• N G Levinsky, A S Ash, W Yu, and M A Moskowitz.
• Department of Medicine, Boston University Medical Center, MA 02118, USA.
• J Am Geriatr Soc. 1999 May 1;47(5):553-8.

ObjectivesWe analyzed Medicare data to determine the influence of age, mortality during the study year, and high individual Medicare costs on the frequency of hospitalization for the most common major procedures and for general medical diagnoses.MethodsWe used 1992 Medicare data to classify the most frequent diagnosis related groups (DRGs), representing one-half of all admissions, as procedural or general medical. We studied the frequency of hospitalization for the most common procedures (bowel surgery, cardiovascular procedures, hip and femur surgery) and for general medical care in the entire Medicare population, in persons aged 65 to 74, 75 to 84, and 85 or older, in those who died, and in the 5% of persons whose annual Medicare costs were the highest.ResultsIn the entire population, common procedures accounted for 21% of the most frequent DRGs. Among those who died, the procedures were performed in only 8% of admissions. In the 5% of persons with the highest Medicare costs, 28% of admissions involved procedures. Admissions for cardiovascular procedures and for cancer chemotherapy decreased with age and were infrequent in persons 85 years and older. Hip and femur procedures increased with age and accounted for 70% of the common procedures in persons 85 years and older.ConclusionsThe most common major procedures account for a minority of hospitalizations of persons more than age 65, of persons 85 and older, of those who died, and of persons with the highest Medicare expenditures. Most hospitalizations are for general medical care. Major procedures appear to be used with restraint in the very old and in persons in their last year of life.

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