Abstract
Cixian is one of the high‐risk areas for upper gastrointestinal cancer in China and the world. From 2005, comprehensive population‐based screening for upper gastrointestinal cancers has been conducted in Cixian. The aim of this study was to investigate population‐based cancer survival from 2003 to 2013 and to explore the effect of screening on upper gastrointestinal cancer survival in Cixian. Observed survival was estimated using the life table method. The expected survival from the general population was calculated using all‐cause mortality data from the population of Cixian with the EdererII method. Cixian cancer registry, with a total coverage of 6.88 million person years, recorded 19,628 cancer patients diagnosed during 2003–2013. In Cixian, from 2003 to 2013, there were 19,628 newly cancer cases and 13,984 cancer deaths, with an incidence rate of 285.37/100,000 and mortality rate of 203.31/100,000. The overall five‐year relative cancer survival for patients diagnosed in Cixian in 2003–2013 was 22.53%. The relative survival for all cancers combined in Cixian had an overall upward trend from 2003 to 2013. Among upper gastrointestinal cancer in Cixian, the five‐year relative survival for cardia gastric cancer was highest at 30.42%, followed by oesophageal cancer at 25.37% and noncardia gastric cancer at 18.93%. In 2013, the five‐year relative survival for oesophageal cancer, cardia gastric cancer, and noncardia gastric cancer patients aged 45–69 years was 39.97% (95% CI: 34.52–45.43%), 51.74% (95% CI: 42.09–60.86%), and 37.43% (95% CI: 26.93–48.17%), respectively, the absolute values increasing 14.11%, 16.71%, and 14.92% compared with that in 2003. There is an increasing trend in overall survival for upper gastrointestinal cancer with early screening and treatment of cancer in Cixian.
Highlights
Cixian is one of the high-risk areas for upper gastrointestinal cancer in China and the world
Because of the accurateness of the Cixian cancer data, the incidence and mortality data were published in Cancer Incidence in Five Continents (CI5VIII, CI5X, and CI5XI)
With the importance of cancer surveillance increased, data with the follow-up information required by National Central Cancer Registry (NCCR) for surveillance of cancer survival were collected by the Cixian Cancer Registry
Summary
Cixian is one of the high-risk areas for upper gastrointestinal cancer in China and the world. The Cixian Cancer Registry was the first population-based cancer registry in Hebei Province and was established in 1974. Studies on cancer incidence and mortality trends in Cixian have previously been reported in detail [1–5]. Data for cancer incidence and mortality in Cixian were published in Cancer Incidence in Five Continents (CI5VIII, CI5X and CI5XI) [6–8]. The incidence of oesophageal cancer in Cixian has shown a sharp downward trend with the support of the Chinese government and extensive efforts for cancer prevention and control [5]. There is currently little cancer survival data from Cixian. This study was designed to examine upper gastrointestinal cancer survival profile and its relationship to cancer
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