Percentage of Population With Diagnosed Dementia, Including Alzheimer Disease
Identifying Attributes
Care Settings
Country
Publishing Organisation
Type of Quality Indicator
IOM Quality Dimension
Domain
Defining Attributes
Definition
Percentage of the health insured population aged 65+ years with diagnosed dementia, including Alzheimer disease, within a given time period. People with diagnosed dementia, including Alzheimer's disease, were identified by having at least one inpatient hospital separation with an ICD-9(-CM) or equivalent ICD-10-CA dementia, including Alzheimer disease, code selected from all available diagnostic fields in the hospital record, or at least three physician claims with an ICD-9 dementia, including Alzheimer disease, code within two years, with at least 30 days between each claim, selected from all available diagnostic codes on the claim, or at least one drug prescription filled for a selected dementia, including Alzheimer disease, drug.
Numerator
Number of health insured people, aged 65+ years, with diagnosed dementia, including Alzheimer disease, at a given point in time
Denominator
Total health insured population, aged 65+ years, at a given point in time
Exclusions
Use of Risk Adjustment
Risk Adjustments
Age
Stratifications
Sex (crude), age group (5 year and life course), province/territory (crude and age-standardised), and trend (age-standardised).
Collection and Reporting Attributes
Type of Data Collection
Data Collection Methods
Canadian Chronic Disease Surveillance System (CCDSS), Public Health Agency of Canada. The CCDSS is a collaborative network of provincial and territorial surveillance systems supported by the Public Health Agency of Canada. In each province and territory, the health insurance registry database is linked to the physician billing and hospitalisation databases using the health card number as a unique personal identifier. Where available and specified by the case definition, data from the prescription drug databases are also linked.
The start year for reporting CCDSS data varies by disease/condition. The determination of the first reported year aims to allow enough time to capture all prevalent cases, given the parameters of the disease/condition specific case definition, and to ensure previously prevalent cases are excluded from incident cases.
Frequency of Data Collection
Frequency of Data Collection in Days
Reporting Methods
Online at health-infobase.canada.ca/ccdi/data-tool/?edi=2021&Dom=6&Ind=31&MS=52 , also Annually as a journal article in Health Promotion and Chronic Disease Prevention in Canada by the Canadian Chronic Disease Indicators Committee
Reporting Frequency
Reporting Frequency in Days
Indicator Has Recommended Targets
Source and Reference Attributes
Evidence Source
Centre for Surveillance and Applied Research, Public Health Agency of Canada. Canadian Chronic Disease Indicators Data Tool, 2021 Edition. Public Health Infobase. Ottawa (ON): Public Health Agency of Canada, 2021.