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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.
 
S_HOSP_S - Number of sample hospitals in STRAT_ST
 
Documentation Sections:
General Notes
Uniform Values
State Specific Notes
General Notes
 

S_HOSP_S contains the number of sampled state hospitals in the strata (STRAT_ST). Beginning in the 1998 NIS, this data element is not included in the data set.

This variable is missing for zero-weight hospitals (see the File Composition for the Nationwide Inpatient Sample for a definition of zero-weight hospitals). Zero-weight hospitals are included in the 1988-1992 data for NIS, Release 1. Because relatively few hospitals were affected and the complexity of including these hospitals entailed considerable processing burden and costs, no zero-weight hospitals are included in the NIS after 1992.

 
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Uniform Values
VariableDescriptionValueValue Description
S_HOSP_SNumber of sample hospitals in STRAT_STnnNumber of sample hospitals in STRAT_ST
 
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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/s_hosp_s/nisnote.jsp.
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Last modified 9/17/08