title: Health services use among the elderly under alternative health service delivery systems.
abstract: This article compares patterns of health care utilization for hospitalizations and ambulatory care in a sample of 1855 urban, elderly, community residents who report obtaining their health care from one of four types of arrangements: a fee-for-service (FFS) physician, a hospital-based health maintenance organization, a network model HMO, or a preferred provider organization (PPO). Utilization rates reported by respondents at six month intervals over three years were adjusted for health and socioeconomic characteristics of enrollees. PPO plan members consistently have mean and total lengths of hospital stay one-third to one-half those of the others. Although rates of use of particular categories of ambulatory care vary across systems of care, total ambulatory care rates are highest for network model HMO plan members. Specific features of alternative delivery systems, rather than general model types, may have an impact on utilization rates and the costs of care.
authors.affiliation: Department of Epidemiology and Social Medicine, Montefiore Medical Center, Bronx, NY.
authors.forename: C
authors.initials: C
authors.lastname: Thomas
authors.forename: H R
authors.initials: HR
authors.lastname: Kelman
mesh_terms: D000368:Aged; D005251:Fees, Medical; D005260:Female; D006279:Health Maintenance Organizations / Q000706:statistics & numerical data*; D006299:Health Services for the Aged / Q000706:statistics & numerical data*; D006760:Hospitalization; D006801:Humans; D008297:Male; D008329:Managed Care Programs / Q000706:statistics & numerical data*; D009519:New York City; D011243:Preferred Provider Organizations / Q000706:statistics & numerical data*; D011331:Private Practice / Q000706:statistics & numerical data*; D013223:Statistics as Topic; D014505:Urban Population