Daviglus M L, Liu K, Greenland P, Dyer A R, Garside D B, Manheim L, Lowe L P, Rodin M, Lubitz J, Stamler J
Department of Preventive Medicine, Northwestern University Medical School, Chicago, IL 60611, USA.
N Engl J Med. 1998 Oct 15;339(16):1122-9. doi: 10.1056/NEJM199810153391606.
People without major risk factors for cardiovascular disease in middle age live longer than those with unfavorable risk-factor profiles. It is not known whether such low-risk status also results in lower expenditures for medical care at older ages. We used data from the Chicago Heart Association Detection Project in Industry to assess the relation of a low risk of cardiovascular disease in middle age to Medicare expenditures later in life.
We studied 7039 men and 6757 women who were 40 to 64 years of age when surveyed between 1967 and 1973 and who survived to have at least two years of Medicare coverage in 1984 through 1994. Men and women classified as being at low risk for cardiovascular disease were those who had the following characteristics at the time they were initially surveyed: serum cholesterol level, <200 mg per deciliter (5.2 mmol per liter); blood pressure, < or =120/80 mm Hg; no current smoking; an absence of electrocardiographic abnormalities; no history of diabetes; and no history of myocardial infarction. We compared Medicare costs for the 279 men (4.0 percent) and 298 women (4.4 percent) who had this low-risk profile with those for the rest of the study group, who were not at low risk. Health Care Financing Administration charges for services to Medicare beneficiaries were used to estimate average annual health care costs (total costs, those for cardiovascular diseases, and those for cancer).
Average annual health care charges were much lower for persons at low risk - the total charges for the men at low risk were less than two thirds of the charges for the men not at low risk ($1,615 less); for the women at low risk, the charges were less than one half of those for the women not at low risk ($1,885 less). Charges related to cardiovascular disease were lower for the low-risk groups of men and women than for those not at low risk (by $979 and $556, respectively), and charges related to cancer were also lower (by $134 and $189).
People with favorable cardiovascular risk profiles in middle age had lower average annual Medicare charges in older age. Having optimal status with respect to major cardiovascular risk factors may result not only in greater longevity but also in lower health care costs.
中年时无心血管疾病主要危险因素的人比有不良危险因素的人寿命更长。尚不清楚这种低风险状态是否也会导致老年时医疗费用降低。我们利用来自芝加哥心脏协会工业检测项目的数据,评估中年时心血管疾病低风险与晚年医疗保险费用之间的关系。
我们研究了7039名男性和6757名女性,他们在1967年至1973年接受调查时年龄在40至64岁之间,并且存活至1984年至1994年至少有两年的医疗保险覆盖。被归类为心血管疾病低风险的男性和女性是那些在初次调查时具有以下特征的人:血清胆固醇水平<200毫克/分升(5.2毫摩尔/升);血压<或=120/80毫米汞柱;目前不吸烟;无心电图异常;无糖尿病史;无心肌梗死史。我们将具有这种低风险特征的279名男性(4.0%)和298名女性(4.4%)的医疗保险费用与研究组中其余非低风险人群的费用进行了比较。使用医疗保健财务管理局向医疗保险受益人收取的服务费用来估计平均每年的医疗保健费用(总费用、心血管疾病费用和癌症费用)。
低风险人群的平均每年医疗保健费用要低得多——低风险男性的总费用不到非低风险男性费用的三分之二(少1615美元);对于低风险女性,费用不到非低风险女性费用的一半(少1885美元)。低风险男性和女性组与心血管疾病相关的费用低于非低风险人群(分别少979美元和556美元),与癌症相关的费用也较低(分别少134美元和189美元)。
中年时心血管风险状况良好的人在老年时平均每年的医疗保险费用较低。在主要心血管危险因素方面处于最佳状态不仅可能导致更长的寿命,还可能降低医疗保健成本。