Mortality Rates

CFR

**Case Fatality Rate** 🔺 Deaths from a specific disease/cases of that disease. 🔺Measures the severity of a particular disease.

PMR

**Proportionate Mortality Ratio** Number of deaths within a population due to a specific disease or cause divided by the total number of deaths in the population during a time period such as a year.

What are some advantages of Cause-Specific?

🔺Homogenous groups for meaningful comparison. 🔺Provide indicators to measure community health. 🔺More specific information allows targeted approaches. 🔺Death rates by specific causes, age group, country or residence.

Case fatality rate

Case fatality rate, also called case fatality ratio, in epidemiology, the proportion of people who die from a specified disease among all individuals diagnosed with the disease over a certain period of time. Case fatality rate typically is used as a measure of disease severity and is often used for prognosis (predicting disease course or outcome), where comparatively high rates are indicative of relatively poor outcomes.

Cause-Specific

Deaths attributed to a particular cause/disease/illness.

Crude Rates

Measures referring to the total population; they are not specific to any age groups or disease categories.

Mortality Rate

Number of deaths/average per 1000

How are Crude Rates obtained?

Obtained from death certificates, but biased reporting. For example a person may have died from cardiac arrest but the underlying cause of death is immune problem or chronic disease.