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Help and Frequently Asked Questions

Thank you for your interest in data on the chronic conditions and risk factors in Oregon. The information below will help you use the Chronic Conditions Data Portal (CCPD). If you have additional questions or need help interpreting data click on the "Email us" button.

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To display information using the CCDP there are several types of user interface tools available, depending on the data being viewed. You can select chronic conditions or risk factors by demographics and years to retrieve specific Oregon data. Use the tools described below to create data queries tailored to your interests.



Use the buttons to change the display of the table and graphic based on your selection.


A list can be either a drop-down list that expands or collapses or a list that does not expand or collapse. For a drop-down list click to show the list and make a selection. The display of any table or graphic will change based on your selection.

Display Graphics

Information presented in the CCDP are tables, line graphs, bar graphs and text notes. Any specific topic or data source may present information using different combinations of these methods. It is important to read the title of the graph or table.

Bar graphs: Usually used to present a single year of data for a specific demographic selection with a single chronic condition or risk factor.

Line graphs: Usually used to present the trend over time for a single chronic condition or risk factor. The information displayed is usually the overall total (not demographic subgroup).

Tables: Usually used to present the actual data over time. The rows are time and the columns are demographic selections. The full display of the table will usually only display a single chronic condition or risk factor.

Text notes: Text notes provide additional information.For both bar and line graphs you can hover your mouse arrow to see additional information about the data. In the example to the right, the line graph does not display the actual numbers for a year but when you hover over a year you can get the full information, including the number of people affected by a condition or risk factor.


Age-adjusted: Age-adjusting is a way to make fairer comparisons between groups with different age distributions. For example, a county with a higher percentage of older people may have a higher rate of death or hospitalization. Age-adjustment can make the different groups more comparable.

Aggregated: In public health we can aggregate (combine) information prior to making data available. For example, annual hospitalization data are presented as a total instead of individual hospitalizations. Aggregation provides the information needed for decision making while protecting the confidential information in the data source.

Chronic condition (disease): A chronic condition (disease) is a condition lasting three or more months (defined by the U.S. National Center for Health Statistics).

Confidential data: In public health, confidential data are not reported publicly to protect personal and/or health information of individuals. Even in de-identified and aggregate data, an individual could be identified if data included too many demographics for a small geographic area. Therefore, measures are taken to ensure the protection of an individual’s privacy and confidentiality.

De-identified: De-identification is a process used to prevent a person’s identity from being linked to other information, such as having a chronic condition. Common methods for de-identifying data are to remove name, date of birth, ZIP code, personal identifiers and other information from a data set.

Denominator: The lower part of a fraction used for calculating a rate or ratio. In practice, a denominator in public health is the population from which the numerator was drawn. For example, when looking at the rate of Oregon adults with diabetes, the numerator is the number of people with diabetes and the denominator is the full adult population of Oregon.

Demographics: Characteristics of a population used in statistics. Examples include age, sex, education level, income and marital status.

Incidence: The number of new cases in a given population at risk in a given time frame.

Number of events: The estimated count of events (such as hospitalization) among a specific group of people with defined demographic or other characteristics.

Number of people affected (at risk): Also called “the number of people” or “number of adults”. This measures the estimated number of people with a condition, risk factor or other health-related status of interest.

Numerator: The upper part of a fraction used for calculating a rate or ratio. In practice, a numerator in public health is the population who have developed a condition or behavior of interest, such as heart disease or alcohol use.

Prevalence: The proportion of cases, both existing and new, in the population at risk during a point in time. An example of prevalence is the percent of the population who had a chronic condition in 2018.

Protective factor: Protective factors are any characteristics or exposures that decrease the likelihood of developing a chronic condition. Protective factors include physical activity, healthy eating, health screenings, etc.

Rate: A rate is a measure of the frequency an event occurs in a defined population. For example, number of deaths per 100,000 Oregonians in one year. A rate usually has a time frame.

Risk factor: A characteristic or exposure that increases the likelihood of developing a chronic condition. Examples include smoking, lacking health insurance or having pre-diabetes.

Unadjusted: Unadjusted, also called crude, estimates are those that are not adjusted for the characteristics of a population. Unadjusted estimates represent the burden of a condition in a given time period for a given population.​ Unadjusted estimates are not recommended for comparisons across groups.

Do the data behind the graphics include confidential or sensitive information?

All the data in the CCDP system are de-identified and aggregated, which means that it cannot be used to identify any individual person. Additionally, all the data in the CCDP are publicly available.

Can I download the data from a table or graphic?

The CCDP currently doesn’t allow for downloading data. To learn more about a table's or graphic's data source click on the link provided for the data source on the page.

How do I print a report?

You can print or PDF a view of a report by using your internet browser’s built-in print options. It is suggested you print preview first to make sure you are getting the print view you want.

Why does my display sometimes go blank unless I move my mouse arrow over the graph or table?

For some internet browsers there are known issues. Try switching internet browsers to eliminate this problem.

Why can’t I find the data I want?

Not all data are available in the CCDP. If there are additional data you need, please contact us at​


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