Lung Resection for Stage 1 Patients Methodology
|Short description of Indicator||Proportion of patients diagnosed with stage 1 lung cancer that had a surgery within 180 days of diagnosis.|
|Rationale for measurement||Surgical resection is the treatment of choice for early stage lung cancer. Patients with stage 1 disease have the most favourable prognosis. A population-based study concluded that survival was favourable for resected early stage lung cancer patients, including groups such as elderly patients and those with multiple tumours. Five-year survival rates after resection range between 55% and 80%.|
|Evidence/references for rationale||
|Calculations for the indicator||
Percentage of patients diagnosed with stage 1 lung cancer that had a surgery within 180 days of diagnosis = (Number of stage 1 lung cancer patients that had a surgery within 180 days)/(Number of patients diagnosed with stage 1 lung cancer between 2013 and 2017)
Percentage of patients diagnosed with stage 1 lung cancer in 2017 that had a surgery within 180 days of diagnosis by age = (Number of stage 1 lung cancer patients that had a surgery within 180 days)/(Number of patients diagnosed with stage 1 lung cancer in 2017)
|Standardized Rate Calculation||N/A|
|Data sources||Ontario Cancer Registry (OCR), CIHI Discharge Abstracts Database (DAD), CIHI National Ambulatory Care Database (NACRS); Lung quality-based procedure (QBP) diagnosis and procedure code lists|
|Time Frame||CY 2013-2017|
All incident lung cancer cases from OCR with diagnosis date from January 1, 2013 to December 31, 2017, and stage 1A or 1B at diagnosis.
Classify patients into the following age groups by age at diagnosis: under 50, 50 to 64, 65 to 79, 80 and older
Select all records from DAD/NACRS with most resource-intensive intervention being a QBP lung resection and main diagnosis (MRDx) of cancer or suspected cancer with resection date (DAD)/registration date (NACRS) within 180 days of diagnosis.
If a patient had multiple surgeries, select the one closest to the date of diagnosis.
Classify lung incidents by the time between resection and surgery into:
|Data availability & limitations||