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WISQARS TM Centers For Disease Control & Prevention National Center for Injury Prevention and Control. Intermediate Injury Prevention August 23-26, 2011 Billings, MT. WISQARS:. W eb-based I njury S tatistics Q uery and R eporting S ystem

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WISQARSTMCenters For Disease Control & PreventionNational Center for Injury Prevention and Control

Intermediate Injury Prevention

August 23-26, 2011

Billings, MT

Billings Area Indian Health Service

  • Web-based Injury Statistics Query and Reporting System
  • Interactive database system that provides customized reports of injury-related data useful for research and for making informed public health decisions.

data sources
Data Sources:

Mortality Data

  • Official state death certificates
    • Compiled by all the states and submitted to the National Center for Health Statistics for the entire country.
  • Population data come from the Bureau of Census.

Morbidity Data

  • Estimates based on weighted data from the U.S. Consumer Product Safety Commission's (CPSC) National Electronic Injury Surveillance System (NEISS).

  • WISQARS does not:
    • Provide date earlier than 1981
    • Provide non-injury data, except what is available on the leading causes of death reports.
  • The data can be selected down to the state level, but you cannot select a specific county or individual tribes.

coding data
Coding Data:
  • Injury death data are assigned an external cause of death code called “E-codes”.
    • Data from 1979-1998 are coded according to the 9th Revision of the International Classification of Diseases (ICD-9)
    • Starting with1999, deaths are coded with the 10th revision, or ICD-10.
      • The ICD-10 has a new coding scheme that is different than the old e-codes, so it is not valid to combine 1999 data with earlier years at this time.

wisqars reports
WISQARS Reports:
  • Fatal Injury Data
  • Non-Fatal Injury Data
  • Violent Death Data (new and limited)

wisqars fatal injury data
WISQARS Fatal Injury Data:
  • Fatal Injury Reports
  • Leading Causes of Death Reports
  • Years of Potential Life Lost (YPLL)
  • Fatal Injury Mapping (New)
fatal injury reports
Fatal Injury Reports:
  • Provides tables of total numbers of injury deaths and rates per 100,000 population.
  • You can request a report to list deaths by
    • Cause and intent of injury
    • State of residence
    • Race
    • Sex
    • Age
    • Year

leading causes of death reports
Leading Causes of Death Reports :
  • Compute the leading causes of death.
  • Tables show the impact of a particular cause of death
  • Highlight the role that injuries play in mortality at different age groups.
  • Report of leading cause of death report by state of residence, race, sex, year or combined years, and number of causes such as 10 leading causes of death.
  • Can select only injuries and create a leading cause of injury death chart.

years of potential life lost ypll
Years of Potential Life Lost (YPLL) :
  • Measure of premature mortality (early death).
  • YPLL provides insight into the impact of injury-related causes of death compared to other causes of death.
  • YPLL is most commonly calculated as the number of years lost before age 65

“65 – Age of Death = YPLL”

  • YPLL can be reported by state of residence, race, sex, and year or combined years.

fatal injury mapping new
Fatal Injury Mapping (New):
  • Interactive mapping module for fatal injury data
  • Can map down to County level

small numbers
Small Numbers:
  • American Indian/Alaska Native population numbers are small
    • You may need to combine years of data to get a more accurate picture
  • The NCHS considers any rate based upon fewer than 20 deaths to be an unstable rate.
    • Having larger numbers to base the rate on gives you more confidence that the rate is representative.

small numbers1
Small Numbers:
  • EXAMPLE - drowning deaths among Alaska Natives during 1999
    • 16 deaths and a rate of 17.3 per 100,000.
    • Because there were fewer than 20 deaths, this rate is considered unstable.
    • To make this information more useful, you would need to combine at least two years of data.
  • WISQARS shows unstable rates colored white with an asterisk (*).
  • The Leading Causes of Death report and YPLL will work best for Native Americans by combining years of data,
    • Three years: 1996, 1997, and 1998.
    • This will give more numbers to look at.
    • For Fatal Injury Reports, if states are chosen, then combining 3 years of data may also be needed depending on the injury cause.


* Rates based on 20 or fewer deaths may be unstable. Use with caution.

wisqars non fatal data
WISQARS Non-Fatal Data:
  • Non-Fatal Injury Reports
  • Leading Causes of Death Reports
wisqars non fatal data1
WISQARS Non-Fatal Data:
  • Limitations
    • No data before 2000
    • Can sort by Race but not select by Race
    • American Indian/Alaskan Native not defined in Non-Fatal data set
wisqars exercise
WISQARS Exercise:
  • Computer Lab
  • Complete worksheet
  • Generate reports, calculate rates, compare injury data using WISQARS Fatal Injury Reports, Leading Cause of Death Reports and Years of Potential Life Lost (YPLL).