| Age adjusted Rate: |
a type of rate used specifically to make comparisons. An age adjusted rate is calculated by a
weighting procedure where differing populations are made comparable by age. |
| Crude rate: |
an expression of occurrence of an event per a predetermined amount of people, such as per 1000
people. (# of occurrences / population) * predetermined amount of people. |
| Illinois Health Data Dissemination Initiative (IHDDI): |
a state-wide effort to make public health information more widely available on-line. The IHDDI
combines activities of the Health Data Task Force created by PA 95-0418 and a CDC funded project to improve public
access to data through an expanded and improved web-based data query system (WDQS). |
| Metadata: |
a compilation of information about an indicator that includes, but not limited to, indicator descriptions, source, contact information, timeframe, etc. |
| Illinois Project for Local Assessment of Needs (IPLAN): |
a community health assessment and planning process that is conducted every five years by local
health jurisdictions in Illinois. |
| Health indicators: |
measurable events and/or occurrences that are chosen from the IQuery Health category options. |
| Geographic area: |
the location where a health indicator was reported to have occurred. Some indicators may be
available at a city-or township level while most will be provided at a county/health dept level, but may be
aggregated to a regional and/or statewide level. |
| Unknown: |
within IQuery, when a health indicator is reported without a definitive location the
resulting geographic area can only be found in the "unknown" category. |
| Count: |
the reported frequency of incidence/occurrence of a chosen health indicator. |
| Confidence Interval: |
Calculation of confidence intervals is a strategy to provide the end user with a
more accurate interpretation of the results. The width of the confidence interval
provides a good picture of the potential variability in the results. It is used
frequently in public data reporting to indicate that results should not be compared
given the range of randomness (e.g., rural vs urban results for a specific condition
or event, such as mortality rates). It is a measure of whether or not the results
seen are within the range one could expect given the cell size. The smaller the
number of cases in the numerator and denominator the greater the width of the
confidence interval. If the result falls outside of the confidence interval one
cannot be confident that it is not the result of randomness. |
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