Introduction to the HCUP Nationwide Inpatient Sample (NIS)

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HCUP NATIONWIDE INPATIENT SAMPLE (NIS) SUMMARY OF DATA USE LIMITATIONS ***** REMINDER ***** All users of the NIS must take the on-line Data Use Agreement (DUA) training session, sign a Data Use Agreement, and send a copy to AHRQ. † Authorized users of HCUP data agree to the following limitations: ‡ • Will not use the data for any purpose other than research or aggregate statistical reporting. • Will not re-release any data to unauthorized users. • Will not identify or attempt to identify any individual. Will not report any statistics where the number of observations (i.e., individual discharge records) in any given cell of tabulated data is less than or equal to 10. • Will not link HCUP data to data from another source that identifies individuals. • Will not report information that could identify individual establishments (e.g., hospitals). • Will not use the data concerning individual establishments for commercial or competitive purposes involving those establishments. • Will not use the data to determine rights, benefits, or privileges of individual establishments. • Will not identify or attempt to identify any establishment when its identity has been concealed on the database. • Will not contact establishments included in the data. • Will not attribute to data contributors any conclusions drawn from the data. • Will not use data elements from the proprietary severity adjustment software packages (3M APR-DRGs, HSS APS-DRGs, and Thomson Reuters Disease Staging) for any commercial purpose or to disassemble, decompile, or otherwise reverse engineer the proprietary software. • Must acknowledge the "Healthcare Cost and Utilization Project (HCUP)," as described in the Data Use Agreement, in reports. Any violation of the limitations in the Data Use Agreement is punishable under Federal law by a fine of up to $10,000 and up to 5 years in prison. Violations may also be subject to penalties under State statutes. † The on-line Data Use Agreement training session and the Data Use Agreement are available on the HCUP User Support (HCUP-US) Website at http://www.hcup-us.ahrq.gov. ‡ Specific provisions are detailed in the Data Use Agreement for Nationwide Inpatient Sample. HCUP NIS (09/06/2011) 1 Introduction
HCUP CONTACT INFORMATION The NIS Data Use Agreement Training Tool and the Data Use Agreement are available on the AHRQ-sponsored HCUP User Support (HCUP-US) Website: http://www.hcup-us.ahrq.gov After completing the on-line training tool, please submit signed data use agreements to HCUP at: Agency for Healthcare Research and Quality Healthcare Cost and Utilization Project (HCUP) 540 Gaither Road, 5 th Floor Rockville, Maryland 20850 Phone: (866) 290-HCUP (4287) Fax: (301) 427-1430 Website: http://www.ahrq.gov/data/hcup/ For technical assistance: Visit the HCUP-US Website at http://www.hcup-us.ahrq.gov Or for issues related to reading and loading the files contact the HCUP Central Distributor at Phone: (866) 556-4287 (toll-free between the hours of 9 a.m. and 5 p.m. (ET). If the HCUP Central Distributor is not immediately available, please leave a message on voice mail, and your call will be returned within one business day.) Fax: (866) 792-5313 E-mail: HCUPDistributor@ahrq.gov For other issues send an e-mail to HCUP User Support at hcup@ahrq.gov HCUP NIS (09/06/2011) 2 Introduction
Page 1 and 2: HEALTHCARE COST AND UTILIZATION PRO
Page 3: Zero-Weight Hospitals .............
Page 7 and 8: UNDERSTANDING THE NIS This document
Page 9 and 10: elease of hospital identifiers. In
Page 11 and 12: Contents of DVD The NIS is distribu
Page 13 and 14: • To locate the NIS documentation
Page 15 and 16: States that have agreed to particip
Page 17 and 18: 1. Some of the new data elements pe
Page 19 and 20: e treated as if they were randomly
Page 21 and 22: One approach to consider in hospita
Page 23 and 24: 3. Location - urban or rural. Gover
Page 25 and 26: that could be matched to the AHA da
Page 27 and 28: calculations, we drew at least two
Page 29 and 30: 2. We adjusted the admission month
Page 31 and 32: number of adjusted discharges from
Page 33 and 34: State NH NJ NM NV NY OH OK OR PA RI
Page 35 and 36: Table 3. Summary of NIS Releases Da
Page 37 and 38: Table 4. Summary of NIS Data Source
Page 39 and 40: Year Data Sources Number of Hospita
Page 41 and 42: Figure 1: Hospital Universe, by Yea
Page 43 and 44: Table 7: Bed Size Categories, by Re
Page 45 and 46: Figure 4: Number of Hospitals in th
Page 47 and 48: Figure 4: Number of Hospitals in th
Page 49 and 50: Return to Introduction HCUP NIS (09
Page 51 and 52: State Number of Hospitals and Disch
Page 53 and 54: Figure 6: Number of NIS Discharges,
Page 55 and 56:
Figure 8: Number of Hospitals in th
Page 57 and 58:
Figure 10: Number of Discharges in
Page 59 and 60:
Confidentiality of Hospitals - Rest
Page 61 and 62:
Confidentiality of Hospitals - Limi
Page 63 and 64:
Confidentiality of Records - Restri
Page 65 and 66:
Confidentiality of Records - Other
Page 67 and 68:
Appendix III: Data Elements Table 1
Page 69 and 70:
Type of Data Element HCUP Name TRAN
Page 71 and 72:
Type of Data Element HCUP Name Year
Page 73 and 74:
Type of Data Element External cause
Page 75 and 76:
Type of HCUP Data Element Name Medi
Page 77 and 78:
Type of Data Element HCUP Name PRDA
Page 79 and 80:
Type of HCUP Years Coding Notes Una
Page 81 and 82:
Type of Data Element Hospital weigh
Page 83 and 84:
Type of Data Element HCUP Years Cod
Page 85 and 86:
Table 4. Data Elements in the NIS D
Page 87 and 88:
ENDNOTES 1 2 3 Refer to Chapter 10
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Introduction to the HCUP Nationwide Inpatient Sample (NIS)

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