Table 3. Parameters of ARIMA model of urinary tract catheter-related urinary tract infections in the Department of Critical Care Medicine.

Model	BIC	R2	Root mean square, RMSE	Ljuing-Box Q		Parameter estimation	Error SE	t	P
				Statistics	P
ARIMA (1,0,1)	0.757	0.066	1.296	14.517	0.560
Constant						20.572	20.124	1.022	0.310
AR (1)						0.379	0.378	1.002	0.320
MA (1)						0.091	0.407	0.223	0.824
ARIMA (1,0,0)	0.684	0.065	1.288	15.042	0.592
Constant						20.572	19.319	1.065	0.291
AR (1)						0.290	0.115	2.518	0.014
ARIMA (0,0,1)	0.714	0.036	1.307	18.537	0.356
Constant						20.572	18.322	1.123	0.265
MA (1)						−0.317	0.112	−2.825	0.006

ARIMA, autoregressive integrated moving average; BIC, Bayesian Information Criterion.