Adjusting for reporting delay in cancer incidence when combining different sets of cancer registries
Adjusting for reporting delay in cancer incidence when combining different sets of cancer registries
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DOI：
10.1002/bimj.201100191
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发表时间：
2013-09-01
影响因子：
1.7
通讯作者：
Feuer, Eric J.
中科院分区：
文献类型：
--
作者：
Huang, Lan;Midthune, Douglas;Feuer, Eric J.
癌症登记处收集癌症发病率数据，可用于计算人群中的发病率并跟踪随时间的变化。为了使发病率准确，及时报告确诊病例至关重要。登记处通常允许在发布特定诊断年份的初始病例数之前报告诊断病例的固定时间（例如两年）。然而，不可避免的是，在最初的统计公布后，又报告了额外的病例;这些额外的病例被纳入随后的公布中，随着时间的推移，这些公布变得更加完整，而基于早期公布的发病率将低估真实的发病率。已经开发了统计方法来估计报告延迟的分布（直到诊断病例被报告的时间量），并纠正由于报告延迟而低估的发病率。由于观察到的报告延迟必须小于登记处收集数据的时间长度，因此大多数方法估计截断延迟分布。这些方法可以应用于在同一诊断年开始收集数据的一组登记。在本文中，我们扩展的方法，开始收集数据，在两个不同的诊断年的两组登记（因此，延迟分布截断在不同的时间）。我们将所提出的方法应用于美国国家癌症研究所的监测流行病学和最终结果（SEER）计划的数据，该计划是美国癌症登记处的一个联盟，包括1981年开始收集数据的9个登记处和1992年开始收集数据的4个登记处。我们使用该方法获得黑色素瘤、肝癌和霍奇金淋巴瘤的延迟校正发病率。
Cancer registries collect cancer incidence data that can be used to calculate incidence rates in a population and track changes over time. For incidence rates to be accurate, it is critical that diagnosed cases be reported in a timely manner. Registries typically allow a fixed amount of time (e.g. two years) for diagnosed cases to be reported before releasing the initial case counts for a particular diagnosis year. Inevitably, however, additional cases are reported after the initial counts are released; these extra cases are included in subsequent releases that become more complete over time, while incidence rates based on earlier releases will underestimate the true rates. Statistical methods have been developed to estimate the distribution of reporting delay (the amount of time until a diagnosed case is reported) and to correct incidence rates for underestimation due to reporting delay. Since the observed reporting delays must be less than the length of time the registry has been collecting data, most methods estimate a truncated delay distribution. These methods can be applied to a group of registries that began collecting data in the same diagnosis year. In this paper, we extend the methods to two groups of registries that began collecting data in two different diagnosis years (so that the delay distributions are truncated at different times). We apply the proposed method to data from the National Cancer Institute's Surveillance Epidemiology and End Results (SEER) program, a consortium of U.S. cancer registries that includes nine registries with data collection beginning in 1981 and four registries with data collection beginning in 1992. We use the method to obtain delay-adjusted incidence rates for melanoma, liver cancer, and Hodgkin lymphoma.