National Hospital Ambulatory Medical Care Survey Series RSS

Investigator(s): National Center for Health Statistics

The National Hospital Ambulatory Medical Care Survey (NHAMCS) was inaugurated in 1992 to fill a gap in data about ambulatory medical care in the United States. Although the National Ambulatory Medical Care Survey (NAMCS) collects annual data on patient visits to physician offices, it excludes the hospital emergency room and outpatient department visits that make up a large part of the total ambulatory care received each year. The NHAMCS series provides data from samples of patient records selected from emergency departments and outpatient departments of a national sample of hospitals. Beginning with the 2009 data release, the NHAMCS will contain data from hospital-based ambulatory surgery centers; additionally, the NHAMCS will collect data from freestanding ambulatory surgery centers starting with the 2010 data release. These additions incorporate the design of the National Survey of Ambulatory Surgery (NSAS). The primary function of the NSAS, which was discontinued in 2006, was to collect data on surgical care in ambulatory surgery centers. The resulting national estimates describe the use of hospital ambulatory medical care services in the United States.

Most Recent Studies

Related Publications ?

Most Recent Publications

2014
Cohen, Donna,  Coco, Andrew . Do physicians address other medical problems during preventive gynecologic visits?. Journal of the American Board of Family Medicine. 27, (1), 13-18.
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2013
Bhattacharyya, Neil,  Kepnes, Lynn J. Patterns of care before and after the Adult Sinusitis Clinical Practice Guideline. Laryngoscope. 123, (7), 1588-1591.
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2013
Chirdkiatgumchai, Vilawan,  Xiao, Hong,  Fredstrom, Bridget K.,  Adams, Ryan E.,  Epstein, Jeff N.,  Shah, Samir S.,  Brinkman, William B.,  Kahn, Robert S.,  Froehlich, Tanya E. National trends in psychotropic medication use in young children: 1994-2009. Pediatrics. 132, (4), 615-623.
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2013
Crawford, Tonya,  Segars, Larry W.,  Rasu, Rafia S. Prescribing trends for management of congestive heart failure from 2002 to 2004. Research in Social and Administrative Pharmacy. 9, (4), 482-489.
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2013
Eneli, Ihuoma U.,  Wang, Wei,  Kelleher, Kelly . Identification and counseling for obesity among children on psychotropic medications in ambulatory settings. Obesity. 21, (8), 1656-1661.
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2013
Ewigman, Nate L.,  Gylys, Julius A.,  Harman, Jeffrey S. The diagnosis of anger as a presenting complaint in outpatient medical settings. Psychiatric Services. 64, (9), 921-924.
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2013
Ginde, Adit A.,  Moss, Marc,  Shapiro, Nathan I.,  Schwartz, Robert S. Impact of older age and nursing home residence on clinical outcomes of US emergency department visits for severe sepsis. Journal of Critical Care. 28, (5), 606-611.
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2013
Goyal, Monika,  Hersh, Adam,  Luan, Xianqun,  Localio, Russell,  Trent, Maria,  Zaoutis, Theoklis . Are emergency departments appropriately treating adolescent pelvic inflammatory disease?. JAMA Pediatrics. 167, (7), 672-673.
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2013
Haggins, Adrianne,  Patrick, Stephen,  Demonner, Sonya,  Davis, Matthew M. When coverage expands: Children's Health Insurance Program as a natural experiment in use of health care services. Academic Emergency Medicine. 20, (10), 1026-1032.
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