Table 1: Results as applied in Electronic Medical Record Administrative data Linked Database (EMRALD)

Quality indicator	Numerator	Denominator	Percentage
Prevalence, incidence and mortality
1. Patients with stage 3 or greater chronic kidney disease who have it documented in their cumulative patient profile*	1856	6848	27.1
Screening, diagnosis & risk factors
2. Percentage of patients with an initial eGFR < 60 mL/min per 1.73 m² with an eGFR within 6 months*	4068	8573	47.5
3. Percentage of patients with an initial† eGFR < 60 mL/min per 1.73 m² with an ACR within 6 months*	1400	8573	16.3
4. Percentage of patients with risk factors for chronic kidney disease (diabetes, hypertension) with an eGFR in the past 18 months	23 998	32 637	73.5
5. Percentage of patients with risk factors for chronic kidney disease (diabetes, hypertension) with an ACR in the past 18 months	9291	32 637	28.5
Management
6. Percentage of patients with chronic kidney disease with an eGFR in the past 18 months	6190	6848	90.4
7. Percentage of patients with chronic kidney disease with an ACR in the past 18 months	2341	6848	34.2
8. Percentage of patients with chronic kidney disease with a BP recorded in the past 9 months	5692	6848	83.1
9. Percentage of patients with diabetes and albuminuria (moderately or severely increased ACR ≥ 3 mg/mmol) with a BP recorded in the past 9 months	5439	6320	86.1
10. Percentage of patients with chronic kidney disease with a most recent BP < 140/90 mm Hg, or with chronic kidney disease and diabetes with a most recent BP < 130/80 mm Hg	4465	6848	65.2
11. Percentage of patients with diabetes and albuminuria (moderately or severely increased ACR ≥ 3 mg/mmol) who were prescribed an ACE inhibitor or ARB unless a contraindication or adverse effects are recorded	3734	4997	74.7
12. Percentage of patients with chronic kidney disease who had a serum potassium test 7-30 days after initial ACE inhibitor-ARB prescription*	2944	4965	59.3
13. Percentage of patients with chronic kidney disease with an ACE inhibitor and an ARB prescription on the same day*	48	6848	0.7
14. Percentage of patients with chronic kidney disease and ≥ 1 prescription for NSAIDs*	99	6848	1.4
15. Percentage of patients ≥ 50 years and ≤ 80 years of age with chronic kidney disease taking a statin unless contraindicated	2236	3701	60.4
16. Percentage of patents with chronic kidney disease who received an influenza vaccine in the past year unless contraindicated	4493	6848	65.6
Referral to a specialist
17. Percentage of patients aged < 80 years with a referral to a nephrologist for eGFR < 30 mL/min per 1.73 m²	339	508	66.7

Note: ACE = angiotensin-converting enzyme, ACR = albumin-creatinine ratio, ARB = angiotensin II receptor blocker, BP = blood pressure, eGFR = estimated glomerular filtration rate, NSAID = nonsteroidal anti-inflammatory drug.

*Modified to be feasible to measure.

†First eGFR < 60 mL/min per 1.73 m² at least 6 months before the load date of the electronic medical record.