What's New
Data Products
- 2007 NHAMCS Public Use Micro-Data Files Are Available! The 2007 National Hospital Ambulatory Medical Care Survey public use micro-data files and documentation are now available for downloading. SAS files for reading and formatting the data are also available. SPSS and Stata files will be added at a later date. Researchers should note that data on emergency and outpatient department use of electronic medical records are not available at this time. Once those data become available, the files will be re-released to include them. (9/2009)
- 2007 NAMCS Public Use Micro-Data File is Available!
The 2007 National Ambulatory Medical Care Survey public use micro-data file and documentation are now available for downloading. SAS files for reading and formatting the data are also available. SPSS and Stata files will be added at a later date. The 2007 National Hospital Ambulatory Medical Care Survey public use micro-data files and documentation have been delayed, but should be available in the near future. (8/2009)
- Re-release of 1992 NHAMCS ED/OD public-use files
The 1992 National Hospital Ambulatory Medical Care Survey Emergency Department and Outpatient Department public use micro-data files have been re-released to include masked sample design variables and are now available for downloading. Please be sure to download the new supplemental documentation file (supp92.pdf) [PDF - 40 KB], which explains the new variables and other minor modifications to the file, and which should be used in conjunction with the original documentation file. SAS files for reading and formatting the data are also available. The 1992 National Ambulatory Medical Care Survey public use micro-data file will be re-released with masked design variables at a later date. See Questionnaires, Datasets, and Related Documentation to download the appropriate files. (1/28/2009)
Announcements
Beginning in 2009, hospital-based ambulatory surgery centers are being included in the sample design for the National Hospital Ambulatory Medical Care Survey. In 2010, there are plans to add free-standing ambulatory surgery centers as well. Previously, ambulatory surgery data were collected by the National Survey of Ambulatory Surgery, which was last fielded in 2006.
Attention Health Care Providers!
The course entitled "National Ambulatory Medical Care Survey Methods: What Clinicians Need to Know" is now eligible for 1.25 hours of Category 1 continuing medical education (CME), 1.4 hours of continuing nursing education (CNE) and 0.1 continuing education (CEU) credits. Please contact our office for more information.
Publications
- Estimates of Emergency Department Capacity: United States, 2007 (5/2009)
- Role of International Medical Graduates Providing Office-based Medical Care: United States, 2005-2006, Data Brief No. 13 (2/2009) [PDF - 540 KB]
- Preliminary Estimates of Electronic Medical Record Use by Office-based Physicians: United States, 2008 (12/2008)
NAMCS and NHAMCS Data in the News
- "Aging Population Makes for More Visits to the Doctor's Office, Hospitals Also Facing Increasing Workload"--US News and World Report (8/7/2008)
- "ER Care in Critical Condition"-- NBC Nightly News with Brian Williams (8/6/2008)
- "Emergency Room Waits Getting Longer: In 1997, a typical ER adult patient waited 22 minutes for treatment, compared to 30 minutes in 2004. That equals 'an extra 1,550 years that Americans spent waiting in EDs' write the researchers."--CBS News (1/17/08)
- "Emergency Care Waits Found to Be on Rise: Patients are waiting longer for care in the nation's emergency rooms, a potentially deadly result of the shrinking number of emergency departments and rising demand for emergency services, according to a new study by researchers at Harvard Medical School."--Washington Post (1/15/08)
Previous What's New Items

Contact Us:
-
Ambulatory and Hospital Care Statistics Branch
National Center for Health Statistics
3311 Toledo Road
Hyattsville, MD 20782 - (301) 458-4600
- cdcinfo@cdc.gov

