结直肠癌手术的死亡风险是十分值得注意的。为简化结直肠癌的术前风险评估模型,研究人员建立了新的评分模型Cr OSS,并通过病例数据资料和回顾性数据分别进行了内部与外部验证。其结果表明,474例吉隆医院与389例西部医院的连续性结直肠手术患者总死亡率分别为5.16%和1.03%。外部验证结果表明,Cr OSS对死亡率预测是精准的。因此认为,Cr OSS是一个为风险分层的结直肠手术患者建立的简单可行的评估模型,该模型同时也在另外的三级医院验证成功〔ANZ J Surg. The risk of death from colorectal cancer surgery is very noteworthy. To simplify the preoperative risk assessment model for colorectal cancer, researchers created a new scoring model, Cr OSS, validated internally and externally using case data and retrospective data. The results showed that the total mortality of patients with continuous colorectal surgery in 474 cases of Jilong Hospital and 389 cases of Western Hospital were 5.16% and 1.03% respectively. External validation results show that the prediction of mortality by Cr OSS is accurate. Therefore, Cr OSS is a simple and viable assessment model for patients undergoing stratified colorectal surgery. This model is also validated in other tertiary hospitals [ANZ J Surg.