HCUP-US SID Overview

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html lang="en"> <head><script type="text/javascript" src="/_static/js/bundle-playback.js?v=HxkREWBo" charset="utf-8"></script> <script type="text/javascript" src="/_static/js/wombat.js?v=txqj7nKC" charset="utf-8"></script> <script>window.RufflePlayer=window.RufflePlayer||{};window.RufflePlayer.config={"autoplay":"on","unmuteOverlay":"hidden"};</script> <script type="text/javascript" src="/_static/js/ruffle/ruffle.js"></script> <script type="text/javascript"> __wm.init("https://web.archive.org/web"); __wm.wombat("http://hcup-us.ahrq.gov/sidoverview.jsp","20150905194428","https://web.archive.org/","web","/_static/", "1441482268"); </script> <link rel="stylesheet" type="text/css" href="/_static/css/banner-styles.css?v=S1zqJCYt" /> <link rel="stylesheet" type="text/css" href="/_static/css/iconochive.css?v=3PDvdIFv" />  <title>HCUP-US SID Overview</title> <link rel="stylesheet" href="/web/20150905194428cs_/http://hcup-us.ahrq.gov/HCUP_US.css"> <meta name="keywords" content="hcup, healthcare cost and utilization project, health, healthcare, health statistics, data analysis, analysis, data collection, data processing, databases, research"> <link rel="icon" type="image/vnd.microsoft.icon" href="/web/20150905194428im_/http://hcup-us.ahrq.gov/HCUPnetTree.ico" sizes="16x16 32x32 48x48 64x64"> <link rel="shortcut icon" href="/web/20150905194428im_/http://hcup-us.ahrq.gov/images/favicon.ico"/>  <script type="text/javascript"> var steering = false; var team = false; var partner = false; var nhqrdr = false; </script> <script type="text/javascript" src="/web/20150905194428js_/http://hcup-us.ahrq.gov/menu/c_config.js"></script> <script type="text/javascript" src="/web/20150905194428js_/http://hcup-us.ahrq.gov/menu/c_smartmenus.js"></script>  </head> <body> <div id="skipmenu"> <a href="#skip" class="skippy">Skip Navigation</a> <a name="top"></a> </div> <div id="hideShow"> <table summary="layout" width="100%" cellspacing="2" cellpadding="0" border="0"> <tr> <td align="center" class="logoPanel" bgcolor="#006699"> <div id="logo"> <a href="/web/20150905194428/http://hcup-us.ahrq.gov/"><img src="/web/20150905194428im_/http://hcup-us.ahrq.gov/images/HCUP_logo/hcuplogo_smaller_final.jpg" alt="Healthcare Cost and Utilization Project logo"></a> </div> </td> <td bgcolor="#66cccc" class="bannerPanel"><br> <div class="bannertitleinteriorpgs">Overview of the State Inpatient Databases (SID)</div> <div class="bannertext">The SID are a set of longitudinal State-specific hospital inpatient databases included in the HCUP family. These databases are created by AHRQ through a Federal-State-Industry partnership.</div> </td> <td bgcolor="#66cccc" valign="middle" class="searchPanel"> <form method="get" action="/web/20150905194428/http://hcup-us.ahrq.gov/search/Search.action"> <table cellpadding="0px" cellspacing="0px"> <tr> <td class="searchBox"> <input type="text" name="query"> </td> <td valign="middle" class="searchIcon"> <input type="image" src="/web/20150905194428im_/http://hcup-us.ahrq.gov/images/search-icon2.png" placeholder="Search" alt="search" class="search-icon" title="Search" width="10" height="11"> </td> </tr> </table> </form> </td> </tr> <tr> <td width="122" bgcolor="#66cccc"> </td> <td width="100%" colspan="2"><ul id="Menu1" class="MM"> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/"><br/>Home</a> <ul> <li><a class="NOLINK">What is HCUP?</a> <ul> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/overview.jsp">Overview of HCUP</a></li> <li><a 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href="/web/20150905194428/http://hcup-us.ahrq.gov/tech_assist/centdist.jsp">Obtaining the KID</a> <ul> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/tech_assist/dua.jsp">HCUP Data Use Agreement Training</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/team/NationwideDUA.jsp">Nationwide Data Use Agreement</a></li> </ul> </li> <li><a class="NOLINK">Using the KID</a> <ul> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/db/nation/kid/kiddbdocumentation.jsp">KID Database Documentation</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/db/nation/kid/kidrelatedreports.jsp">KID Related Reports</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/db/publishing.jsp">Publishing with HCUP Data</a></li> </ul> </li> </ul> </li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/databases.jsp">Nationwide Emergency Department Sample (NEDS)</a> <ul> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/nedsoverview.jsp">Overview of the NEDS</a> <ul> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/partners.jsp?NEDS">HCUP Partners in the NEDS</a></li> </ul> </li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/tech_assist/centdist.jsp">Obtaining the NEDS</a> <ul> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/tech_assist/dua.jsp">HCUP Data Use Agreement Training</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/team/NationwideDUA.jsp">Nationwide Data Use Agreement</a></li> </ul> </li> <li><a class="NOLINK">Using the NEDS</a> <ul> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/db/nation/neds/nedsdbdocumentation.jsp">NEDS Database Documentation </a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/db/nation/neds/nedsrelatedreports.jsp">NEDS Related Reports</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/db/publishing.jsp">Publishing with HCUP Data</a></li> </ul> </li> </ul> </li> <li><a class="NOLINK"><strong>State-Specific HCUP Databases</strong></a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/databases.jsp">State Inpatient Databases (SID)</a> <ul> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/sidoverview.jsp">Overview of the SID</a> <ul> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/partners.jsp?SID">HCUP Partners in the SID</a></li> </ul> </li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/tech_assist/centdist.jsp">Obtaining the SID</a> <ul> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/tech_assist/dua.jsp">HCUP Data Use Agreement Training</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/team/StateDUA.jsp">State Database Data Use Agreement</a></li> </ul> </li> <li><a class="NOLINK">Using the SID</a> <ul> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/db/state/siddbdocumentation.jsp">SID Database Documentation</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/db/state/sidrelatedreports.jsp">SID Related Reports</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/db/publishing.jsp">Publishing with HCUP Data</a></li> </ul> </li> </ul> </li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/databases.jsp">State Ambulatory Surgery and Services Databases (SASD)</a> <ul> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/sasdoverview.jsp">Overview of the SASD</a> <ul> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/partners.jsp?SASD">HCUP Partners in the SASD</a></li> </ul> </li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/tech_assist/centdist.jsp">Obtaining the SASD</a> <ul> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/tech_assist/dua.jsp">HCUP Data Use Agreement Training</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/team/StateDUA.jsp">State Database Data Use Agreement</a></li> </ul> </li> <li><a class="NOLINK">Using the SASD</a> <ul> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/db/state/sasddbdocumentation.jsp">SASD Database Documentation</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/db/state/sasdrelatedreports.jsp">SASD Related Reports</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/db/publishing.jsp">Publishing with HCUP Data</a></li> </ul> </li> </ul> </li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/databases.jsp">State Emergency Department Databases (SEDD)</a> <ul> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/seddoverview.jsp">Overview of the SEDD</a> <ul> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/partners.jsp?SEDD">HCUP Partners in the SEDD</a></li> </ul> </li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/tech_assist/centdist.jsp">Obtaining the SEDD</a> <ul> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/tech_assist/dua.jsp">HCUP Data Use Agreement Training</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/team/StateDUA.jsp">SEDD Data Use Agreement</a></li> </ul> </li> <li><a class="NOLINK">Using the SEDD</a> <ul> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/db/state/sedddbdocumentation.jsp">SEDD Database Documentation</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/db/state/seddrelatedreports.jsp">SEDD Related Reports</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/db/publishing.jsp">Publishing with HCUP Data</a></li> </ul> </li> </ul> </li> </ul> </li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/tools_software.jsp">Tools &<br/>Software</a> <ul> <li><a class="NOLINK">Favorites</a> <ul> <li><a href="https://web.archive.org/web/20150905194428/http://hcupnet.ahrq.gov/" target="_blank">HCUPNet</a></li> <li><a href="https://web.archive.org/web/20150905194428/http://qualityindicators.ahrq.gov/" target="_blank">AHRQ Quality Indicators (QIs)</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/toolssoftware/monahrq/monahrq.jsp">MONAHRQ</a></li> </ul> </li> <li><a class="NOLINK">HCUP Tools & Software</a> <ul> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/toolssoftware/ccs10/ccs10.jsp">Clinical Classifications Software (CCS) for ICD-10-CM/PCS</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/toolssoftware/ccs/ccs.jsp">Clinical Classifications Software (CCS) for ICD-9-CM</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/toolssoftware/ccs_svcsproc/ccssvcproc.jsp">Clinical Classifications Software (CCS) for Services and Procedures</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/toolssoftware/icd_10/ccs_icd_10.jsp">Classifications Software (CCS) for Mortality Reporting</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/toolssoftware/mhsa/mhsa.jsp">Clinical Classifications Software for Mental Health and Substance Abuse (CCS-MHSA)</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/toolssoftware/chronic/chronic.jsp">Chronic Condition Indicator</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/toolssoftware/chronic_icd10/chronic_icd10.jsp">Chronic Condition Indicator for ICD-10-CM</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/toolssoftware/comorbidity/comorbidity.jsp">Comorbidity Software</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/toolssoftware/comorbidityicd10/comorbidity_icd10.jsp">Comorbidity Software for ICD-10-CM</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/toolssoftware/procedure/procedure.jsp">Procedure Classes</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/toolssoftware/procedureicd10/procedure_icd10.jsp">Procedure Classes for ICD-10-PCS</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/toolssoftware/util_flags/utilflag.jsp">Utilization Flags</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/toolssoftware/surgflags/surgeryflags.jsp">Surgery Flags</a></li> </ul> </li> <li><a class="NOLINK">HCUP Supplemental Files</a> <ul> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/db/state/costtocharge.jsp">Cost-to-Charge Ratio (CCR) Files</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/toolssoftware/hms/hms.jsp">Hospital Market Structure (HMS) Files</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/toolssoftware/revisit/revisit.jsp">HCUP Supplemental Variables for Revisit Analyses</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/db/state/ahalinkage/aha_linkage.jsp">American Hospital Association (AHA) Linkage Files</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/db/nation/nis/nisownership.jsp">NIS Hospital Ownership Files</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/db/nation/nis/nistrends.jsp">Nationwide Inpatient Sample Trends (NIS-Trends) Files</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/db/nation/kid/kidtrends.jsp">Kid’s Inpatient Database Trends (KID-Trends) File</a></li> </ul> </li> </ul> </li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/reports.jsp"><br/>Reports</a> <ul> <li><a class="NOLINK"><strong>Favorites</strong></a></li> <li><a class="NOLINK">HCUP Statistical Briefs</a> <ul> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/reports/statbriefs/sbtopic.jsp">Topical list</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/reports/statbriefs/statbriefs.jsp">Chronological list </a></li> </ul> </li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/reports/infographics.jsp">HCUP Infographics</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/reports/projections/projections_rpts.jsp">HCUP Projections</a></li> <li><a class="NOLINK"><strong>Information About Using HCUP Data</strong></a></li> <li><a class="NOLINK">HCUP Methods Series</a> <ul> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/reports/methods/methods_topic.jsp">Topical list</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/reports/methods/methods.jsp">Chronological list </a></li> </ul> </li> <li><a class="NOLINK">HCUP Nationwide Database Reports</a> <ul> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/db/nation/nis/nisrelatedreports.jsp">NIS </a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/db/nation/kid/kidrelatedreports.jsp">KID </a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/db/nation/neds/nedsrelatedreports.jsp">NEDS</a></li> </ul> </li> <li><a class="NOLINK">HCUP State Database Reports</a> <ul> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/db/state/sidrelatedreports.jsp">SID</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/db/state/sasdrelatedreports.jsp">SASD</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/db/state/seddrelatedreports.jsp">SEDD</a></li> </ul> </li> <li><a class="NOLINK"><strong>Additional Topics</strong></a></li> <li><a class="NOLINK">Topical Reports</a> <ul> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/reports/r_e_disparities.jsp">Race/Ethnicity </a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/reports/mhsa.jsp">Mental and Substance Use Disorders </a></li> </ul> </li> <li><a class="NOLINK">HCUP Publications</a> <ul> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/reports/pubsearch/pubsearch.jsp">Publication search </a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/reports/spotlights.jsp">Research Spotlights </a></li> <li><a href="https://web.archive.org/web/20150905194428/http://www.ahrq.gov/research/publications/">AHRQ Publications</a></li> </ul> </li> <li><a class="NOLINK">HCUP Archive</a> <ul> <li><a 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Year Awards</a> </ul> </li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/tech_assist/centdist.jsp">Purchase<br/>HCUP Data</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/techassist.jsp">Technical<br/>Assistance</a> <ul> <li><a class="NOLINK">Need Help?</a> <ul> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/tech_assist/faq.jsp">FAQs</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/databases.jsp">HCUP Databases</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/tech_assist/centdist.jsp">HCUP Central Distributor</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/db/publishing.jsp">HCUP Publishing Requirements</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/tech_assist/index_abc.jsp">HCUP Index</a></li> </ul> </li> <li><a class="NOLINK">HCUP Training & Tutorials</a> <ul> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/overviewcourse.jsp">HCUP Overview Course</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/tech_assist/dua.jsp">Data Use Agreement Training Tool</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/tech_assist/tutorials.jsp">HCUP On-line Tutorials</a></li> </ul> </li> <li><a class="NOLINK">Contact Information</a> <ul> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/techassist.jsp">Technical Support</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/techassist.jsp">Data Orders</a></li> </ul> </li> </ul> </li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/datainnovations.jsp">Data<br/>Innovations</a> <ul> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/datainnovations/icd10_resources.jsp">ICD-10-CM/PCS Resources</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/datainnovations/clinicaldata/poatoolkit.jsp">Present on Admission Resources</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/datainnovations/raceethnicitytoolkit/home_race.jsp">Race and Ethnicity Data Improvement Toolkit</a></li> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/datainnovations/clinicalcontentenhancementtoolkit/home_toolkits.jsp">Clinical Content Enhancement Toolkit</a></li> </ul> </li> </ul> </td> </tr> <tr><td colspan="3"><a name="skip"></a></td></tr> </table> </div> <table summary="layout" width="100%" border="0" cellspacing="2" cellpadding="4"> <tr><td> </td></tr> <tr> <td width="100%" align="left" valign="top"><div class="texttitle">State Inpatient Databases</div> <br> <div class="pagetext">The State Inpatient Databases (SID) are part of the family of databases and software tools developed for the <a href="overview.jsp">Healthcare Cost and Utilization Project (HCUP)</a>. The SID includes inpatient discharge records from community hospitals in that State. The SID files encompass all patients, regardless of payer, providing a unique view of inpatient care in a defined market or State over time. <br><br> Developed through a Federal-State-Industry partnership sponsored by the <a href="https://web.archive.org/web/20150905194428/http://www.ahrq.gov/" target="_blank">Agency for Healthcare Research and Quality</a>, HCUP data inform decisionmaking at the national, State, and community levels. <br><br> This page provides an overview of the SID. For more details, see <a href="/web/20150905194428/http://hcup-us.ahrq.gov/db/state/siddbdocumentation.jsp">SID Database Documentation</a> and the <em>Introduction to the SID</em> (<a href="/web/20150905194428/http://hcup-us.ahrq.gov/db/state/siddist/Introduction_to_SID.pdf" target="_blank">PDF</a> file, 165 KB; <a href="/web/20150905194428/http://hcup-us.ahrq.gov/db/state/siddist/SID_Introduction.jsp">HTML</a>). <br><br> Contents:<a name="return"></a> <ul> <li><a href="#about">About the SID</a></li> <li><a href="#data">SID Data Elements</a></li> <li><a href="#research">SID Areas of Research and HCUP Publications</a></li> <li><a href="#purchase">Purchase the SID</a></li> <li><a href="#hardware">SID Hardware and Software Requirements</a></li> </ul> <br> </div> </td></tr> <tr><td> <div class="texttitle"><a name="about">About the SID</a></div><div class="pagetext"> <br> The SID capture hospital inpatient stays in a given State. A number of States make their SID files available for purchase through the <a href="/web/20150905194428/http://hcup-us.ahrq.gov/tech_assist/centdist.jsp">HCUP Central Distributor</a>. <br><br> <a href="/web/20150905194428/http://hcup-us.ahrq.gov/partners.jsp?SID">Forty-eight</a> States now participate in the SID: <br><br> <ul> <li>The SID contain the universe of the inpatient discharge abstracts in participating States, translated into a uniform format to facilitate multi-State comparisons and analyses.</li> <li>Together, the SID encompass about 97 percent of all U.S. community hospital discharges. Some States include discharges from specialty facilities, such as acute psychiatric hospitals.</li> <li>The SID contain a core set of clinical and nonclinical information on all patients, including individuals covered by Medicare, Medicaid, or private insurance, as well as those who are uninsured.</li> </ul> Free <a href="/web/20150905194428/http://hcup-us.ahrq.gov/tools_software.jsp">HCUP Tools & Software</a> are also available to identify preventable hospitalizations, estimate costs, assess quality of care and patient safety, categorize diagnoses and procedures, and identify comorbidities. <br><br> Additional information on the SID may be found in the <em>Introduction to the SID</em> (<a href="/web/20150905194428/http://hcup-us.ahrq.gov/db/state/siddist/Introduction_to_SID.pdf" target="_blank">PDF</a> file, 165 KB; <a href="/web/20150905194428/http://hcup-us.ahrq.gov/db/state/siddist/SID_Introduction.jsp">HTML</a>). </div> </td></tr> <tr><td align="left" class="pagetext"><a href="#return">Return to Contents</a></td></tr> <tr><td> </td></tr> <tr><td> <div class="texttitle"><a name="data">SID Data Elements</a></div><div class="pagetext"> <br> The SID contain clinical and resource-use information that is included in a typical discharge abstract, with safeguards to protect the privacy of individual patients, physicians, and hospitals (as required by data sources). The SID contain more than 100 clinical and nonclinical variables included in a hospital discharge abstract, such as: <br><br> <ul> <li>Principal and secondary diagnoses and procedures</li> <li>Admission and discharge status</li> <li>Patient demographics characteristics (e.g., sex, age, and, for some States, race)</li> <li>Expected payment source </li> <li>Total charges</li> <li>Length of stay</li> </ul> Elements included in the SID are not always available for all States, including the hospital county identifiers or HCUP's <a href="/web/20150905194428/http://hcup-us.ahrq.gov/toolssoftware/revisit/revisit.jsp">Revisit Variables</a>. Please see the <a href="/web/20150905194428/http://hcup-us.ahrq.gov/db/state/siddist/siddist_ddeavailbyyear.jsp">Availability of Data Elements by Year</a>. </div> </td></tr> <tr><td align="left" class="pagetext"><a href="#return">Return to Contents</a></td></tr> <tr><td> </td></tr> <tr><td> <div class="texttitle"><a name="research">SID Areas of Research and HCUP Publications</a></div><div class="pagetext"> <br> Researchers and policymakers use the SID to investigate questions unique to one State, to compare data from two or more States, to conduct market area research or small variation analyses, and to identify State-specific trends in inpatient care. Specific research topics include: <br><br> <ul> <li>Utilization of health services by special populations</li> <li>Use and cost of hospital services</li> <li>Medical practice variation</li> <li>Medical treatment effectiveness</li> <li>Quality of care</li> <li>Impact of health policy changes</li> <li>Access to care</li> <li>Diffusion of medical technology</li> </ul> The SID are used in a variety of publications: <br><br> <ul> <li><a href="/web/20150905194428/http://hcup-us.ahrq.gov/reports/statbriefs/statbriefs.jsp">HCUP Statistical Briefs</a> highlight a variety of health topics.</li> <li>Use the <a href="/web/20150905194428/http://hcup-us.ahrq.gov/reports/pubsearch/pubsearch.jsp">HCUP Publications Search Tool</a> to find publications using the SID.</li> <li>Review featured publications on the <a href="/web/20150905194428/http://hcup-us.ahrq.gov/reports/spotlights.jsp">HCUP Research Spotlights</a> page.</li> <li>Read publications by the winners of the <a href="/web/20150905194428/http://hcup-us.ahrq.gov/awards.jsp">HCUP Outstanding Article of the Year Awards</a>.</li> </ul> <a href="#return">Return to Contents</a> </div></td></tr> <tr><td> </td></tr> <tr><td> <div class="texttitle"><a name="purchase">Purchase the SID</a></div><div class="pagetext"> <br> SID releases for data years 1990 through 2012 are available for purchase through the <a href="/web/20150905194428/http://hcup-us.ahrq.gov/tech_assist/centdist.jsp">HCUP Central Distributor</a>. Costs vary by State and data year. <br><br> Prior to purchasing HCUP data, all individuals are required to take the online <a href="/web/20150905194428/http://hcup-us.ahrq.gov/tech_assist/dua.jsp">HCUP Data Use Agreement Training Course</a>, and users of the SID must read and sign the Data Use Agreement for State Databases (<a href="/web/20150905194428/http://hcup-us.ahrq.gov/team/StateDUA.pdf" target="_blank">PDF</a> file, 206 KB; <a href="/web/20150905194428/http://hcup-us.ahrq.gov/team/StateDUA.jsp">HTML</a>). <br><br> The SID are available for purchase online through the <a href="/web/20150905194428/http://hcup-us.ahrq.gov/tech_assist/centdist.jsp">HCUP Central Distributor</a>. <br><br> Questions regarding purchasing databases can be directed to the HCUP Central Distributor: <p style="margin-left: 35px;"> E-mail: <a href="https://web.archive.org/web/20150905194428/mailto:HCUPDistributor@AHRQ.gov">HCUPDistributor@AHRQ.gov</a> <br> Telephone: (866) 556-4287 (toll free) <br> Fax: (866) 792-5313 (toll free) </p> <a href="#return">Return to Contents</a></div></td></tr> <tr><td> </td></tr> <tr><td> <div class="texttitle"><a name="hardware">SID Hardware and Software Requirements</a></div><div class="pagetext"> <br> The SID data set comes in ASCII format and can be run on desktop computers with a DVD drive. To load and analyze the SID, you will need the following: <br><br> <ul> <li>A DVD drive</li> <li>A hard drive with one to four gigabytes of space available, depending on the SID being used</li> <li>SAS®, SPSS®, or similar analysis software</li> </ul> The data set comes with full documentation. SID documentation and tools, including programs for loading the ASCII file into SAS or SPSS, are also available on the <a href="/web/20150905194428/http://hcup-us.ahrq.gov/db/state/siddbdocumentation.jsp">SID Database Documentation</a> page. <br><br> <a href="#return">Return to Contents</a></div></td></tr> <tr><td> </td></tr> </table> <hr width="75%" align="center" class="hrruleblue"> <table width="100%"> <tr> <td align="center" class="citationtext"> Internet Citation: HCUP Databases. Healthcare Cost and Utilization Project (HCUP). May 2015. Agency for Healthcare Research and Quality, Rockville, MD. www.hcup-us.ahrq.gov/sidoverview.jsp. </td> </tr> <tr> <td align="center" class="citationtext"> <a href="/web/20150905194428/http://hcup-us.ahrq.gov/viewing_prntg.jsp">Are you having problems viewing or printing pages on this Website?</a> </td> </tr> <tr> <td align="center" class="citationtext"> If you have comments, suggestions, and/or questions, please contact <a href="https://web.archive.org/web/20150905194428/mailto:hcup@ahrq.gov">hcup@ahrq.gov.</a> </td> </tr> <tr> <td align="center" class="citationtext"> <a href="https://web.archive.org/web/20150905194428/http://www.ahrq.gov/policy/electronic/privacy/index.html" target="_blank">Privacy Notice</a>, <a href="https://web.archive.org/web/20150905194428/http://www.hhs.gov/plugins.html" target="_blank">Viewers & Players</a> </td> </tr> <tr> <td align="center" class="citationtext">Last modified 5/20/15</td> </tr> </table> </body> </html>

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