Review: Casefinding Methods

Here is what we have learned from Casefinding Methods:

  • There are two types of casefinding methods used by registries: active and passive.
  • In active casefinding procedures, registry personnel retrieve and screen the source documents (such as disease indices, pathology reports, and so on).
  • A benefit of active casefinding procedures is that this method is more thorough and accurate because the registry personnel have extensive training in terminology that identifies reportable cases.
  • In case of passive casefinding the registry relies on other health care professionals to notify the registrar of potentially reportable cases.
  • A concern with passive casefinding is that non-registry staff are not as familiar with reporting terminology and rules, so incomplete casefinding may occur.
  • A combination of active and passive casefinding is a commonly used system in registries.


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