These records were identified using either specific Canadian Classification
of Diagnostic, Therapeutic, and Surgical Procedures (CCP) codes which correspond to the 9th revision of the International Classification of Disease (ICD-9), or Canadian Classification
of Health Interventions (CCI) procedure codes, which correspond to the ICD-10.
CCI refers to the Canadian Classification
of Health Interventions, developed to accompany ICD-10-CA.
To consolidate the original 49 occupations into 36, we combined occupations having few observations with other occupations within the same major Canadian Classification
and Dictionary of Occupation (CCDO) groupings.
10] The proportion (in percentage) of laser modalities among the total number of transurethral procedures overall, was calculated based on the Canadian Classification
of Health Intervention (CCI) code for the procedures.