The best indicator for monitoring the impact of Iodine Deficiency Disorders control programme is :
Neonatal hypothyroidism is a sensitive pointer to environmental iodine deficiency and thus can be an effective indicator for monitoring the impact of the programme. Ref: Park's Textbook Of Preventive And Social Medicine By K. Park, 19th Edition, Page 426; Park's Textbook Of Preventive And Social Medicine By K. Park, 18th Edition, Page 467
Prevalence of goiter among school children
Urinary iodine levels among pregnant women
Neonatal Hypothyroidism
Iodine level is soil