Indicator Library: General Methodology Notes — Clinical Indicators, December 2024

Table of Contents

• Table of contents 3
• 1 Purpose of the general methodology notes 4
• 2 Data sources 4
• 3 Health region assignment 5
• 4 Population estimates 5
• 5 Hospitalization data and rates 6
• 6 Identifying acute care and day procedure data 8
• 7 Grouping methodologies 11
• 8 Record linkage — Linking cases across hospitals and building episodes of care 11
• Record linkage 11
• Episodes of care 11
• 9 Peer group methodology 12
• 10 Calculation of Canada and hospital peer group rates 13
• 11 Risk adjustment 14
• 12 Defining neighbourhood income quintile 16
• Assigning patients to neighbourhood income quintiles 16
• Construction of income quintiles for dissemination areas 16
• Limitations 17
• 13 Defining urban and rural/remote 17
• Assigning patients to urban and rural/remote locations 17
• 14 Health disparity measures 18
• 15 Major surgery patient group list — CMG+ codes 20
• 16 Flowchart: 30-day obstetric/pediatric/surgical/medical readmission 21
• 17 The Charlson Index 22
• Appendix: Text alternative for figures 24
• References 26