Rosenfeld K, Luft H S, Garnick D W, McPhee S J
Am J Public Health. 1987 Apr;77(4):498-500. doi: 10.2105/ajph.77.4.498.
Data from a national sample of hospitals were used to explore reasons for improved in-hospital survival rate for coronary artery bypass graft (CABG) surgery between 1972 and 1982. Increases in annual volumes of surgery explain a large fraction of the decline in death rates. The residual can be attributed to improved techniques, experience, and other factors, even though more operations were done on older patients and women in 1982 than 1972.
来自全国医院样本的数据被用于探究1972年至1982年间冠状动脉搭桥术(CABG)住院生存率提高的原因。每年手术量的增加解释了死亡率下降的很大一部分原因。剩余部分可归因于技术改进、经验积累及其他因素,尽管1982年比1972年对老年患者和女性进行了更多手术。