a significant trendP < 0.001
A significant trend of increase in BMI was found in both sexes between 2011 and 2020( P < 0.001).
A significant trend of increase in BMI was found in both sexes between 2011 and 2020( P < 0.001).
Abstract Background During past decades, there was a positive trend in growth and nutrition status of adolescents in China, but there was significant regional disparity.