Key concepts

Prevelance, impact and burden

Key concept Description
Burden of disease Burden of disease is measured in disability-adjusted life years (DALYs)—years of life lost due to premature mortality (fatal burden) and years of healthy life lost due to poor health (non-fatal burden).
Comorbidity Comorbidity refers to occurrence of more than one condition/disorder at the same time.
Prevalence Prevalence measures the proportion of a population with a particular condition during a specified period of time (period/point prevalence), usually measured over a 12-month period or over the lifetime of an individual (lifetime prevalence).