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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.
 
SEX - Sex of the patient
 
Documentation Sections:
General Notes
Uniform Values
State Specific Notes
General Notes
 

The sex of the patient (SEX) is provided by the data source. All non-male, no-female (e.g., "other") values are set to missing (.).

If SEX is inconsistent with diagnoses (DE1nn) or procedures (DE2nn), SEX is set to inconsistent (.C).

Beginning in 1998, this information is retained in the data element FEMALE.

 
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Uniform Values
VariableDescriptionValueValue Description
SEXSex of the patient1Male
2Female
.Missing
.AInvalid
.BUnavailable from source (coded in 1988-1997 data only)
.CInconsistent: ED1nn, ED2nn
 
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State Specific Notes

Colorado

According to the documentation available from the source, "Other/Unknown" includes patients undergoing sex changes, undetermined sex, live births with congenital abnormalities, and patients whose sex was unavailable from any source document.

The source value for "Other/Unknown" was recoded to missing (.), during HCUP processing of 1988 1992 discharges. Beginning in 1993, "Other/Unknown" was recoded to invalid (.A) during HCUP processing.



Florida

Beginning in 1997, Florida reports an "Other" sex category. These values are included under missing (.).



Pennsylvania

In addition to the usual sex categories, the source reports an "Other/Unknown" sex category. These values are included under missing (.).


 
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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/sex/nisnote.jsp.
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Last modified 9/17/08