jueves, 4 de septiembre de 2014

HCUP Quarterly eNews, Fall 2014, Issue #40

HCUP Quarterly eNews, Fall 2014, Issue #40

Healthcare Cost and Utilization Project e-News bulletin logo


News and Announcements: Notable news from HCUP Databases and Products: New database and product releases Publication Spotlights: Recent works incorporating HCUP data and tools HCUP Q&A: Answers to your HCUP questions HCUP Events: Upcoming HCUP conferences and meetings

Missed the last e-News? Read it on the HCUP-US Web site.

News and Announcements

Now Available: The 2012 National Inpatient Sample (NIS)

The 2012 National Inpatient Sample (NIS) was released in June. The NIS is the largest inpatient care database in the United States and includes all patients, regardless of payer – covering Medicare, Medicaid, privately insured, and uninsured patients.

The NIS is a powerful database that contains data from approximately 7 million hospital stays in 47 states. NIS data can be weighted to produce national estimates, allowing researchers and policy makers to identify, track, and analyze national trends in health care utilization, access, charges, quality, and outcomes.

The 2012 NIS is redesigned to improve national estimates. The previous NIS contained all discharge records from a sample of hospitals participating in HCUP. The revised NIS contains a sample of discharge records from all hospitals participating in HCUP. The new sample strategy is expected to result in estimates with more precise statistical properties than the previous NIS design. To highlight the design change, beginning with 2012 data, AHRQ renamed the NIS from the "Nationwide Inpatient Sample" to the "National Inpatient Sample." More information about the NIS redesign can be found in the NIS Redesign Final Report.

The 2012 NIS is available for purchase through the 
HCUP Central Distributor and select statistics can be accessed viaHCUPnet. 

The 2012 KID Is Now Available

The 2012 Kids' Inpatient Database (KID) has been released. The KID is the only dataset in the United States designed specifically to study hospital use, outcomes, and costs in the population of patients younger than 21 years. An updated KID is released every 3 years.

The KID contains data from nearly 3.2 million pediatric hospital stays, collected from more than 4,100 community hospitals in 44 States. Weighted, the data estimate nearly 7 million hospitalizations. The KID contains data on all pediatric patients, regardless of payer, encompassing data from Medicare, Medicaid, privately insured, and uninsured patients.

The 2012 KID is available for purchase through the HCUP Central Distributor, and select aggregated statistics can be accessed via HCUPnet. Additional information on the KID is available on the HCUP-US Web site.

HCUP Releases Adverse Drug Events Infographic

HCUP has released a new infographic, Adverse Drug Events Occurring in U.S. Hospitals, which visually presents data from HCUP Statistical Brief #164: Characteristics of Adverse Drug Events Originating During the Hospital Stay, 2011. This Statistical Brief includes HCUP data on the four most frequent specific causes of adverse drug events occurring during U.S. hospital stays in 2011. The infographic is available on the HCUP-US Web site in PDF, JPEG, and text formats.

HCUP Releases New Surgery Flag Software

HCUP has released the Surgery Flag Software, which provides a method for identifying surgeries using International Classification of Diseases, 9th Revision, Clinical Modification (ICD-9-CM) and Current Procedural Terminology (CPT®) procedure codes in data that uses these coding schemas. Approximately 2,600 ICD-9-CM surgical procedure codes and 4,700 CPT surgical procedure codes are classified in the Surgery Flags as a narrowly defined therapeutic invasive surgery or a more broadly defined surgery that includes diagnostic invasive procedures. Additional information on the Surgery Flags is available on the HCUP-US Web site.

Now Available: Clinical Classifications Software (CCS) for ICD-10-CM/PCS

In preparation for the October 2015 implementation of ICD-10-CM/PCS, HCUP has released the Clinical Classifications Software (CCS) for ICD-10-CM and PCS, a diagnosis and procedure categorization scheme that can be employed in many types of projects analyzing data on diagnoses and procedures. CCS is based on theInternational Classification of Diseases, 10th Revision (ICD-10), a uniform and standardized coding system. The ICD-10's multitude of codes—over 69,800 diagnosis codes and 71,900 procedure codes—are collapsed into a smaller number of clinically meaningful categories that are sometimes more useful for presenting descriptive statistics than are individual ICD-10 codes. It is based on the CCS for ICD-9-CM and attempts to map ICD-10-CM/PCS codes into the same categories. Additional information on the CCS for ICD-10-CM/PCS is available on the HCUP-US Web site. 

Coming this Fall: The 2012 NEDS

The 2012 Nationwide Emergency Department Sample (NEDS) will be released in late fall. The NEDS is the largest all payer emergency department database in the U.S. and contains information about geographic, hospital, patient, and visit characteristics.

Once released, the 2012 NEDS will be available for purchase through the HCUP Central Distributor, and select aggregated statistics can be accessed via HCUPnet.

Learn about HCUP at its September 10 and 17 Webinars – Registration required

Two webinars introducing researchers to HCUP will be held on September 10 and 17. The first, Overview of the HCUP Databases, covers an introduction to the HCUP family of databases. The second, Overview of the HCUP Products and Tools, covers the use of HCUP software tools and supplemental files to facilitate and augment research. The Webinars are open to the public. Each requires separate advance registration. Additional details of the Webinars are posted on the HCUP Workshops and Webinars page on HCUP-US.

HCUP Data Users’ Workshop on September 24

On September 24, AHRQ will sponsor a full-day, intermediate-level HCUP data users' workshop at its headquarters in Rockville, Maryland. This workshop will teach health services researchers and analysts how to use or improve their use of HCUP databases and products. Registration for this workshop is full but the waitlist is open until September 16. Registration information and the workshop description are available on the HCUP Workshops and Webinars page on HCUP-US.

Databases and Products

Recently Released: 2013 State Databases

Since June 2014, the following 2013 State databases have been released:

State Inpatient Databases (SID): Arizona, Colorado, New Jersey, Oregon

In addition, the 2012 National (Nationwide) Inpatient Sample (NIS) and the 2012 Kids’ Inpatient Database (KID) have been released.

Complete listings of available databases by year can be found in the 
SID/SASD/SEDD Application Kit (beginning on page 5). Databases can be purchased through the HCUP Central Distributor, and aggregated statistics for selected States can be accessed via HCUPnet.

For database purchasing questions, please contact the 
HCUP Central Distributor.

Publication Spotlights

New HCUP Statistical Briefs Posted on HCUP-US

Beginning June 2014, the following HCUP Statistical Briefs have been released:

#174 Overview of Emergency Department Visits in the United States, 2011
#175 Trends and Projections in Inpatient Hospital Costs and Utilization, 2003-2013
#176 Trends and Projections in U.S. Hospital Costs by Patient Age, 2003-2013
#177 Hospital Inpatient Utilization Related to Opioid Overuse Among Adults, 1993-2012

These and other Statistical Briefs can be found on the HCUP-US Web site.

Publications Using HCUP Data

Hasegawa K, Tsugawa Y, Tsai CL, Brown DF, Camargo CA,Jr. Frequent utilization of the emergency department for acute exacerbation of chronic obstructive pulmonary disease. Respir Res 2014 Apr 10;15:40.

This study uses the 2010 and 2011 State Inpatient Databases (SID) and State Emergency Department Databases (SEDD) from two States to determine the quantity and demographics of patients with frequent emergency department visits for acute exacerbations of Chronic Obstructive Pulmonary Disease (AECOPD) and associated health care factors. An article abstract is available via Pubmed. 

Carter MW, Reymann MR. ED use by older adults attempting suicide. Am J Emerg Med 2014 Jun;32(6):535-540.
This study uses the 2006 Nationwide Emergency Department Sample (NEDS) to calculate the number of emergency department visits for older adult patients resulting from intentional self-harm and suicide-related injuries. An article abstract is available via Pubmed. 

To read additional recently-published articles featuring HCUP data, please visit the Research Spotlights page on theHCUP-US Web site.


QuestionDid nationwide HCUPnet statistics for 2011 change? I have downloaded new statistics that do not seem to match previously downloaded statistics. 


Statistics on HCUPnet were recently updated: AHRQ released a new version of HCUPnet using revised weights for trends data. Beginning with 2012, the National Inpatient Sample (NIS) was redesigned to optimize national estimates. As a result, the nationwide statistics for 2011 and earlier years on HCUPnet were regenerated using new trend weights in order to permit longitudinal analysis. The regenerated data were posted to HCUPnet on July 2, 2014.

The statistics for data years 2011 and earlier currently on HCUPnet will differ slightly from statistics obtained prior to July 2. They also differ from statistics generated using your own copy of the NIS and the original discharge weights (
DISCWT). It is now possible to obtain the original statistics for years 2011 and earlier by clicking on a link at the bottom of the results page of HCUPnet once you have run your query.

More information about the NIS redesign and trend weights can be found on the HCUP-US Web site.

For other HCUP questions, please contact HCUP User Support.

HCUP Events

September 10, 2014: HCUP Database Overview Webinar
September 24, 2014: HCUP Data Users Workshop

For a complete list of HCUP presentations and events, visit the HCUP Events Calendar.

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