Impact of endoscopic screening on mortality reduction from gastric cancer

AIM:To investigate mortality reduction from gastric cancer based on the results of endoscopic screening.METHODS:The study population consisted of participants of gastric cancer screening by endoscopy,regular radiography,and photofluorography at Niigata city in 2005.The observed numbers of cumulative deaths from gastric cancers and other cancers were accumulated by linkage with the Niigata Prefectural Cancer Registry.The standardized mortality ratio(SMR)of gastric cancer and other cancer deaths in each screening group was calculated by applying the mortality rate of the reference population.RESULTS:Based on the results calculated from the mortality rate of the population of Niigata city,the SMRs of gastric cancer death were 0.43(95%CI:0.30-0.57)for the endoscopic screening group,0.68(95%CI:0.55-0.79)for the regular radiographic screening group,and 0.85(95%CI:0.71-0.94)for the photofluorography screening group.The mortality reduction from gastric cancer was higher in the endoscopic screening group than in the regular radiographic screening group despite the nearly equal mortality rates of all cancers except gastric cancer.CONCLUSION:The 57%mortality reduction from gastric cancer might indicate the effectiveness of endoscopic screening for gastric cancer.Further studies and prudent interpretation of results are needed.

Comparing mass screening techniques for gastric cancer in Japan

瞄准：讨论为胃的癌症屏蔽的内视镜的质量的功效。方法：在这研究使用的数据是从 2002 ～ 2004 在 Niigata 城市里为胃的癌症屏蔽程序的质量的结果。参加者的数字在 2002 是 35,089， 34,557 在 2003 和 36,600 在 2004。发现比率在内视镜的文件和组织检查所见的双检查以后指了胃的癌症的最后的诊断。识别胃的癌症的一个盒子的费用为每个屏蔽节目和另外的仔细的检查基于全部的开销被计算。结果：从有内视镜检查法的单个屏蔽节目的分析，有X光检查( ISX )的单个屏蔽节目和有在胃的癌症的发现比率的参考的荧光屏图象摄影( MSP )的集体屏蔽节目，内视镜的检查是为检测早胃的癌症的最好，发现比率在 2004 是0.87%，约 2.7 和 4.6 ISX 和 MSP 组比那些高预定。另外，这个新奇方法是关于识别胃的癌症的一个盒子的费用的最便宜的工具，它被估计是在 2004 的 1,608,000 日本日元。结论：内视镜的集体屏蔽是一个有希望的方法并且如果，能有效地被使用有技能的 endoscopists 的一个足够的数字对职员变得可得到系统并且如果城市办公室支持它。