Diabetes: HbA1c tested (≥2 in 12 months)
Clinical Quality & Outcomes
How this indicator is defined
Methodology version v1.0
Percentage of rostered patients with diabetes who have at least two HbA1c lab results documented within the past 12 months.
Proportion of eligible patients (percentage)
The percentage of eligible patients (the denominator) who have at least 2 HbA1c test records within the 1-year window. Each patient is counted once.
Data inputs
- HbA1c test — LOINC 4548-4
Derived from
What this indicator measures— Name, alignment, goal, rationale.
- Indicator nameField 1 — Indicator name
- Diabetes: HbA1c tested (≥2 in 12 months)
- AlignmentField 2 — Alignment
- Diabetes Canada Clinical Practice Guidelines (2018)
- Ontario Health MyPractice Primary Care indicator catalogue
- Strategic goalField 3 — Strategic goal
- Ensure patients with diabetes receive regular glycemic monitoring to guide treatment decisions.
- RationaleField 5 — Rationale
- Regular HbA1c monitoring is the cornerstone of diabetes management. Two tests per year allow clinicians to assess treatment response and adjust therapy.
How it's computed— Scoring method, numerator, denominator, inclusions, exclusions.
- NumeratorField 6 — Numerator
- Rostered patients in the denominator with ≥2 HbA1c lab results documented in the EMR within 12 months of the reporting-period end date.
- DenominatorField 7 — Denominator
Active rostered patients with a diabetes diagnosis (ICD-9: 250.x or ICD-10: E10-E14), age 18–85 at reporting-period end.
- Sex eligibility: F, M
- Age range: 18–85
- Active as of reporting-period end: yes
- ExclusionsField 9 — Exclusions
- Patients with gestational diabetes only (no persistent diabetes dx).
- Patients deceased before the reporting-period end date.
How patients are attributed— Attribution rule and risk adjustment.
- Attribution ruleField 10 — Attribution rule
- Enrolment (rostered)
- Risk-adjustment modelField 11 — Risk-adjustment model
- None
How comparison works— Peer group, reliability threshold, peer comparator.
- Reliability thresholdField 13 — Reliability threshold
- 20
Data + reporting— Data source, reporting frequency, direction of improvement, limitations.
- Reporting frequencyField 15 — Reporting frequency
- quarterly
- Direction of improvementField 16 — Direction of improvement
- Higher is better
Targets + governance— Target, justification, owner, review, approval, version, notes.
- TargetField 18 — Target
- 70.0% — the clinic's target for this indicator, set by the product owner.
- Methodology versionField 23 — Methodology version
- v1.0