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| | Drug 1989 |
 | | (Documentation of the 1989 NAMCS Micro-Data Tape for Patient visits is contained in a separate report.) Section I, "Description of the National Ambulatory Medical Care Survey," includes information on the scope of the survey, the sample, field activities, data collection procedures, medical coding procedures, population estimates, and sampling errors. |
 | | Major types of ambulatory encounters not included in the 1989 NAMCS were those made by telephone, those made outside of the physician's office, and those made in hospital or institutional settings. |
 | | The physician universe, sample size, and response rates by physician specialty are shown in table I. Of the participating physicians, 198 saw no patients during their assigned reporting period because of vacations, illness, or other reasons for being temporarily not in practice. |
| wonder.cdc.gov /wonder/sci_data/surveys/namcs/type_txt/drug89.asp (5003 words) |
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