Thyroid cancer incidence and mortality in Shanghai China 2016 and trends from 2002 to 2016

Objective To investigate the thyroid cancer incidence and mortality in Shanghai 2016 and trend change from 2002 to 2016. Methods Cases of thyroid cancer diagnosed, and thyroid cancer deaths during 2002 to 2016 were included from the population-based cancer registry and Vital Statistics System of Shanghai Municipal Center for Disease Control and Prevention. Both incidence and mortality of thyroid cancer were stratified based on the year when diagnosed or died, and on gender and age, and were analyzed. Both case number and death number, and crude rate, age-specific rate, age-standardized and other rate were calculated. Changing trends in incidence and mortality, crude rate, age-specific rate and age-standardized rate were estimated. The annual percent change(APC) of age-standardized rates of both incidence and mortality was estimated by Joinpoint analysis. The case number and proportion of thyroid cancer in different diagnosis years with some diagnostic character were also calculated. Age-standardized rates of