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[Analysis on incidence and mortality of ovarian cancer in Jiangsu province, 2006-2015].

Objective: To estimate the incidence/mortality of ovarian cancer in 2015 and the incidence/mortality trend of ovarian cancer from 2006 to 2015 in Jiangsu province, and provide evidence for prevention and treatment of ovarian cancer in Jiangsu. Methods: The incidence and death data of cancer in Jiangsu from 2006 to 2015 collected from 35 cancer registries and verified by Jiangsu provincial CDC in 2018 were used for the extraction of ovarian cancer data. The data were stratified by urban and rural, gender and age groups. The crude rates of incidence and mortality, age-standardized incidence/mortality rates (ASIR/ASMR), cumulative incidence/mortality rates (0-74 years) and truncated incidence/mortality rates (35-64 years) of ovarian cancer were calculated. Chinese population census in 2000 and world Segi's standard population were used for the calculations of age-standardized incidence/mortality rates. Software Joinpoint 4.7.0.0 was used to analyze the annual percentage changes (APCs) of two rates from 2006 to 2015. Results: It was estimated that 2 229 ovarian cancer cases occurred in Jiangsu in 2015, accounting for 2.23% of all cancer cases and ranking 12(th) of cancer incidence in women. The crude incidence rate was 5.91/100 000, the age-standardized incidence rates by Chinese standard population (ASIRC) and by world standard population (ASIRW) were 4.01/100 000 and 3.81/100 000, respectively. The cumulative incidence rate (0-74 years) was 0.42%. It was estimated that 1 239 deaths of ovarian cancer occurred in Jiangsu in 2015, accounting for 2.18% of all cancer deaths and ranking 13(th) of cancer mortality in women. The crude mortality rate was 3.29/100 000, the ASMRC and ASMRW were 1.99/100 000 and 1.96/100 000, respectively. The cumulative mortality rate (0-74 years) was 0.24%. The APCs of crude incidence rate and crude mortality rate were 4.66% (95%CI: 2.11%-7.29%) and 7.45% (95%CI: 5.46%-9.47%) (all P<0.05). The APCs of ASIRC and ASIRW were 2.30% (95%CI: -0.32%-4.99%) and 2.41% (95%CI: -0.29%-5.20%) (all P>0.05), and the APCs of ASMRC and ASMRW were 4.43% (95%CI: 2.54%-6.36%) and 4.55% (95%CI: 2.58%-6.57%) (all P<0.05). Conclusions: The incidence and mortality of ovarian cancer in Jiangsu were at low levels, and were higher in urban areas than in rural areas. The crude incidence and mortality rates increased, and age-standardized incidence rate was stable, but age-standardized mortality rate increased obviously.