Table 1. Bias, RMSE of the estimated excess hospitalization rates from the observed hospitalization rates with laboratory confirmed influenza infections.

Criteria	Bias	RMSE
QAIC	46.81	9.55
QBIC	46.81	9.55
PACF	40.66	8.3
GCV	25.93	5.29

Note. QAIC, quasi-Akaike information criterion; QBIC, quasi-Bayesian information criterion; PACF, partial autocorrelation function; GCV, generalized cross validation; RMSE, root-mean-square error.