MLHU - Health Status Resource

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Glossary: D

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Dementia is an umbrella term used to describe a set of signs and symptoms associated with a progressive deterioration of cognitive functions that are severe enough to interfere with daily life.1

1. Public Health Agency of Canada. Dementia in Canada, Including Alzheimer's Disease [Internet]. Ottawa, ON: Government of Canada; 2017 [cited 2019 Sep 26]. Available from:

Dental insurance

Dental insurance can include either:
1) Third-party insurance via your place of employment
2) Private insurance, or
3) Government-subsidized programs.1

Government-subsidized programs in Ontario include:
• Healthy Smiles Ontario (HSO)2
• Ontario Seniors Dental Care Program (OSDCP)*
*Currently being developed

1. Public Health Ontario [Internet]. Toronto (ON): [2012] Report on access to dental care and oral health inequalities in Ontario; [cited 2019 Oct 10]. Available from:

2.Government of Ontario [Internet]. [2019 Jul 22] Teeth cleaning, check-ups and dental treatment for kids; [cited 2019 Oct 10]. Available from:

Dependency Ratio

The ratio of the combined child population aged 0 to 19 and population aged 65 and over to the population 20 to 64 years old.

The population aged 65 and over and those under age 20 are more likely to be socially and/or economically dependent on the working aged population, and they may also put additional demands on health services. This ratio is presented as the number of dependents for every 100 people in the working age population.1

1. Statistics Canada. Health indicators, data and definitions, community and health system characteristics 82-221-X [Internet]. Ottawa, ON: Statistics Canada. 2000 [updated 2018 Aug 22 May 24; cited 2018 Nov 27] Available from:

Diagnosis Classification

Diagnoses are classified using the Canadian modification of the International Statistical Classification of Diseases and Related Health Problems, Tenth Revision (ICD-10-CA).  For more information about what diagnoses are included in each ICD-10 chapter please consult

Dissemination Area

A small geographic area with a population of 400 to 700 persons. All of Canada is divided into dissemination areas which are used to report Census information.