Abstract
BACKGROUND: Infectious diseases remain one of the leading causes of death among children worldwide. This study aims to analyze the burden and trends of infectious diseases among children aged 0-14 years in China from 1990 to 2021, and evaluate their gender- and age-specific impacts. METHODS: This study utilizes data from the Global Burden of Disease (GBD) 2021 to analyze mortality, incidence, disability-adjusted life years (DALYs), age-standardized mortality rates (ASMR), age-standardized incidence rates (ASIR), and age-standardized DALY rates (ASDR) for infectious diseases in Chinese children. Statistical analysis was performed using R and ggplot2. RESULTS: From 1990 to 2021, China observed substantial declines in pediatric infectious disease burdens. Acute hepatitis mortality decreased from 7,349 deaths (95% UI:5,987-9,059) to 87 (EAPC: -13.78), with a fivefold reduction in ASMR. Enteric infections exhibited the steepest decline: incidence dropped by 86% (EAPC: -6.72), and ASDR fell from 2,257 to 67/100,000. HIV/AIDS deaths rose from 62 to 555 (EAPC:8.28), though post-2018 declines emerged. By 2021, lower respiratory infections remained the leading cause of death (ASMR:5.11/100,000), while upper respiratory infections had the highest incidence. Females showed faster reductions in enteric (EAPC: -7.44 vs. -6.20) and lower respiratory infections (EAPC: -10.39 vs. -9.76). Children under 5 faced the highest burden, particularly for lower respiratory infections (ASMR:13.02/100,000). CONCLUSION: The overall burden of infectious diseases among children in China has declined, especially for enteric infections and acute hepatitis. The burden of pediatric HIV/AIDS has also decreased in recent years, though adolescent HIV/AIDS education remains a key area of concern. Children under 5 continue to represent the highest burden group. While China's infectious disease control measures and immunization programs have played a vital role, further strengthening policies to address ongoing challenges is essential for effectively reducing the burden of infectious diseases and achieving the Healthy China 2030 goals.