Mean absolute percentage difference of excess hospitalization rates from annual hospitalization rates of laboratory confirmed infections in a pediatric cohort.

Excess rates were estimated from the log-linear Poisson model using a Bayesian approach with the virus proxies of age-specific positive counts at the different lag weeks.本研究采用贝叶斯方法（Bayesian approach），以不同滞后周的分年龄组阳性计数作为病毒代理变量（virus proxies），基于对数线性泊松模型（log-linear Poisson model）估算超额率。