McMillan A
Office of Research and Demonstrations, Health Care Financing Administration, Baltimore, MD 21207.
Health Care Financ Rev. 1993 Fall;15(1):135-46.
This study examines Medicare health maintenance organization (HMO) enrollment under the Tax Equity and Fiscal Responsibility Act (TEFRA) of 1982 (Public Law 97-248) from 1986 to 1993. It shows that there was moderate growth in the number of Medicare beneficiaries participating in the TEFRA risk program, reaching 1 in 20 beneficiaries in 1993. Medicare HMO enrollment is heavily concentrated in a few large plans, resulting in heavy concentrations geographically. California and Florida accounted for over one-third of Medicare HMO enrollees. One-half of the States have no Medicare HMO enrollment and one-fifth of the States have fewer than 15,000 Medicare HMO enrollees.
本研究考察了1986年至1993年期间根据1982年《税收公平与财政责任法》（TEFRA，公法97 - 248）参与医疗保险健康维护组织（HMO）的参保情况。研究表明，参与TEFRA风险计划的医疗保险受益人数量呈适度增长，到1993年达到每20名受益人中有1人参与。医疗保险HMO的参保情况高度集中于少数几个大型计划，导致地域上的高度集中。加利福尼亚州和佛罗里达州的医疗保险HMO参保人数占总数的三分之一以上。一半的州没有医疗保险HMO参保人员，五分之一的州医疗保险HMO参保人数少于15,000人。
