The Disease Prevalence is calculated by identifying the number of patients with a specific disease diagnosis and expressing it as a percentage of the total population.
The disease categories are the same as the conditions provided in the conditions filter (except for some Mental Health Conditions).
The data is displayed as:

• Prevalence per condition as a percentage of this population in a bar chart

A bar is also provided on the chart for patients that have 'None of these' disease categories. This is provided to assist practices in targeting patients for preventative care and miscoding.

Figure 105: Disease Prevalence Chart