McPherson K, Coulter A, Stratton I
Br Med J (Clin Res Ed). 1985 Sep 21;291(6498):797-9. doi: 10.1136/bmj.291.6498.797.
A random sample of 6000 people from eight general practices in and around Oxford was studied to ascertain their surgical histories and method of care received. The proportion of operations that were performed privately had increased with time and had a steep gradient according to social class. Different procedures had different likelihoods of being performed privately, but the age and sex of the patient had a non-significant association with private surgery. Adjustment for possible confounding variables using logistic analysis indicated that in the 1980s elective surgery is five times more likely to be performed privately than it was at the institution of the National Health Service.
对来自牛津及其周边地区八个全科医疗诊所的6000人进行了随机抽样研究,以确定他们的手术史和接受的护理方式。私立手术的比例随时间增加,并且根据社会阶层有一个陡峭的梯度。不同的手术有不同的私立手术可能性,但患者的年龄和性别与私立手术的关联不显著。使用逻辑分析对可能的混杂变量进行调整表明,在20世纪80年代,择期手术在私立机构进行的可能性是国家医疗服务体系建立时的五倍。