Fig 1.
Flow diagram of free text search development.
Table 1.
Free text search development: The returned results for the first search, the first iteration and the final search for each service.
Fig 2.
A Venn diagram showing the overlap of individuals between the structured fields and free text search.
Table 2.
Sociodemographics and diagnosis of the individuals identified by the different approaches, and from the national survey [1].