Table 5.
Autoregressive integrated moving average (ARIMA) and transfer function models for estimating percentage of cefotaxime resistance among Escherichia coli isolated at National Taiwan University Hospital, 1991–2003
| Antibiotic use | Parameter (SE)a | T-ratio | P |
|---|---|---|---|
| ARIMA model for percentage of cefotaxime resistance | |||
| MA | 0.9814 (0.0346) | 28.36448 | <0.001 |
| Transfer function for cefotaxime resistance | |||
| Cefotaxime use | 0.9815 (0.03447) | 28.4748 | <0.001 |
| MA | 0.9814 (0.03675) | 26.7021 | <0.001 |
SE, standard error; MA, moving average term, representing disturbance and abrupt changes of resistance.
a
Size and direction of the effect.