
In total, 59 milestones in 4 developmental domains were evaluated, and the achievement rate per child's age was calculated for each milestone.Ī contemporary developmental scale, the Tipat Halav Israel Screening (THIS) Developmental Scale, was built, presenting the 75%, 90%, and 95% achievement rates for each milestone. Data analysis was performed from September 2020 to June 2021. Exclusion criteria were preterm birth, missing gestational age, low birth weight (97% according to standardized child growth charts), and visits without developmental data or without the child's age. Participants included all children born between January 2014 and September 2020, who were followed at the maternal child health clinics from birth to age 6 years. Developmental assessments were conducted by trained public health nurses, documented in national maternal child health clinics, known as Tipat Halav, which serve all children in Israel. This is a cross-sectional, population-based study conducted between 20.

To establish milestone norms and build an updated developmental scale. However, assessment of developmental milestone norms lacks strong normative data, and there are inconsistencies among different screening tools. Routine developmental screening tests for children are used worldwide for early detection of developmental delays.
