National Cancer Registry, Cork Airport Business Park, Cork, Ireland,
Ir J Med Sci. 2014 Jun;183(2):219-24. doi: 10.1007/s11845-013-0993-z. Epub 2013 Aug 17.
Cancer registries play a major role in cancer control, including quantifying the burden of cancer in the population, informing health service planning, and evaluating service provision. Registries must achieve a high level of completeness of case ascertainment.
Completeness of case ascertainment for the National Cancer Registry (NCR) in Ireland was estimated.
For all invasive cancers, and the four most common sites, we used two quantitative methods which use information from death certificates to obtain estimates of completeness of registration-the Lincoln-Petersen (LP) estimator (which provides a lower bound estimate) and the flow method (which estimates completeness at a fixed time-point, in this case 5 years). Data were extracted at the end of 2010. Independent case ascertainment was used to assess completeness of breast cancer registration in the 50-64 age group and of rectal cancer in surgical patients diagnosed in 2007.
Completeness of case ascertainment was >99 % for the breast screening age-group and for surgical rectal cancer cases. A lower bound on completeness of case ascertainment for all invasive cancers excluding non-melanoma skin cancers is 94.3 % using the LP estimator. The estimate from the flow method is 97 % after 5 years, [95 % confidence interval (96.2 %, 97.7 %)]. Five-year levels of completeness for the four commonest cancers using the flow method were: colorectal, 97.4 %; lung, 98.7 %; prostate, 95.8 % and breast, 98.0 %.
The estimated levels of completeness for the NCR are satisfactory. Further work is required to compare the methods used.
癌症登记处在癌症控制中发挥着重要作用，包括量化人群中的癌症负担、为卫生服务规划提供信息以及评估服务提供情况。登记处必须实现病例确定的高度完整性。
估计爱尔兰国家癌症登记处（NCR）的病例确定完整性。
对于所有浸润性癌症和四个最常见的部位，我们使用了两种定量方法，这些方法利用死亡证明中的信息来获得登记完整性的估计值-林肯-彼得森（LP）估计值（提供下限估计值）和流量法（估计固定时间点的完整性，在这种情况下为 5 年）。数据于 2010 年底提取。独立的病例确定用于评估 50-64 岁年龄组乳腺癌登记的完整性以及 2007 年诊断的手术直肠癌患者的登记完整性。
对于乳腺筛查年龄组和手术直肠癌病例，病例确定的完整性>99％。使用 LP 估计值，所有非黑色素瘤皮肤癌除外的浸润性癌症的病例确定完整性的下限为 94.3％。5 年后，流量法的估计值为 97％[95％置信区间（96.2％，97.7％）]。使用流量法的四种最常见癌症的 5 年完整性水平为：结直肠癌，97.4％;肺癌，98.7％;前列腺癌，95.8％和乳腺癌，98.0％。
NCR 的估计完整性水平令人满意。需要进一步工作来比较所使用的方法。
