Analysis of the incidence of lung cancer in Qidong, Jiangsu Province from 1993 to 2012

ObjectiveTo analyze the incidence of lung cancer in Qidong, Jiangsu Province of China from 1993 to 2012.

MethodsThe clinical data of lung cancer from 1993 to 2012 for patients with census registration in Qidong were sorted out from the cancer registration center in Qidong. The annual percent change(APC) model was used to analyze the trend over time for the incidence of lung cancer. The SAS 9.4 software and the Joinpoint Regression Program 4.3.1.0 were used to implement data analyses.

ResultsA total of 11 895 new cases of lung cancer were diagnosed in Qidong, Jiangsu province from 1993 to 2012. Among them, 8 629 were male cases and 3 266 were female cases and the median age for these patients was 68.41. The crude incidence rate for lung cancer for males was 90.06/100 000, which was significantly higher than that for females, i.e., 29.94/100 000(Poisson distribution test, P < 0.01). The standardized incidence rate of lung cancer for male was 52.92/100 000, which was significantly higher than that for females, i.e. 18.52/100 000(Poisson distribution test, P < 0.01). The APC for the crude incidence rate for lung cancer was 6.1 from 1993 to 2012 and the APC for the standardized incidence rate for lung cancer was 5.5.

ConclusionThe incidence of lung cancer increases in Qidong on a yearly basis from 1993 to 2012, with the incidence thereof for males being significantly higher than that for females.