-
hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2003_v7.jsp
January 01, 2003 - NIS Data Sources, Hospitals, and Inpatient Stays
State-Specific Restrictions
Contents of CD-ROM Set … states
2003
37 states
On CD-ROM,
in ASCII format
1 year of data in a 2-CD set … One file per data file: Core, Core Subsample #1, Core Subsample #2, Disease Severity Measures, Subsample … One file per data file: Core, Core Subsample #1, Core Subsample #2, Disease Severity Measures, Subsample … One file per data file: Core, Core Subsample #1, Core Subsample #2, Disease Severity Measures, Subsample
-
hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2004.jsp
January 01, 2004 - NIS Data Sources, Hospitals, and Inpatient Stays
State-Specific Restrictions
Contents of CD-ROM Set … states
2004
37 states
On CD-ROM,
in ASCII format
1 year of data in a 2-CD set … One file per data file: Core, Core Subsample #1, Core Subsample #2, Disease Severity Measures, Subsample … One file per data file: Core, Core Subsample #1, Core Subsample #2, Disease Severity Measures, Subsample … One file per data file: Core, Core Subsample #1, Core Subsample #2, Disease Severity Measures, Subsample
-
hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2004.pdf
January 01, 2004 - ............................................................................. 9
Contents of CD-ROM Set … HCUP NIS (11/18/15) 10 Introduction to the HCUP NIS
Contents of CD-ROM Set
There are two types … One file per data file: Core, Core Subsample #1, Core Subsample #2,
Disease Severity Measures, Subsample … One file per data
file: Core, Core Subsample #1, Core Subsample #2, Disease Severity
Measures, Subsample … One file per
data file: Core, Core Subsample #1, Core Subsample #2, Disease Severity
Measures, Subsample
-
hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2005.jsp
January 01, 2005 - NIS Data Sources, Hospitals, and Inpatient Stays
State-Specific Restrictions
Contents of CD-ROM Set … Data Elements in the NIS Inpatient Core Files
Table 4. … in 1988
11 States in 1989-1992
On CD-ROM,
in ASCII format
5 years of data in a 6-CD set … 2000
28 states
2001
33 states
On CD-ROM, in ASCII format
1 year of data in a 2-CD set … Contents of CD-ROM Set
The CD-ROM set contains two CD-ROMs that include fixed-width ASCII formatted
-
hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2005.pdf
January 01, 2005 - ............................................................................. 8
Contents of CD-ROM Set … States in 1988
11 States in 1989-1992
On CD-ROM,
in ASCII format
5 years of data in a 6-CD set … severity measures
2005
37 states
On CD-ROM,
in ASCII format
1 year of data in a 2-CD set … For more information on how hospitals in the data set were mapped to hospitals as defined by the AHA, … In order to facilitate analysis of
tren ds using multiple years of NIS data, an alternate set of NIS
-
hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2011.jsp
January 01, 2011 - Refer to Table 1 in Appendix III for a list of data elements in the Inpatient Core File. … Information from the severity file is to be used in conjunction with the Inpatient Core file. … For example, the load program for the 2011 NIS Core file is linked to "Core File" under "2011 NIS". … The NIS data set includes only the actual (unadjusted) number of observed discharges. … In some cases, AGE is set to the midpoint of the age category.
-
hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2010.jsp
January 01, 2010 - Refer to Table 1 in Appendix III for a list of data elements in the Inpatient Core File. … For example, the load program for the 2010 NIS Core file is linked to "Core File" under "2010 NIS". … The NIS data set includes only the actual (unadjusted) number of observed discharges. … In some cases, AGE is set to the midpoint of the age category. … records
Age in years (AGE) is set to the midpoints of age ranges defined by the data source.
-
hcup-us.ahrq.gov/db/nation/nis/NIS96_Overview_122104.pdf
November 01, 2015 - A SAS program to fix the principal diagnosis on the NIS Core A file
and the complete diagnosis vector … 1988-1992
C 8 States in
1988
On CD-ROM,
in ASCII format
5 years of NIS data in a 26-CD set … Release 4 C 1995
C 19 States
Release 5 C 1996
C 19 States
1 year of data in a 6-CD set … Contents of NIS, Release 5, 1996, on CD-ROM – 6-CD Set
CD #1.
1996, Inpatient Stay Core File A, … linkages to other core files
CD #5.
-
hcup-us.ahrq.gov/db/nation/nis/Introduction_to_NIS_2002.pdf
January 01, 2002 - ............................................................................. 9
Contents of CD-ROM Set … One file per data file: Core, Core Subsample #1, Core Subsample #2,
Disease Severity Measures, Subsample … One file per data
file: Core, Core Subsample #1, Core Subsample #2, Disease Severity
Measures, Subsample … One file per
data file: Core, Core Subsample #1, Core Subsample #2, Disease Severity
Measures, Subsample … At least
one file per data file: Core (weighted and unweighted statistics), Core
Subsample #1, Core
-
hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2002.jsp
January 01, 2002 - NIS Data Sources, Hospitals, and Inpatient Stays
State-Specific Restrictions
Contents of CD-ROM Set … One file per data file: Core, Core Subsample #1, Core Subsample #2, Disease Severity Measures, Subsample … One file per data file: Core, Core Subsample #1, Core Subsample #2, Disease Severity Measures, Subsample … One file per data file: Core, Core Subsample #1, Core Subsample #2, Disease Severity Measures, Subsample … At least one file per data file: Core (weighted and unweighted statistics), Core Subsample #1, Core
-
hcup-us.ahrq.gov/db/nation/nis/2006NIS_INTRODUCTION.pdf
November 01, 2015 - Refer to Table 1 in Appendix III for a list of data elements in the
Inpatient Core File. … The NIS data set includes only the actual (unadjusted)
number of observed discharges. … In some cases, AGE is set to the midpoint of the age category. … the 2006 NIS Inpatient Core files, but are
only available in previous years’ files. … DISCWT10 1998-2004 Discharge weight on 10% subsample
Core file for NIS from 1998 to 2004.
-
hcup-us.ahrq.gov/tech_assist/nationalestimates/508_course/508course_2018.jsp
January 01, 2018 - States for individuals age 65 and over, you must apply a discharge weight to each record in the NIS Core … /nation/nis/trendwghts.jsp , in place of the original discharge weight (DISCWT) included in the NIS core … To produce national or regional estimates of the NEDS data contained in the Core File, you must weight … In each record in the NEDS Core File, the weight is stored in the data element DISCWT. … For the KID, the data elements KID_STRATUM and HOSP_REGION are on the Core file.
-
hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2009.jsp
January 01, 2009 - Refer to Table 1 in Appendix III for a list of data elements in the Inpatient Core File. … For example, the load program for the 2009 NIS Core file is linked to "Core File" under "2009 NIS". … The NIS data set includes only the actual (unadjusted) number of observed discharges. … In some cases, AGE is set to the midpoint of the age category. … in the 2009 NIS Inpatient Core files; but are only available in previous years’ files.
-
hcup-us.ahrq.gov/db/nation/nis/NIS_2008_INTRODUCTION.pdf
January 01, 2008 - Data Elements in the NIS Inpatient Core Files ................................................... 1 … Refer to Table 1 in Appendix III for a list of data elements in the Inpatient Core
File. … In some cases, AGE is set to the midpoint of the age category. … the 2008 NIS Inpatient Core files, but are
only available in previous years’ files. … DISCWT10 1998-2004 Discharge weight on 10% subsample
Core file for NIS from 1998 to 2004.
-
hcup-us.ahrq.gov/db/nation/nis/tools/stats/FILESPC5_1996.PDF
January 01, 1996 - FILE SPECIFICATIONS
NATIONWIDE INPATIENT SAMPLE (NIS), Release 5, 1996
Year Layouts Description Data Set … Name Records Length Bytes
Links to Record Number of Record Number of
1996
2 Full NIS, Inpatient Stay Core … 91 608,412,417
5 Full NIS, Inpatient Stay Core File C NIS96_C.ASC 6,542,069 65 438,318,623
6 Full … NIS, Core File DX (diagnoses) NIS96_DX.ASC 30,236,193 20 665,196,246
7 Full NIS, Core File PR (procedures … 10 Core File (A/B/C) N96S2ABC.ASC 654,207 225 148,504,989
Inpatient Stay Subsample 2
13 Core File
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hcup-us.ahrq.gov/db/nation/nis/tools/stats/FILESPC2_1993.PDF
January 01, 1993 - NATIONWIDE INPATIENT SAMPLE (NIS), RELEASE 2, 1993
Year
Page Numbers:
Record Layouts Description Data Set … Name
Number of
Records
Record
Length
Number of
Bytes
1993
2 Full NIS, Inpatient Stay Core File … A NIS93_A.ASC 6,538,976 95 634,280,672
4 Full NIS, Inpatient Stay Core File B NIS93_B.ASC 6,538,976 … , Core File DX (diagnoses) NIS93_DX.ASC 25,769,405 20 566,926,910
7 Full NIS, Core File PR (procedures … #2
Core File (A/B/C) N93S2ABC.ASC 653,897 212 139,933,958
13 Core File DX (diagnoses) N93S2_DX.ASC
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hcup-us.ahrq.gov/db/nation/nis/tools/stats/FILESPC4_1995.PDF
January 01, 1995 - SPECIFICATIONS
NATIONWIDE INPATIENT SAMPLE (NIS), RELEASE 4, 1995
Year
Links to
Record Layouts Description Data Set … Name
Number of
Records
Record
Length
Number of
Bytes
1995
2 Full NIS, Inpatient Stay Core File … A NIS95_A.ASC 6,714,935 95 651,348,695
4 Full NIS, Inpatient Stay Core File B NIS95_B.ASC 6,714,935 … , Core File DX (diagnoses) NIS95_DX.ASC 29,925,734 20 658,366,148
7 Full NIS, Core File PR (procedures … 2
Core File (A/B/C) N95S2ABC.ASC 671,493 225 152,428,911
13 Core File DX (diagnoses) N95S2_DX.ASC
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hcup-us.ahrq.gov/db/nation/nis/tools/stats/FILESPC3_1994.PDF
January 01, 1994 - SPECIFICATIONS
NATIONWIDE INPATIENT SAMPLE (NIS), RELEASE 3, 1994
Year
Links to
Record Layouts Description Data Set … Name
Number of
Records
Record
Length
Number of
Bytes
1994
2 Full NIS, Inpatient Stay Core File … A NIS94_A.ASC 6,385,011 95 619,346,067
4 Full NIS, Inpatient Stay Core File B NIS94_B.ASC 6,385,011 … , Core File DX (diagnoses) NIS94_DX.ASC 27,117,255 20 596,579,610
7 Full NIS, Core File PR (procedures … 2
Core File (A/B/C) N94S2ABC.ASC 638,501 225 144,939,727
13 Core File DX (diagnoses) N94S2_DX.ASC
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hcup-us.ahrq.gov/db/nation/nis/NIS_2007_INTRODUCTION.pdf
January 01, 2007 - Data Elements in the NIS Inpatient Core Files ................................................... 1 … Refer to Table 1 in Appendix III for a list of data elements in the
Inpatient Core File. … Information from these severity files is to
be used in conjunction with the Inpatient Core files. … In some cases, AGE is set to the midpoint of the age category. … the 2007 NIS Inpatient Core files, but are
only available in previous years’ files.
-
hcup-us.ahrq.gov/db/nation/nis/corrections_2011.jsp
January 01, 2011 - Nationwide Inpatient Sample 2011 Please refer to the information below for corrections to the NIS data set … This error would prevent the Inpatient Core File (NIS_2011_Core) from being correctly merged with the