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| Calculating Costs |
| Report #2021-05 |
HCUP Cost-to-Charge Ratio Methodologies (PDF file, 680 KB; HTML)
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| Report #2011-04 |
Tools for More Accurate Inpatient Cost Estimates with HCUP Databases, 2009 (PDF file, 837 KB)
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| Report #2008-04 |
Calculate Cost Adjustment Factors by APR-DRG and CCS Using Selected States with Detailed Charge (PDF file, 122 KB)
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| Report #2008-03 |
The Cost of Ambulatory Surgery Visits, 2005 (PDF file, 187 KB)
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| Report #2007-05 |
The Cost of "Treat and Release" to Hospital Emergency Departments, 2003 (PDF file, 166 KB)
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| Comparison Reports - Kids’ Inpatient Database (KID) |
| Report #2006-03 |
2003 HCUP KIDS' Inpatient Database (KID) Comparison Report (PDF file, 607 KB)
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| Report #2001-01 |
Comparative Analysis of the HCUP Kids´ Inpatient Database (KID), 1997 (PDF file, 645 KB) |
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| Comparison Reports - National (Nationwide) Inpatient Sample (NIS) |
| Report #2015-04 |
2012 Report (PDF file, 1.1 MB; HTML)
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| Report #2010-03 |
2007 Report (PDF file, 524 KB)
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| Report #2008-01 |
2005 Report (PDF file, 389 KB)
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| Report #2007-03 |
2004 Report (PDF file, 441 KB)
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| Report #2006-09 |
2003 Report (PDF file, 547 KB)
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| Report #2005-03 |
2002 Report (PDF file, 644 KB) |
| Report #2004-04 |
2001 Report (PDF file, 1,076 KB) |
| Report #2003-01 |
2000 Report (PDF file, 991 KB) |
| Report #2002-02 |
1999 Report (PDF file, 1,117 KB) |
| Report #2000-01 |
1997 Report (PDF file, 340 KB) |
| Report #1998-01 |
1995 Report (PDF file, 284 KB) |
| Report #1997-01 |
1993 Report (PDF file, 301 KB) |
| Report #1996-01 |
1988-1992 Report (PDF file, 436 KB) |
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| Diagnosis Present-on-Admission Indicators |
| Report #2015-06 |
Examination of the Coding of Present-on-Admission Indicators in Healthcare Cost and Utilization Project (HCUP) State Inpatient Databases (SID) (PDF file, 756 KB) |
| Report #2011-05 |
The Case for the POA Indicator: Update 2011 (PDF file, 418 KB) |
| Report #2006-01 |
The Case for the Present-on-Admission (POA) Indicator (PDF file, 246 KB)
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| Enhancing Administrative Data |
| Report #2010-01 |
Enhancing Clinical Information in Statewide Hospital Administrative Data: Project Summary and Lessons Learned (PDF file, 248 KB)
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| Report #2006-02 |
Final PNUM Linkage Variable Report of the State Databases Available Through the HCUP Central Distributor, 2003 (PDF file, 224 KB)
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| Estimating Trends (NIS and KID) |
| Report #2007-02 |
Using the KIDS' Inpatient Database (KID) to Estimate Trends (PDF file, 360 KB)
Trends Weights for the 1997 HCUP KID Data
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| Report #2006-05 |
Using the HCUP Nationwide Inpatient Sample to Estimate Trends (PDF file, 1.0 MB)
Trend Weights for 1988-1997 HCUP NIS Data (Link to downloadable weights files) |
| Report #2005-01 |
Using the HCUP Nationwide Inpatient Sample to Estimate Trends (1988-2002) (PDF file, 830 KB)
Trend Weights for 1988-1997 HCUP NIS Data (Link to downloadable weights files)
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| Evaluations - Emergency Department Data |
| Report #2016-08 |
State Variation in Procedure Coding in the HCUP State Emergency Department Databases (PDF file, 390 KB)
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| Report #2016-07 |
Challenges to Studying Patients Transferred Between Hospitals (PDF file, 739 KB)
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| Report #2011-03 |
Special Study on the Meaning of the First-Listed Diagnosis on Emergency Department and Ambulatory Surgery Records (PDF file, 1 MB)
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| Report #2005-02 |
Emergency Department Data Evaluation (PDF file, 752 KB) |
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| Evaluations - Other |
| Report #2019-04 |
Conducting County-Level Analyses With HCUP Data: Approaches and Methodological Considerations (PDF file, 738 KB)
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| Report #2016-07 |
Challenges to Studying Patients Transferred Between Hospitals (PDF file, 739 KB)
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| Report #2016-03 |
HCUP External Cause of Injury Code (E Code) Evaluation Report (Updated with 2013 HCUP Data) (PDF file, 490 KB)
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| Report #2016-02 |
Impact of ICD-10-CM/PCS on Research Using Administrative Databases (PDF file, 1.2 MB)
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| Report #2015-03 |
HCUP External Cause of Injury (E Code) Evaluation Report (Updated with 2012 HCUP Data) (PDF file, 429 KB)
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| Report #2014-01 |
HCUP External Cause of Injury (E Code) Evaluation Report (Updated with 2011 HCUP Data) (PDF file, 297 KB)
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| Report #2013-02 |
HCUP External Cause of Injury (E Code) Evaluation Report (Updated with 2010 HCUP Data) (PDF file, 227 KB)
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| Report #2008-02 |
Patient Safety in Hospitals in 2004: Toward Understanding Variation Across States (PDF file, 459 KB)
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| Report #2004-06 |
HCUP External Cause of Injury (E Code) Evaluation Report (2001 HCUP Data) (PDF file, 897 KB)
HCUP E Code Evaluation Addendum - Updated Information for 2009 (PDF file, 159 KB)
HCUP E Code Evaluation Addendum - Updated Information for 2006 and 2008 (PDF file, 135 KB)
HCUP E Code Evaluation Report - Appendix D (PDF file, 486 KB)
HCUP E Code Evaluation Report - Appendix E (PDF file, 463 KB)
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| Evaluations - State Ambulatory Surgery and Services Databases |
| Report #2011-07 |
2009 Report (PDF file, 756 KB) |
| Report #2011-03 |
Special Study on the Meaning of the First-Listed Diagnosis on Emergency Department and Ambulatory Surgery Records (PDF file, 1 MB)
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| Report #2011-02 |
2008 Report (PDF file, 767 KB)
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| Report #2010-04 |
2007 Report (PDF file, 903 KB)
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| Report #2009-03 |
2006 Report (PDF file, 248 KB)
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| Report #2008-08 |
2005 Report (PDF file, 526 KB)
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| Report #2007-04 |
2004 Report (PDF file, 356 KB)
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| Report #2006-10 |
2003 Report (PDF file, 316 KB)
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| Report #2005-04 |
2002 Report (PDF file, 253 KB) |
| Report #2004-03 |
2001 Report (PDF file, 489 KB) |
| Report #2003-03 |
1999 Report (PDF file, 419 KB) |
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| Expected Payer |
| Report #2022-02 |
User Guide: An Examination of Expected Payer Coding in HCUP Databases (Updated for 2020 HCUP Data) (PDF file, 632 KB)
Supplements 1-3 (PDF file, 1.02 MB)
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| Report #2021-01 |
User Guide: An Examination of Expected Payer Coding in HCUP Databases (Updated for 2019 HCUP Data) (PDF file, 657 KB; HTML)
Supplements 1-3 (PDF file, 1.0 MB; HTML)
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| Report #2020-03 |
An Examination of Ambiguous Source Payer Codes Among Individuals Aged 65+ Years in HCUP Data: Final Report (PDF file, 757 KB)
Supplements 1-6 (PDF file, 706 KB)
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| Report #2020-01 |
User Guide: An Examination of Expected Payer Coding in HCUP Databases (Updated for 2018 HCUP Data) (PDF file, 719 KB)
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| Report #2019-03 |
User Guide: An Examination of Expected Payer Coding in HCUP Databases (Updated for 2017 HCUP Data (PDF file, 607 KB)
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| Report #2018-04 |
User Guide: An Examination of Expected Payer Coding in HCUP Databases (Updated for 2016 HCUP Data) (PDF file, 559 KB)
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| Report #2018-02 |
An Examination of CHIP and Medicaid Expected Payer Coding in HCUP Databases (PDF file, 488 KB)
Supplement 1-2 (PDF file, 546 KB)
Supplement 3 (PDF file, 301 KB; Excel file, 54 KB)
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| Report #2017-05 |
User Guide: An Examination of Expected Payer Coding in HCUP Databases (Updated for 2015 HCUP Data) (PDF file, 367 KB)
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| Report #2016-09 |
User Guide - An Examination of Expected Payer Coding in HCUP Databases (Updated for 2014 HCUP Data) (PDF file, 275 KB)
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| Report #2015-08 |
User Guide - An Examination of Expected Payer Coding in HCUP Databases (Updated for 2013 HCUP Data) (PDF file, 542 KB)
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| Report #2014-03 |
User Guide - An Examination of Expected Payer Coding in HCUP Databases (PDF file, 557 KB)
An Examination of Expected Payer Coding in HCUP Databases (PDF file, 1.3 MB)
Supplement 4 (PDF file, 502 KB; Excel file, 156 KB)
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| HCUP Methods for National Healthcare Quality and Disparities Report |
| Report #2024-01 |
Methods Applying AHRQ Quality Indicators to Healthcare Cost and Utilization Project (HCUP) Data for the 2024 National Healthcare Quality and Disparities Report (NHQDR) (PDF file, 1.6 MB)
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| Report #2023-01 |
Methods Applying AHRQ Quality Indicators to Healthcare Cost and Utilization Project (HCUP) Data for the 2023 National Healthcare Quality and Disparities Report (NHQDR) (PDF file, 1.1 MB)
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| Report #2022-01 |
Methods Applying AHRQ Quality Indicators to Healthcare Cost and Utilization Project (HCUP) Data for the 2022 National Healthcare Quality and Disparities Report (NHQDR) (PDF file, 1.1 MB; HTML)
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| Report #2021-03 |
Methods Applying AHRQ Quality Indicators to Healthcare Cost and Utilization Project (HCUP) Data for the 2021 National Healthcare Quality and Disparities Report (NHQDR) (PDF file, 4.4 MB; HTML)
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| Report #2020-04 |
Methods Applying AHRQ Quality Indicators to Healthcare Cost and Utilization Project (HCUP) Data for the 2019 National Healthcare Quality and Disparities Report (NHQDR) (PDF file, 1.3 MB)
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| Report #2019-01 |
Methods Applying AHRQ Quality Indicators to Healthcare Cost and Utilization Project (HCUP) Data for the 2018 National Healthcare Quality and Disparities Report (QDR) (PDF file, 1.1 MB)
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| Report #2018-01 |
Methods Applying AHRQ Quality Indicators to Healthcare Cost and Utilization Project (HCUP) Data for the 2017 National Healthcare Quality and Disparities Report (QDR) (PDF file, 585 KB)
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| Report #2017-03 |
Methods Applying AHRQ Quality Indicators to Healthcare Cost and Utilization Project (HCUP) Data for the 2016 National Healthcare Quality and Disparities Report (QDR) (PDF file, 603 KB)
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| Report #2016-01 |
Methods Applying AHRQ Quality Indicators to Healthcare Cost and Utilization Project (HCUP) Data for the 2015 National Healthcare Quality and Disparities Report (QDR) (PDF file, 992 KB)
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| Report #2015-02 |
Methods Applying AHRQ Quality Indicators to Healthcare Cost and Utilization Project (HCUP) Data for the 2014 National Healthcare Quality and Disparities Report (QDR) (PDF file, 491 KB)
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| Report #2012-03 |
Eleventh (2013) Quality and Disparities Report (PDF file, 458 KB; HTML)
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| Report #2012-02 |
Tenth (2012) Quality and Disparities Report (PDF file, 134 KB; HTML)
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| Report #2011-06 |
Ninth (2011) Quality and Disparities Report (PDF file, 367 KB) |
| Report #2010-06 |
Eighth (2010) Quality and Disparities Report (PDF file, 623 KB) |
| Report #2009-02 |
Seventh (2009) Disparities Report (PDF file, 248 KB) |
| Report #2008-06 |
Sixth (2008) Disparities Report (PDF file, 149 KB)
Addendum to Sixth (2008) Disparities Report (PDF file, 33 KB)
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| Report #2008-05 |
Sixth (2008) Quality Report (PDF file, 172 KB) |
| Report #2007-07 |
Fifth (2007) Disparities Report (PDF file, 508 KB)
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| Report #2007-06 |
Fifth (2007) Quality Report (PDF file, 428 KB)
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| Report #2006-08 |
Fourth (2006) Disparities Report (PDF file, 185 KB)
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| Report #2006-07 |
Fourth (2006) Quality Report (PDF file, 212 KB) |
| Report #2005-06 |
Third (2005) Disparities Report (PDF file, 186 KB) |
| Report #2005-05 |
Third (2005) Quality Report (PDF file, 282 KB) |
| Report #2004-07 |
Second (2004) Quality Report (PDF file, 414 KB) |
| Report #2004-05 |
Second (2004) Disparities Report (PDF file, 433 KB) |
| Report #2003-05 |
First (2003) Quality Report (PDF file, 490 KB) |
| Report #2003-04 |
First (2003) Disparities Report (PDF file, 674 KB) |
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| HCUP Tool Development |
| Report #2006-04 |
Development of Utilization Flags for Use with UB-92 Administrative Data (PDF file, 258 KB)
Appendices: A-F (PDF file, 452 KB)
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| Report #2004-02 |
Clinical Classifications Software Documentation (PDF file, 355 KB) |
| Report #2004-01 |
Comorbidity Software Documentation (PDF file, 583 KB; HTML) |
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| Observation Services |
| Report #2016-05 |
Identifying Observation Services in the Healthcare Cost and Utilization Project (HCUP) State Databases (Updated with 2013 HCUP Data) (PDF file, 440 KB)
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| Report #2015-05 |
Identifying Observation Services in the Healthcare Cost and Utilization Project (HCUP) State Databases (PDF file, 647 KB) |
| Report #2002-03 |
Observation Status Related to U.S. Hospital Records (PDF file, 469 KB) |
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| Population Denominator Data for Use with HCUP Databases |
| Report #2022-03 |
Population Denominator Data Sources and Data for Use with HCUP Databases (Updated with 2021 Population Data) (PDF file, 680 KB)
Appendix (Excel file, 292 KB)
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| Report #2021-04 |
Population Denominator Data Sources and Data for Use with HCUP Databases (Updated with 2020 Population Data) (PDF file, 812 KB; HTML)
Appendix (Excel file, 290 KB)
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| Report #2020-02 |
Population Denominator Data Sources and Data for Use with HCUP Databases (Updated with 2019 Population Data) (PDF file, 668 KB)
Appendix A: Population Data Tables (Excel file, 287 KB)
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| Report #2019-02 |
Population Denominator Data Sources and Data for Use with HCUP Databases (Updated with 2018 Population Data) (PDF file, 882 KB)
Appendix A: Population Data Tables (Excel file, 358 KB)
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| Report #2018-03 |
Population Denominator Data Sources and Data for Use with HCUP Databases (Updated with 2017 Population Data) (PDF file, 359 KB)
Appendix A: Population Data Tables (Excel file, 255 KB)
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| Report #2017-04 |
Population Denominator Data for Use with the HCUP Databases (Updated with 2016 Population Data) (PDF file, 477 KB)
Appendix A Population Data Tables (in ZIP format for downloading)
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| Report #2016-04 |
Population Denominator Data for Use with the HCUP Databases (Updated with 2015 Population Data) (PDF file, 375 KB)
Appendix A Population Data Tables (in ZIP format for downloading)
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| Report #2015-07 |
Population Denominator Data for Use with the HCUP Databases (Updated with 2014 Population Data) (PDF file, 617 KB)
Appendix A Population Data Tables (in ZIP format for downloading)
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| Report #2014-02 |
Population Denominator Data for Use with the HCUP Databases (Updated with 2013 Population Data) (PDF file, 538 KB)
Appendix A Population Data Tables (in ZIP format for downloading)
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| Report #2013-01 |
Population Denominator Data for use with HCUP Databases (Updated with 2012 Population data) (PDF file, 338 KB)
Appendix A Population Data Tables (in ZIP format for downloading)
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| Report #2012-01 |
Population Denominator Data for use with HCUP Databases (Updated with 2010 Population data) (PDF file, 436 KB)
Appendix A Population Data Tables (in ZIP format for downloading)
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| Report #2010-02 |
Population Denominator Data for Use with the
HCUP Databases (Updated with 2009 Population Data) (PDF file, 353 KB)
Appendix A (in ZIP format for downloading)
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| Report #2008-07 |
Population Denominator Data for Use with the HCUP Databases (Updated) (PDF file, 248 KB)
Census Population Data Tables, 1990-2007 (in ZIP format for downloading)
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| Report #2006-06 |
Updated population information available under Method Series Report 2008-07
Population Denominator Data for Use with the HCUP Databases (PDF file, 285 KB)
Census Population Data Tables, 1990-2005 (in ZIP format for downloading)
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| Readmission and Revisit Analyses |
| Report #2012-04 |
Overview of Key Readmission Measures and Methods (PDF file, 348 KB)
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| Report #2011-01 |
Methodological Issues when Studying Readmissions and Revisits using Hospital Administrative Data (PDF file, 301 KB)
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| Statistical Methods |
| Report #2021-02 |
Methods for Calculating Patient Travel Distance to Hospital in HCUP Data (PDF file, 1.3 MB; HTML)
Supplements 1-3 (Excel file, 136 KB)
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| Report #2017-02 |
Feasibility Report on Redesigning the Nationwide Emergency Department Sample (NEDS) (PDF file, 770 KB)
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| Report #2017-01 |
Calculating Nationwide Readmissions Database (NRD) Variances (PDF file, 325 KB)
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| Report #2016-06 |
Using the HCUP Databases to Study Incidence and Prevalence (PDF file, 282 KB)
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| Report #2015-09 |
Calculating National Inpatient Sample (NIS) Variances for Data Years 2012 and Later (PDF file, 565 KB; HTML)
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| Report #2015-01 |
Missing Data Methods for the NIS and the SID (PDF file, 871 KB)
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| Report #2014-04 |
Nationwide Inpatient Sample (NIS) Redesign Final Report (PDF file, 2.0 MB)
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| Report #2010-05 |
Inferences with HCUP State Databases Final Report (PDF file, 215 KB)
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| Report #2007-01 |
Hierarchical Modeling Using HCUP Data (PDF file, 580 KB)
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| Report #2005-07 |
Calculating Kids' Inpatient Database (KID) Variances (PDF file, 322 KB) |
| Report #2003-02 |
Calculating Nationwide Inpatient Sample (NIS) Variances for Data Years 2011 and Earlier (PDF file, 642 KB; HTML) |
| Report #2002-01 |
Changes in the NIS Sampling and Weighting Strategy for 1998 (PDF file, 1,430 KB) |
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