The controversy stems from the kind of evidence that is used. Sackett implies, but does not stipulate, that epidemiological evidence (findings from randomized controlled trials and large-cohort studies carried out over many years) should underpin doctors’ decisions about patients – and, one hopes, in consultation with them.
争议来自什么样的证据被使用。萨克特暗示（但并不确定）流行病学证据（从随机控制实验和多年期大群体研究中发现）应该成为医生诊疗病人的决策基础——人们希望咨询病情亦是如此。