Psychometric properties of the Malayalam version of ECOHIS.

Background: The Early Childhood Oral Health Impact Scale (ECOHIS) has been developed in English for determining oral health-related quality of life (OHRQoL) in the preschool children. It has been translated and validated in different languages to suit different cultures. The ECOHIS is, till date, the only tool available for research in this field on preschool age children.