| Hospital Specific Reports |
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| Stroke |
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Oregon 2004
A stroke occurs when a blood vessel (artery) that supplies blood to the brain bursts or is blocked by a blood clot. Within minutes, the nerve cells in that area of the brain are damaged, and they may die within a few hours. As a result, the part of the body controlled by the damaged section of the brain cannot function properly. If medical treatment begins soon after symptoms are noticed, fewer brain cells may be permanently damaged.
See Healthwise for additional information on stroke.
*Adapted with permission from Healthwise® Knowledgebase, © 1995-2005 Healthwise, Incorporated, P.O. Box 1989, Boise, Idaho 83701. ALL RIGHTS RESERVED
| What do these indicators mean? |
Volume. In contrast with some of the surgical procedures included in this report, volume is not reported for conditions. Please refer to the background information for more information on volume indicators.
Death Rate. The stroke death rate is the percent of patients admitted for stroke who died in the hospital.
However, some patients are sicker or more difficult to treat, and some hospitals admit more of these complex patients than others. Each hospital’s death rate is adjusted to help account for differences in these factors, but keep in mind that the adjustment is not perfect. The adjusteddeath rate is presented in the displays that follow.
The average death rate for stroke in the United States was 10.8% in 2002. In Oregon, the death rate was 12.7% in 2004. This report uses the statewide average as the reference rate.
Horizontal lines are displayed with each hospital rate. These lines represent the amount of random variation or “noise” in the data. If the gray line crosses the state average, the hospital rate is “within the margin of error” and therefore not statistically different than the state average for this procedure. The margin of error is wider for hospitals with fewer stroke patients.
| What do the symbols mean? |
The symbols on this chart tell you which differences are large enough to be considered “statistically significant,” or outside the “margin of error”. Statistical differences are based on the margin of errors described above.
- If a hospital’s rate is significantly lower than the state average, it gets a plus symbol
- If a hospital’s rate is significantly higher than the state average, it gets a cross symbol
- If a hospital’s rate is statistically neither higher nor lower than the state average (within the margin of error), no symbol is shown.
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| Stroke Death Rate |
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Oregon 2004
The symbols on this chart tell you which differences are outside the margin of error:
Lower than the state average
Higher than the state average
No symbol The hospital’s rate is within the margin of error and therefore not statistically different than the state average for this condition
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Additional Notes
- Number of stroke patients appears in parentheses. Hospitals not shown admitted fewer than 30 stroke patients in 2004.
- Rates have been adjusted for age, sex, and Risk of death
- Applies to adults 18 years of age and older.
- See Technical Documentation for more detail
- Hospitals that submitted additional information about their death rates are listed below each graph; click on the hospital name to access their comments.
- Lower rates may represent better quality.
The following hospitals provided comments regarding these figures:
*National data source: National rate is from 2002 Nationwide Inpatient Sample (NIS). Available at http://hcup.ahrq.gov/HCUPnet.asp.
Number of cases in parentheses. Hospitals not shown had fewer than 30 cases in the reporting year.
Horizontal lines represent the margin of error (based on 95% confidence intervals)
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The following hospitals provided comments regarding these figures:
*National data source: National rate is from 2002 Nationwide Inpatient Sample (NIS).
Number of cases in parentheses. Hospitals not shown had fewer than 30 cases in the reporting year.
Horizontal lines represent the margin of error (based on 95% confidence intervals)
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The following hospitals provided comments regarding these figures:
*National data source: National rate is from 2002 Nationwide Inpatient Sample (NIS).
Number of cases in parentheses. Hospitals not shown had fewer than 30 cases in the reporting year.
Horizontal lines represent the margin of error (based on 95% confidence intervals)
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The following hospitals provided comments regarding these figures:
*National data source: National rate is from 2002 Nationwide Inpatient Sample (NIS).
Number of cases in parentheses. Hospitals not shown had fewer than 30 cases in the reporting year.
Horizontal lines represent the margin of error (based on 95% confidence intervals)
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The following hospitals provided comments regarding these figures:
*National data source: National rate is from 2002 Nationwide Inpatient Sample (NIS).
Number of cases in parentheses. Hospitals not shown had fewer than 30 cases in the reporting year.
Horizontal lines represent the margin of error (based on 95% confidence intervals)
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The following hospitals provided comments regarding these figures:
*National data source: National rate is from 2002 Nationwide Inpatient Sample (NIS).
Number of cases in parentheses. Hospitals not shown had fewer than 30 cases in the reporting year.
Horizontal lines represent the margin of error (based on 95% confidence intervals)
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