Cambodian Developmental Milestone Assessment Tool (cDMAT): Performance reference charts and reliability check of a tool to assess early childhood development in Cambodian children.

Background: Childhood development milestones are essential skills that define how children participate in their environment socially, physically, and intellectually. A culturally-sensible and environmentally-appropriate tool is needed to assess their performance and detect disabilities at an early stage.

Method: This observational study aimed to create reference charts of performances among healthy rural and semi-rural Cambodian children aged 0-83 months for each milestone using the Denver II-based Cambodian Development Milestone Assessment Tool (cDMAT).