-
hcup-us.ahrq.gov/db/state/sasddist/Introduction_to_SASD.pdf
September 01, 2025 - specific types of ambulatory surgery and outpatient services included in each
SASD vary by State and data year … specific types of ambulatory surgery and outpatient services included in each SASD vary by State
and data year … The SASD are calendar year files for all data years except 2015. … The HCUP data element HOSPITAL_OWNED (starting in data year 2018) and FREESTANDING (from
data year 1998 … The number of DVD-ROMs depends on the State and
year of data.
-
hcup-us.ahrq.gov/db/nation/neds/stats/NEDS_2008_MaskedStats_Core.PDF
January 01, 2008 - 1.57
TOTCHG_ED : Total charge for ED services 23,513,481 4,933,667 100.00 74999.89 1696.79 2484.47
YEAR … : Calendar year 28,447,148 0 2008.00 2008.00 2008.00 0.00
ZIPINC_QRTL : Median household income
national … Statistics Report: NEDS 2008 - Core File
10:09 Tuesday, August 10, 2010 37
Frequency Distribution for YEAR … YEAR Frequency Percent
2008 28,447,148 100.00
please refer to the section on Description of Data … Table YEAR
Table 1
Frequency for ZIPINC_QRTL
Table ZIPINC_QRTL
Table 1
The Univariate Procedure
-
hcup-us.ahrq.gov/db/nation/neds/stats/NEDS_2007v2_MaskedStats_Core.PDF
April 09, 2010 - 2010 3
Means of Continuous Data Elements
Variable / Label N N Miss Minimum Maximum Mean Std Dev
YEAR … : Calendar year 26,627,923 0 2007.00 2007.00 2007.00 0.00
ZIPINC_QRTL : Median household
income national … Statistics Report: NEDS 2007 - Core File
02:09 Friday, April 9, 2010 38
Frequency Distribution for YEAR … Statistics Report: NEDS 2007 - Core File
02:09 Friday, April 9, 2010 38
Frequency Distribution for YEAR … YEAR Frequency Percent
2007 26,627,923 100.00
please refer to the section on Description of Data
-
hcup-us.ahrq.gov/db/nation/neds/stats/NEDS_2007_MaskedStats_Core.PDF
January 01, 2007 - 2009 3
Means of Continuous Data Elements
Variable / Label N N Miss Minimum Maximum Mean Std Dev
YEAR … : Calendar year 26,971,660 0 2007.00 2007.00 2007.00 0.00
ZIPINC_QRTL : Median household
income national … Statistics Report: NEDS 2007 - Core File
15:47 Monday, December 28, 2009 38
Frequency Distribution for YEAR … YEAR Frequency Percent
2007 26,971,660 100.00
please refer to the section on Description of Data … Table YEAR
Table 1
Frequency for ZIPINC_QRTL
Table ZIPINC_QRTL
Table 1
The Univariate Procedure
-
hcup-us.ahrq.gov/reports/ataglance/HCUPMalnutritionHospReport_083018.pdf
August 01, 2018 - This means that a person who is admitted to the hospital multiple times in 1 year will be
counted each … to year. … About the NRD
The HCUP Nationwide Readmissions Database (NRD) is a calendar-year, discharge-level … The database includes discharges for patients with and without repeat
hospital visits in a year and … to year.
-
hcup-us.ahrq.gov/reports/statbriefs/sb204-Most-Expensive-Hospital-Conditions.jsp
May 01, 2016 - This means that a person who is admitted to the hospital multiple times in 1 year will be counted each … sampling frame for the NIS has changed; thus, the number of States contributing to the NIS varies from year … to year. … Expenditures; Aggregate and per Capita Amounts, Annual Percent Change and Percent Distribution: Selected Calendar
-
hcup-us.ahrq.gov/db/nation/nass/NASS_Introduction_2017.jsp
January 01, 2017 - The Nationwide Ambulatory Surgery Sample (NASS) is a calendar-year, encounter-level database constructed … to year. … Number of States, Hospital-Owned Facilities, and Encounters in the NASS by Year
Data Year
States … In-scope procedure categories may change from year to year. … YEAR
Encounter year
Identifiers, synthetic
HOSP_NASS
Unique HCUP NASS hospital number,
-
hcup-us.ahrq.gov/db/nation/nass/NASS_Introduction_2016.jsp
January 01, 2016 - The Nationwide Ambulatory Surgery Sample (NASS) is a calendar-year, encounter-level database constructed … Currently, the NASS is available only for data year 2016. … to year. … YEAR
Encounter year
Hospital characteristics
HOSP_BEDSIZE_CAT
Hospital bed size category … YEAR
Encounter year
Identifiers, synthetic
HOSP_NASS
Unique HCUP NASS hospital number,
-
hcup-us.ahrq.gov/db/nation/nass/2017_NASS_Introduction.pdf
January 01, 2017 - • The Nationwide Ambulatory Surgery Sample (NASS) is a calendar-year, encounter-
level database constructed … to year. … Number of States, Hospital-Owned Facilities, and Encounters in the NASS
by Year
Data
Year States … In-scope procedure categories
may change from year to year. … YEAR Encounter year
Identifiers,
synthetic
HOSP_NASS Unique HCUP NASS hospital number, links to
-
hcup-us.ahrq.gov/pdf/HCUP-State-Data-Application-Kit.pdf
May 31, 2025 - These data elements are in two different formats, depending on the data year:
• 2003–2008: VisitLink … violation of any term of this Agreement to AHRQ without
unreasonable delay and in no case later than 30 calendar … All researchers requesting the “University Researcher, Single Use” HCUP CA SID, SASD, and SEDD data year … accessing or using any part of the “University Researcher, Single Use” HCUP CA State
databases data year … the State of California, if you are ordering
California SID, SASD, and/or SEDD beginning with data year
-
hcup-us.ahrq.gov/db/state/sedddist/Introduction_to_SEDD.pdf
September 01, 2025 - The SEDD are calendar year files for all data years except 2015. … This occurs when a hospital was closed in a previous year or
when the hospital does not report to the … The number of DVD-ROMs depends on the State and
year of data. … of hospitals and types of records
included in each SEDD (e.g., number
of visits and hospitals by year … Elements
• Availability of States Across All Years
• Availability of Data Elements and
Descriptions by Year
-
hcup-us.ahrq.gov/db/nation/kid/reports/CalculatingKIDVariances.pdf
December 16, 2005 - pediatric discharges from community hospitals in the
United States that were open during any part of the calendar … year. … This might be desirable, for example, if the analyst wishes to draw inferences
about a future year or … In a given
year, all possible interactions between such characteristics may not have been observed, … SUDAAN offers public 2-day or 3-day training classes several times each year.
-
hcup-us.ahrq.gov/reports/methods/2005-07.pdf
January 01, 2005 - pediatric discharges from community hospitals in the
United States that were open during any part of the calendar … year. … This might be desirable, for example, if the analyst wishes to draw inferences
about a future year or … In a given
year, all possible interactions between such characteristics may not have been observed, … SUDAAN offers public 2-day or 3-day training classes several times each year.
-
hcup-us.ahrq.gov/datainnovations/clinicaldata/Finalreport100109.jsp
July 01, 2016 - We focused our efforts on collecting laboratory data and POA for calendar year 2008 discharges. … MHA was fortunate to be awarded one of the two-year contracts to add clinical data to administrative … issue was due to our request for a full one-year’s worth of lab data for all inpatients discharged in calendar … year 2008. … The Agency for Healthcare Research and Quality selected MHA to be part of a two-year project that allows
-
hcup-us.ahrq.gov/reports/methods/2016-06.pdf
January 01, 2016 - The NRD contains data from approximately 14 million discharges each year. … Unlike the NIS, the NRD can be used to identify
unique individuals with admissions during a calendar … year. … The NEDS includes about 30 million records a year and supports health care policy and
research on a … Starting in data year 2014, the HCUP State databases include edit flags (HCUP data
elements with “POA
-
hcup-us.ahrq.gov/db/nation/kid/tools/stats/KID_2009_MaskedStats_Hospital.PDF
January 01, 2009 - Total number of discharges
from this hospital in the SID 4,024 97 12.00 121,668.00 8,334.27 10,385.54
YEAR … : Calendar year 4,121 0 2,009.00 2,009.00 2,009.00 0.00
H_CONTRL : Control/ownership of hospital 4,038
-
hcup-us.ahrq.gov/db/nation/neds/stats/NEDS_2006_MaskedStats_Core.PDF
January 01, 2006 - 2.77 1.53
TOTCHG_ED : Total charge for ED services 2.039E7 5565073 25.00 49990.00 1339.09 1908.05
YEAR … : Calendar year 2.595E7 0 2006.00 2006.00 2006.00 0.00
ZIPINC_QRTL : Median household income national … Statistics Report: NEDS 2006 - Core File
12:13 Friday, June 19, 2009 34
Frequency Distribution for YEAR … Statistics Report: NEDS 2006 - Core File
12:13 Friday, June 19, 2009 34
Frequency Distribution for YEAR … YEAR Frequency
Percent
of
Total
2006 25954816 100.00
please refer to the section on Description
-
hcup-us.ahrq.gov/db/nation/neds/stats/NEDS_2006v2_MaskedStats_Core.PDF
April 08, 2010 - 2.80 1.53
TOTCHG_ED : Total charge for ED services 2.039E7 5309547 25.00 49988.00 1333.60 1922.94
YEAR … : Calendar year 2.57E7 0 2006.00 2006.00 2006.00 0.00
ZIPINC_QRTL : Median household income national … Statistics Report: NEDS 2006 - Core File
23:09 Thursday, April 8, 2010 35
Frequency Distribution for YEAR … Statistics Report: NEDS 2006 - Core File
23:09 Thursday, April 8, 2010 35
Frequency Distribution for YEAR … YEAR Frequency
Percent
of
Total
2006 25702597 100.00
please refer to the section on Description
-
hcup-us.ahrq.gov/db/nation/nass/NASS_Introduction_2016.pdf
January 01, 2016 - • The Nationwide Ambulatory Surgery Sample (NASS) is a calendar-year, encounter-
level database constructed … Currently, the NASS is available only for data year 2016. … to year. … YEAR Encounter year
Hospital
characteristics
HOSP_BEDSIZE_CAT Hospital bed size category: (1) 00 … YEAR Encounter year
Identifiers,
synthetic
HOSP_NASS Unique HCUP NASS hospital number, links to
-
hcup-us.ahrq.gov/reports/statbriefs/sb251-Sickle-Cell-Disease-Stays-2016.pdf
January 01, 2016 - 2006 2008 2010 2012 2014 2016
Nu
m
be
r o
f S
ta
ys
W
ith
An
y
SC
D
Di
ag
no
si
s
Year … Census Bureau.26 The value
ranges for the income quartiles vary by year. … to year. … About the NRD
The HCUP Nationwide Readmissions Database (NRD) is a calendar-year, discharge-level … to year.