A lower percentage of children considered vulnerable at school entry is a positive indicator of healthy development at approximately age 5.
This indicator is calculated by dividing the number of children who are considered vulnerable in at least 1 developmental domain by the total number of children for whom the EDI was completed (indicator reported based on school year, September to June; school year may vary slightly by province/school board). All questionnaires must meet the inclusion criteria to be included in the analyses.
A child is considered vulnerable when his or her EDI score in a developmental domain is equal to or lower than the score corresponding to the 10th percentile of all kindergarten children (based on a pan-Canadian set of EDI results) for that developmental domain. Children who are vulnerable in areas of early development are more likely to face greater challenges in school learning than those who are not vulnerable.
The pan-Canadian results may vary slightly from those published by provinces and territories because the population of reference is different.
The Canadian vulnerability percentage is calculated based on the most recent data for all available provinces and territories.
As of August 2021, coverage is not available in Nunavut.
Total number of kindergarten children with valid EDI data
Number of children who are considered vulnerable on at least 1 area of development. The cut-off score used to identify vulnerability on each area of development for this indicator was established using the 10th percentile score of a pan-Canadian set of EDI results.
Comments
Data is reported by school year (September to June; may vary slightly by province/school board); the first year of available data is for the 2004–2005 school year.
National results are calculated based on the most recent data from all available provinces and territories. Refer to the Update Frequency field above for detailed information on the most recent data available.
Provincial/territorial and health regional data includes all provinces and territories except Nunavut. Indicator results are also available on