<prompt> Most common parameter used to detect endemic hypothyroidism -Urinary iodineNeonatal hypothyroidismRapid mass screeningRate of consumption of iodine  <response>: Neonatal hypothyroidism is a sensitive indicator of environmental iodine deficiency.This in turn indicates hypothyroidism. Parks textbook of preventive and social medicine.K Park. Edition 23.Pg no: 644 