Inclusion Criteria:

All closed wait list entries with procedure dates within date range.
Patients that are 18 and older on the day the procedure was completed.
For paediatric procedures, patients that are younger than 23 years on the day that the procedure was completed.
Treatment Cancer procedures only. Procedures classified as "NA" are currently included.

Exclusion Criteria:

Diagnostic, Palliative and Reconstructive cancer procedures.
Procedures on Skin - Carcinoma, Skin-Melanoma, and Lymphomas.
Procedures no longer required.
Procedures assigned as Priority 1 level.
Wait days longer than 2000 days (if confirmed by hospital).
Wait list entries identified by hospitals as data entry errors.
Diagnostic imaging cases classified as specified date procedures (SDP) or timed procedures. SDP cases are excluded from MRI and CT wait time information as of January 1, 2008.
For paediatric procedures, patients that are 23 years and older on the day that the procedure was completed.

Other Criteria:

If patient unavailable dates fall outside the Decision to Treat Date up to Procedure Date, the patient unavailable dates are not deducted from the patient’s wait days. These are considered data entry errors.