Cooper Gregory S, Chak Amitabh, Koroukian Siran
Division of Gastroenterology, Department of Medicine, University Hospitals of Cleveland, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106-5066, USA.
Am J Med. 2005 Dec;118(12):1413. doi: 10.1016/j.amjmed.2005.06.019.
National-level data on the proportion of colonoscopies in routine practice that result in polyp detection are limited. Our goal was to determine the diagnostic yield of colonoscopy among population subgroups. We reviewed Medicare claims data for all fee-for-service beneficiaries 65 years or older who underwent colonoscopy in 1999. With the use of diagnosis and procedure codes, the proportion of procedures with polyps was estimated. Three different criteria for polyp detection were used. Approximately 1.8 million colonoscopy procedures were identified. Depending on the specific criteria used, 23.9% to 35.7% of examinations noted polyps. The detection rate was highest in younger patients, men, and whites. The apparent yield of colonoscopy in terms of polyp detection is at least 24%. These data may be informative in predicting resource allocation for therapeutic procedures associated with colonoscopy. Future studies should determine the use and yield of serial colonoscopies for polyp surveillance.
关于常规结肠镜检查中发现息肉比例的国家级数据有限。我们的目标是确定不同人群亚组中结肠镜检查的诊断率。我们回顾了1999年所有接受结肠镜检查的65岁及以上按服务收费受益人的医疗保险理赔数据。利用诊断和操作编码，估算了发现息肉的操作比例。采用了三种不同的息肉检测标准。共识别出约180万例结肠镜检查操作。根据所使用的具体标准，23.9%至35.7%的检查发现了息肉。年轻患者、男性和白人的检测率最高。就息肉检测而言，结肠镜检查的表观检出率至少为24%。这些数据可能有助于预测与结肠镜检查相关的治疗程序的资源分配。未来的研究应确定用于息肉监测的系列结肠镜检查的使用情况和检出率。
