FAQ and References
8.0 Frequently Asked Questions
WISQARSTM (Web-based Injury Statistics Query and Reporting System, pronounced "whiskers")
NVDRS (National Violent Death Reporting System) is an interactive database system that provides data on violent
incidents and violent deaths useful for research, public education, and for making informed public health decisions.
Centers for Disease Control and Prevention, National Center for Injury Prevention and Control. Web-based Injury
Statistics Query and Reporting System (WISQARS) [online]. (2008). Available from URL:
NVDRS is a surveillance system that collects data on violent deaths from a variety of
sources, including death certificates, law enforcement reports, medical examiner
and coroner reports, and crime laboratories. Individually, these sources provide
fragmented data that explain violence only in a narrow context. Together, these
sources offer a more comprehensive picture of the circumstances surrounding a
violent death. As a result, NVDRS provides insight into the optimal points for
intervention, thus improving violence prevention efforts.
The violent death data provided in WISQARS NVDRS will be updated once a year, usually in the
fall. At that time, data from the previous year will be added. Also, data on
circumstances and other characteristics for deaths that occurred in earlier
years will also be updated. Therefore, after an update is completed, the
numbers of deaths reported in WISQARS NVDRS for years prior to the update may
change, thus affecting previous reports that were generated based on data prior
to the update.
CDC commonly publishes NVDRS data using the abstracter assigned manner of death. CDC encourages the use of this mode because the manner assigned is based on information from all available data sources. Also, some of the more detailed data on the characteristics (suspect characteristics, specific mechanisms, victim-suspect relationship, place of injury, homeless status, military status, pregnancy status) and circumstances of the violent injury incident are relevant only to this mode.
WISQARS NVDRS offers data by ICD-10 underlying cause of death codes for those who want to compare
violent death counts and rates with those based on death certificate data
from the National Vital Statistics Data System operated by the National
Center for Health Statistics or from individual States.
At the bottom of the user interface on the left-hand side is a Select Report Format option. The user has four output options:
- MS Word
The HTML format is the default, but the user can select any of the other formats. To download the data requested,
the user should select the Spreadsheet option.
Where can I get additional information on NVDRS?
Content Source: National Center for
Injury Prevention and Control, Office of Statistics and Programming
Page last modified:November 18, 2008