Iodine concentrations of water samples, vegetable samples and soil samples in Kien Thanh commune (KT) – Cho Moi district – An Giang province were compared with those of Duyen Ha commune (DH) – Thanh Tri district – Ha Noi city. Iodine intake of KT people was about 60 mg daily. 70.1% of urine samples had low iodine concentration. Iodine concentration in water, soil and vegetable in both communes were in the low range and had statistically significant differences. In ND, mean iodine concentration in the soil was lower than in DH (2.63530 mg/kg vs 3.0360 mg/kg). In the water iodine mean concentration was lower in KT than in DH (0.00127 mg/kg vs 0.00173 mg/kg) and in vegetable 0.96100 mg/kg vs 1.15770 mg/kg respectively
A More evidence confirming the state of iodine deficie