The metric type "5391 - Total number of children and young people assessed and decision taken whether or not to issue a statement, or EHC plan, during the calendar year" value of 356 for area Durham (Unitary) 2019 is the sum of these values for the same area and period:

The metric types that have been summed are: "5392 - Number of children and young people with statements who were assessed for an Education, Health and Care plan and a decision not to issue an EHC plan made", and "5394 - Number of children and young people assessed for whom an Education, Health and Care (EHC) plan was issued"