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NIS Description of Data Elements
The NIS is set of longitudinal hospital inpatient databases included in the HCUP family. These databases are created by AHRQ through a Federal-State-Industry partnership.
 
RACE - Race
 
Documentation Sections:
General Notes
Uniform Values
State Specific Notes
General Notes
 

HCUP coding includes race and ethnicity in one data element (RACE). If the source supplied race and ethnicity in separate data elements, ethnicity takes precedence over race in setting the HCUP value for race.

Two HCUP data elements contain source-specific information about the race and ethnicity of the patient.

  • RACE_X retains information on the race of the patient as provided by the data source.
  • HISPANIC_X retains information on the Hispanic ethnicity as provided by the data source.

Not all data sources provide information on race (RACE_X) and ethnicity (HISPANIC_X).

RACE_X and HISPANIC_X are not available on the HCUP National (Nationwide) Inpatient Sample (NIS), Kids' Inpatient Database (KID), and the Nationwide Emergency Department Sample (NEDS).

 
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Uniform Values
VariableDescriptionValueValue Description
RACERace1White
2Black
3Hispanic
4Asian or Pacific Islander
5Native American
6Other
.Missing
.AInvalid
.BUnavailable from source (coded in 1988-1997 data only)
 
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State Specific Notes

North Dakota
North Dakota
RACE_X RACE
Value Description Value Description
R5 White/Caucasian 1 White
R3 Black or African American 2 Black
If HISPANIC_X = "E1" 3 Hispanic
R4 Native Hawaiian of Pacific Islander 4 Asian or Pacific Islander
R2 Asian
R1 American Indian or Alaska Native 5 Native American
R9 Other Race/Multiple Races 6 Other
RZ Unknown/Not Provided . Missing
Blank  
Other   .A Invalid
HISPANIC_X
E1 Hispanic or Latino
E2 Non-Hispanic or Latino
EY Decline to state
Blank   . Missing
Other   .A Invalid

 
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Internet Citation: HCUP NIS Description of Data Elements. Healthcare Cost and Utilization Project (HCUP). September 2008. Agency for Healthcare Research and Quality, Rockville, MD. www.hcup-us.ahrq.gov/db/vars/race/nisnote.jsp.
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Last modified 9/17/08