Social & Preventive Medicine Which of the following is the best indicator of environmental iodine deficiency: March 2011 A Neonatal hypothyroidism B Prevalence of goitre in pregnancy C Prevalence of goitre in the age group of 12-18 years D Soil iodine levels 💡 Explanation Which of the following is the best indicator of environmental iodine deficiency: March 2011 ✓ Correct Answer: A. Neonatal hypothyroidism