National Ambulatory Medical Care Survey, 2005 (ICPSR 21560)

Published: Feb 6, 2008

Principal Investigator(s):
United States Department of Health and Human Services. National Center for Health Statistics

Series:

https://doi.org/10.3886/ICPSR21560.v2

Version V2

The National Ambulatory Medical Care Surveys (NAMCS) supply data on ambulatory medical care provided in physicians' offices. The 2005 survey contains information from 25,665 patient visits to 1,281 physicians' offices. Data are available on the patient's smoking habits, reason for the visit, expected source of payment, the physician's diagnosis, and the kinds of diagnostic and therapeutic services rendered. Other variables cover drugs/medications ordered, administered, or provided during office visits, with information on medication code, generic name and code, brand name, entry status, prescription status, federal controlled substance status, composition status, and related ingredient codes. Information is also included on the physician's specialization and geographic location. Demographic information on patients, such as age, sex, race, and ethnicity, was also collected.

United States Department of Health and Human Services. National Center for Health Statistics. National Ambulatory Medical Care Survey, 2005. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2008-02-06. https://doi.org/10.3886/ICPSR21560.v2

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In preparing the data file for this collection, the National Center for Health Statistics (NCHS) has removed direct identifiers and characteristics that might lead to identification of data subjects. As an additional precaution, NCHS requires, under Section 308(d) of the Public Health Service Act (42 U.S.C. 242m), that data collected by NCHS not be used for any purpose other than statistical analysis and reporting. NCHS further requires that analysts not use the data to learn the identity of any persons or establishments and that the director of NCHS be notified if any identities are inadvertently discovered. ICPSR member institutions and other users ordering data from ICPSR are expected to adhere to these restrictions.

2005

2005

Per agreement with NCHS, ICPSR distributes the data file and text of the technical documentation for this collection as prepared by NCHS.

The 2005 NAMCS utilized a multistage probability sample design. Primary sampling units (PSUs) were selected in the first stage, physician practices within PSUs in the second stage, and patient visits to selected physicians in the third stage.

Office visits made within the United States by patients of nonfederally-employed physicians who were primarily involved in office-based patient care activities, but not engaged in the specialties of radiology, pathology, or anesthesiology.

medical records

administrative records data

2008-01-30

2008-02-06

2008-02-06 The setup files were updated.

Microdata file users should be fully aware of the importance of the "patient visit weight" (PATWT) and how it must be used. Information about the patient visit weight is presented in the codebook. If more information is needed, the staff of the Ambulatory Care Statistics Branch can be consulted by calling (301) 458-4600 during regular working hours. Prior to this data release, researchers could not make physician-level estimates with publicly available NAMCS data. For 2005, a new "physician weight" (PHYSWT) variable was added to the first record for each individual physician in the dataset.

Notes

  • The public-use data files in this collection are available for access by the general public. Access does not require affiliation with an ICPSR member institution.

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This study is maintained and distributed by the National Archive of Computerized Data on Aging (NACDA), the aging program within ICPSR. NACDA is sponsored by the National Institute on Aging (NIA) at the National Institutes of Heath (NIH).