜ = 7.33 ± 3), and glasses of water ingested WI (3.15 ± .9). 30 water samples were taken place, and analyzed with the Arsenator apparatus (x˜ = 15.5 ± 9.7 g/L). Socioeconomic Status questionnaires were applied to mothers of the children (x˜ = 69 ± 32, the score range is 51–223).
Results: The WI was correlated with FIQ, (r2 = −.264, p < 0.05), VCI (r2 = −261, p < 0.05) and the VSI (−0.271, p < 0.05).


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