Back to top
Field Definitions Add to compare
 
INDICATOR NAME
Name
Percentage of patients with diabetes up-to-date with low density lipoprotein (LDL) cholesterol tests (retired)
Alternate Name
Percentage of patients with diabetes up-to-date with low density lipoprotein (LDL) cholesterol tests
 
INDICATOR DESCRIPTION
Description
Percentage of diabetic patients aged 40 years and older who have had at least one low-density lipoprotein (LDL) cholesterol test within the past 12 months
Indicator Status
Retired
HQO Reporting tool/product
Personalized/Custom Reports (includes Practice Reports)
Dimension
Effective
Type
Process
 
DEFINITION AND SOURCE INFORMATION
Unit of Measurement
Percentage
Calculation Methods
Numerator/ Denominator * 100
Numerator including inclusion/exclusion

Number of diabetic patients aged 40 years and older who have had at least one LDL-C test within the past 12 months Includes:

  • Ontario residents aged 40 years and over who are identified in the ODD as diabetics in the previous two years
  • LDL tests are defined by OHIP fee codes (L243, L055, L117: on the same day)
Denominator including inclusion/exclusion

Total number of diabetic patients aged 40 years and older

Excludes:

  • Patients who were not residents in Ontario in each year
  • Patients with a missing or invalid HCN, date of birth or postal code
  • Age on index date in each corresponding year exams: under 40 years
  • Patients lost to follow-up
  • Women with gestational diabetes
Adjustment (risk, age/sex standardization)- detailed
NA
Data Source
Discharge Abstract Database (DAD), Ontario Diabetes Database (ODD), Ontario Drug Benefit (ODB), Ontario Health Insurance Plan (OHIP) Claims History Database, Registered Persons Database (RPDB)
Data provided to HQO by
Institute for Clinical Evaluative Sciences (ICES)
 
OTHER RELEVANT INFORMATION
Caveats and Limitations
- ODD does not differentiate between Type I and II cases - Only includes LDL-C tests conducted in community labs, lab tests for LDL-C conducted in hospitals are not individually submitted and therefore cannot be analysed for diabetes patients
Comments Detailed
Further information on the methodology used to generate a diabetes chronic disease cohort from which diabetic patients in this measure are drawn: The algorithm to identify patients with diabetes links different databases at ICES and is based on having two physician claims with a diagnostic code for diabetes (Dx Code 250) or one OHIP fee code for diabetes management, insulin therapy support, diabetic management assessment codes claim (Q040, K029, K030, K045, K046) or one hospitalisation with a diagnostic code of diabetes within 2 years. Gestational diabetes is excluded from this definition based on the following algorithm: Whenever there was a hospital record with a diagnosis of pregnancy care or delivery between 120 days before and 180 days after a gestational admission date, the diabetic record was considered to be for gestational diabetes, and it was excluded. The administrative data case-definition algorithm for diabetes has a sensitivity of 86% and specificity of 97%.5
 
TAGS
Sector
Primary Care
Type
Process
Topic
Chronic Disease
Dimension
Effective
Source
Discharge Abstract Database (DAD), Ontario Diabetes Database (ODD), Ontario Drug Benefit (ODB), Ontario Health Insurance Plan (OHIP) Claims History Database, Registered Persons Database (RPDB)
 
PUBLISH
Publish Datetime
13/10/2017 15:19:00