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To analyze the current status and trends of the burden of respiratory syncytial virus (RSV) lower respiratory tract infections in China from 1992 to 2021, providing a reference for the prevention and control of RSV infections in the country.
The burden of disease was assessed using disability-adjusted life years (DALYs). Data on DALYs for RSV lower respiratory tract infections in China from 1992 to 2021 were extracted from the 2021 Global Burden of Disease Study database. Join point regression analysis was employed to evaluate trends in disease burden, and an age-period-cohort (APC) model was constructed to explore the impacts of age, period, and birth cohort on disease burden.
In 2021, the DALYs rate for RSV lower respiratory tract infections in China was 3.08 per 100 000, with the highest DALYs number (35 400 person-years) and rate (45.63 per 100 000) observed in the 0-4 age group, followed by those aged 65 and older (5 300 person-years, 2.68 per 100 000). From 1992 to 2021, the DALYs rate for RSV lower respiratory tract infections in China showed a declining trend (AAPC=-12.96%, P<0.001), with the DALYs rate remaining relatively stable from 2012 to 2016 (AAPC=-1.61%, P=0.198), while other intervals exhibited a downward trend, particularly from 2019 to 2021, which had the most significant decline (AAPC=-57.90%, P<0.001). Among different age groups, the 0-4 age group experienced the largest decrease in DALYs rate (AAPC=-12.02%, P<0.001), whereas the decline was the smallest in those aged 65 and older (AAPC=-5.19%, P<0.001). The APC model indicated that age, period, and birth cohort effects influenced the changes in DALYs rates for RSV lower respiratory tract infections in China, with DALYs rates initially decreasing and then increasing with age, while declining with advancing periods and shifting birth cohorts.
The burden of RSV lower respiratory tract infections in China showed a downward trend from 1992 to 2021, predominantly affecting children and the elderly.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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