Disparities, trends, and projections of cancer mortality burden related to high body mass index in China from 2005 to 2030.

Abstract

High body mass index (BMI), defined as a BMI greater than or equal to 20-25 kg/m², is considered a rapid-increased risk factor for cancer. Based on comparative risk assessment framework, we elaborate the mortality burden of cancers attributable to high BMI in China. In 2018, we estimated that there were 85.19 thousand cancer-related deaths and 2,220.01 thousand cancer-related years of life lost (YLLs) attributable to high BMI in China. Of these, 62.14 thousand deaths and 1,698.81 thousand YLLs were from males. With higher socioeconomic levels, the burden generally increases initially and then decreases. By 2030, the projected age-standardized mortality rate attributable to high BMI in China will be 6.67 per 100,000 people, increased by 3.25% from that in 2005. In summary, the swift increase and substantial disparities in the cancer burden attributable to high BMI underscore the urgent need for evidence-based policies and interventions in China.