Abstract：Objective To understand the incidence of lung cancer and its change trend in Chongqing City, so as to provide reference for lung cancer prevention and control. Methods Cases of lung cancer from 2006 to 2014 were collected from cancer registered sites in Chongqing City. The indicators of lung cancer such as incidence, age-standardized incidence adjusted by China and world population, truncated incidence, cumulative rate, cumulative risk and annual percentage change were calculated. The significance of the change trend of lung cancer from 2006 to 2014 was identified by curve estimated exponential regression model. Results The incidence of lung cancer increased from 37.52/100,000 to 62.11/100,000 from 2006 to 2014 in Chongqing City, with an annual percentage change of 4.50%. The change trends of the incidence, age-standardized incidence by China and world population were not significantly different (P>0.05). The incidence in males was about 2.5 times that in females, and both increased significantly (P<0.05). The incidence in urban area was higher than in rural area. The incidence, age-standardized incidence by China and world population all showed significant upward change trends (P<0.05). The incidence of lung cancer increased with age and reached the top in the age group of 85～. The truncated incidence was between 50.64/100 ,000 and 60.61/100, 000. The cumulative risk of lung cancer was between 1.68% and 2.13%. The cumulative risk of lung cancer in males was 2.5 times that in females, and in urban area was 1.5 times that in rural area. The cumulative risk in male residents showed a significant downward trend (P<0.05). Conclusions The incidence of lung cancer is high in Chongqing City, 2006-2014. It shows increase trends in male residents and in urban areas.
2016, Vol. 23 
