Incidence of gastrointestinal stromal tumor in Chinese urban population: A national population‐based study

Background Information on incidence of gastrointestinal stromal tumor (GIST), the most common type of mesenchymal tumor in gastrointestinal tract, was limited in China. This study aimed to estimate the incidence of GIST in urban population from mainland China in 2016. Methods Urban Employee Basic Medical Insurance (UEBMI) and Urban Residence Basic Medical Insurance (URBMI) in China were used. The denominator of incidence was the total person‐years of insured individuals in 2016 in the database, covering approximately 0.43 billion individuals. The numerator was the number of incident GIST cases in 2016. Results The crude incidence in 2016 was 0.40 per 100,000 person‐years (95% CI, 0.06–1.03). Male incidence was higher than female incidence (0.44 vs. 0.36, rate ratio: 1.22, p
This is the first study using national data in mainland China, covering 0.43 billion population, to estimate the incidence of gastrointestinal stromal tumor. The incidence in 2016 was 0.40 per 100,000 person‐years, with the age trend of incidence becoming obviously steep after 50 years old and male incidence higher than female incidence.