Research Article

Long-Term Prediction of Emergency Department Revenue and Visitor Volume Using Autoregressive Integrated Moving Average Model

Table 3

Parameters from autoregressive integrated moving average (ARIMA) model (1, 0, 0) for ED revenue (January, 2005โ€“December, 2008).

Parameters Coefficient ๐‘‡ ๐‘ƒ value

Mean maximum temperature 0.1176 2.77 0.009
Mean minimum temperatureโˆ’0.0736โˆ’5.29<0.001
Relative humidity 0.0672 4.33<0.001
Accumulated rainfall 0.0008 4.18<0.001
Nontrauma visits 0.0040 3.38 0.002
Trauma visits 0.0098 5.38<0.001
Pediatric visitsโˆ’0.0004โˆ’0.78 0.442
Stock index fluctuationโˆ’0.0002โˆ’0.74 0.463