Cherkin D C, Phillips W R, Berg A O
J Fam Pract. 1984 Sep;19(3):355-63.
Epidemiological research based in primary care practices has been hindered by the inability to estimate the number of persons served by individual practices. This study examines one method proposed as a means of estimating practice populations. The effectiveness of this "correction factor" method depends on uniformity in the proportion of persons visiting a physician in a two-year period across various sociodemographic subpopulations in the United States. The National Health Interview Survey data were examined for evidence of such uniformity. Within broad age-sex categories there was little variation by race, educational level, income, Spanish ancestry, or location of residence in the proportion reporting a physician visit within the previous two years. Although these results are encouraging, a number of problems remain before the "correction factor" method can be credibly used to estimate practice denominators.
基于初级保健机构开展的流行病学研究，一直因无法估算各机构服务的人数而受阻。本研究考察了一种被一种被提议用于估算机构服务人群数量的方法。这种“校正因子”方法的有效性，取决于美国不同社会人口亚群体中，在两年内就诊的人群比例是否具有一致性。研究分析了国家健康访谈调查的数据，以寻找这种一致性的证据。在宽泛的年龄 - 性别类别中，过去两年内报告有就诊经历的人群比例，在种族、教育水平、收入、西班牙裔血统或居住地点方面几乎没有差异。尽管这些结果令人鼓舞，但在“校正因子”方法能够可靠地用于估算机构分母之前，仍存在一些问题。
