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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.
 
N_DISC_U - Number of discharges in the universe for the stratum
 
Documentation Sections:
General Notes
Uniform Values
State Specific Notes
General Notes
 

The definition of N_DISC_U differs by HCUP database:

  • For the NIS prior to 2012, N_DISC_U contains the total number of inpatient discharges in the universe of AHA community excluding, non-rehabilitation hospitals for the stratum.
  • For the NIS beginning in 2012, N_DISC_U contains the total number of inpatient discharges in the universe of AHA community excluding non-rehabilitation and long-term acute care (LTAC) hospitals for the stratum.
  • For the NRD, N_DISC_U contains the total number of inpatient discharges in the universe of AHA community excluding non-rehabilitation and LTAC hospitals for the stratum.
  • For the NEDS, N_DISC_U contains the total number of ED visits in the universe of AHA hospital-based emergency departments for the stratum.
 
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Uniform Values
VariableDescriptionValueValue Description
N_DISC_UNumber of discharges in the universe for the stratum7(n)Number of discharges in the universe for the stratum
 
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State Specific Notes
None
 
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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/n_disc_u/nisnote.jsp.
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Last modified 9/17/08