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...

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Published in:World journal of gastroenterology : WJG 2015-02, Vol.21 (8), p.2460-2466
Main Authors: Hamashima, Chisato, Ogoshi, Kazuei, Narisawa, Rintarou, Kishi, Tomoki, Kato, Toshiyuki, Fujita, Kazutaka, Sano, Masatoshi, Tsukioka, Satoshi
Format: Article
Language:English
Subjects:
Adult
Aged
cancer
Early Detection of Cancer - methods
Female
Gastric
gastroint
Gastroscopy
Humans
Japan
Male
Middle Aged
Observational Study
Predictive Value of Tests
Prognosis
Radiography
Registries
screening
Mortality
Upper
Stomach Neoplasms - diagnostic imaging
Stomach Neoplasms - mortality
Stomach Neoplasms - pathology
Stomach Neoplasms - prevention & control
Time Factors
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Summary: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.
ISSN:1007-9327
2219-2840
DOI:10.3748/wjg.v21.i8.2460