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NRD Summary Statistics

The following links provide summary statistics for the Nationwide Readmissions Database (NRD). Summary Statistics include means on all numeric variables, frequency distributions, and univariates on continuous variables. Summary statistics are provided by year.

Contents:

2021 NRD
2020 NRD
2019 NRD
2018 NRD
2017 NRD
2016 NRD
2015 NRD
2014 NRD
2013 NRD
2012 NRD
2011 NRD
2010 NRD

2021 NRD

SumStats NRD 2021 Core File, unweighted (PDF file, 293 KB)
SumStats NRD 2021 Core File, weighted (PDF file, 274.1 KB)
SumStats NRD 2021 Hospital File (PDF file, 141 KB)
SumStats NRD 2021 Severity File (PDF file, 158 KB)
SumStats NRD 2021 DX_PR_Group File (PDF file, 139 KB)

2020 NRD

SumStats NRD 2020 Core File, unweighted (PDF file, 352 KB)
SumStats NRD 2020 Core File, weighted (PDF file, 335 KB)
SumStats NRD 2020 Hospital File (PDF file, 139 KB)
SumStats NRD 2020 Severity File (PDF file, 156 KB)
SumStats NRD 2020 DX_PR_Group File (PDF file, 137 KB)

2019 NRD

SumStats NRD 2019 Core V2 File, unweighted (PDF file, 296 KB)
SumStats NRD 2019 Core V2 File, weighted (PDF file, 281 KB)
SumStats NRD 2019 Hospital V2 File (PDF file, 139 KB)
SumStats NRD 2019 Severity V2 File (PDF file, 156 KB)
SumStats NRD 2019 DX_PR_Group V2 File (PDF file, 138 KB)

2018 NRD

SumStats NRD 2018 Core File, unweighted (PDF file, 288 KB)
SumStats NRD 2018 Core File, weighted (PDF file, 275 KB)
SumStats NRD 2018 Hospital File (PDF file, 149 KB)
SumStats NRD 2018 Severity File (PDF file, 155 KB)
SumStats NRD 2018 DX_PR_Group File (PDF file, 254 KB)

2017 NRD

SumStats NRD 2017 Core File, unweighted (PDF file, 312 KB)
SumStats NRD 2017 Core File, weighted (PDF file, 277 KB)
SumStats NRD 2017 Hospital File (PDF file, 160 KB)
SumStats NRD 2017 Severity File (PDF file, 159 KB)

2016 NRD

SumStats NRD 2016 Core File, unweighted (PDF file, 311 KB)
SumStats NRD 2016 Core File, weighted (PDF file, 277 KB)
SumStats NRD 2016 Hospital File (PDF file, 161 KB)
SumStats NRD 2016 Severity File (PDF file, 159 KB)

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2015 NRD

SumStats NRD 2015 Core File, unweighted (PDF file, 197 KB)
SumStats NRD 2015 Core File, weighted (PDF file, 170 KB)
SumStats NRD 2015 Hospital File (PDF file, 160 KB)
SumStats NRD 2015 Severity File for Discharge Quarters 1-3 (ICD-9-CM) (PDF file, 223 KB)
SumStats NRD 2015 Severity File for Discharge Quarter 4 (ICD-10-CM/PCS) (PDF file, 158 KB)
SumStats NRD 2015 DX_PR_Group File for Discharge Quarters 1-3 (ICD-9-CM) (PDF file, 337 KB)
SumStats NRD 2015 DX_PR_Group File for Discharge Quarter 4 (ICD-10-CM/PCS) (PDF file, 229 KB)

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2014 NRD

SumStats NRD 2014 Core File, unweighted (PDF file, 387 KB)
SumStats NRD 2014 Core File, weighted (PDF file, 351 KB)
SumStats NRD 2014 Hospital File (PDF file, 160 KB)
SumStats NRD 2014 Severity File (PDF file, 230 KB)
SumStats NRD 2014 DX_PR_Group File (PDF file, 135 KB)

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2013 NRD

SumStats NRD 2013 Core File, unweighted (PDF file, 375 KB)
SumStats NRD 2013 Core File, weighted (PDF file, 339 KB)
SumStats NRD 2013 Hospital File (PDF file, 160 KB)
SumStats NRD 2013 Severity File (PDF file, 223 KB)
SumStats NRD 2013 DX_PR_Group File (PDF file, 138 KB)

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2012 NRD

SumStats NRD 2012 Core V2 File, unweighted (PDF file, 361 KB)
SumStats NRD 2012 Core V2 File, weighted (PDF file, 339 KB)
SumStats NRD 2012 Hospital V2 File (PDF file, 159 KB)
SumStats NRD 2012 Severity V2 File (PDF file, 219 KB)
SumStats NRD 2012 DX_PR_Group V2 File (PDF file, 136 KB)

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2011 NRD

SumStats NRD 2011 Core V2 File, unweighted (PDF file, 362 KB)
SumStats NRD 2011 Core V2 File, weighted (PDF file, 339 KB)
SumStats NRD 2011 Hospital V2 File (PDF file, 159 KB)
SumStats NRD 2011 Severity V2 File (PDF file, 219 KB)
SumStats NRD 2011 DX_PR_Group V2 File (PDF file, 136 KB)

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2010 NRD

SumStats NRD 2010 Core V2 File, unweighted (PDF file, 360 KB)
SumStats NRD 2010 Core V2 File, weighted (PDF file, 338 KB)
SumStats NRD 2010 Hospital V2 File (PDF file, 158 KB)
SumStats NRD 2010 Severity V2 File (PDF file, 219 KB)
SumStats NRD 2010 DX_PR_Group V2 File (PDF file, 136 KB)

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Internet Citation: NRD Summary Statistics. Healthcare Cost and Utilization Project (HCUP). March 2024. Agency for Healthcare Research and Quality, Rockville, MD. www.hcup-us.ahrq.gov/db/nation/nrd/nrdsummstats.jsp.

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Last modified 03/20/24