From: Predicting emergency department visits in a large teaching hospital
Variable | Estimate | Standard error | t-value | P-value | Significance level |
---|---|---|---|---|---|
(Intercept) | 248.7786337 | 45.4299646 | 5.476 | 5.67e−08 | <.001 |
Monday | 11.5596282 | 1.0533831 | 10.974 | <2e−16 | <.001 |
Friday | 8.4939099 | 1.1411012 | 7.444 | 2.32e−13 | <.001 |
Saturday | − 8.3012065 | 1.1525279 | − 7.203 | 1.26e−12 | <.001 |
Sunday | − 10.3104139 | 2.0117598 | -5.125 | 3.65e−07 | <.001 |
January | 2.3137231 | 1.4929930 | 1.550 | 0.121566 | N.S. |
May | − 3.2596707 | 1.4369325 | − 2.268 | 0.023540 | <.05 |
August | − 3.3159900 | 1.3688478 | − 2.422 | 0.015616 | <.05 |
Friday * Spring | 6.7473582 | 2.2399643 | 3.012 | 0.002667 | <0.01 |
Sunday * Summer | 3.4651415 | 2.0302316 | 1.707 | 0.088216 | N.S. |
Tuesday * Fall | − 4.7872202 | 1.7387084 | − 2.753 | 0.006020 | <0.01 |
Thursday * Fall | − 4.4414934 | 1.7371769 | − 2.557 | 0.010732 | <.05 |
Saturday * Winter | − 5.2470915 | 2.2009207 | − 2.384 | 0.017334 | <.05 |
Summer vacation week 1 + 2 | − 8.0769673 | 1.7847806 | − 4.525 | 6.85e−06 | <.001 |
Summer vacation week 3 + 4 | − 10.5916099 | 1.8959655 | − 5.586 | 3.09e−08 | <.001 |
Thursday * Summer vacation | 3.5492285 | 2.5010552 | 1.419 | 0.156225 | N.S. |
Friday * Vacation | − 6.5440714 | 2.9636941 | − 2.208 | 0.027495 | <.05 |
Holiday * Vacation | − 5.0010994 | 3.2588828 | − 1.535 | 0.125239 | N.S. |
Monday * Holiday | − 21.0261795 | 3.6481167 | − 5.764 | 1.14e−08 | <.001 |
Thursday * Holiday | − 21.0240305 | 5.8145506 | − 3.616 | 0.000316 | <.001 |
Wednesday * Holiday | − 19.0692120 | 7.1177032 | − 2.679 | 0.007519 | <0.01 |
Friday * Holiday | − 27.1374017 | 9.8894943 | − 2.744 | 0.006191 | <0.01 |
Carnival | 10.7865927 | 4.1303939 | 2.612 | 0.009167 | <0.01 |
Time trend | 0.0097392 | 0.0013999 | 6.957 | 6.77e−12 | <.001 |
Sunday * Time trend | − 0.0053839 | 0.0034610 | − 1.557 | 0.120165 | N.S. |
Summer vacation * Time trend | − 0.0125371 | 0.0026263 | − 4.772 | 2.12e−06 | <.001 |
Maximum Temperature | 0.0360680 | 0.0088407 | 4.080 | 4.92e−05 | <.001 |
Winter * Mean temperature | − 0.0568999 | 0.0255135 | − 2.527 | 0.011666 | <.05 |
Radiation | 0.0029971 | 0.0009226 | 3.249 | 0.001203 | <0.01 |
Maximum pressure | − 0.0155889 | 0.0044522 | − 3.501 | 0.000486 | <.001 |
Winter * Maximum pressure | 0.0007034 | 0.0001660 | 4.238 | 2.49e−05 | <.001 |
Precipitation duration | 0.0407058 | 0.0162960 | 2.498 | 0.012674 | <.05 |
Summer * Precipitation (automatic stations) | − 0.312219 | 0.0081872 | − 3.814 | 0.000147 | <.001 |
Maximum humidity | − 0.1241583 | 0.0719627 | − 1.725 | 0.084820 | N.S. |
Maximum visibility | − 0.0086327 | 0.0042522 | − 2.030 | 0.042636 | <.05 |
Hours of fog | 0.4447461 | 0.1570946 | 2.831 | 0.004744 | <.01 |
Winter * hours of snow | − 1.2095289 | 0.3781155 | − 3.199 | 0.001429 | <.01 |
Residual standard error | 9.668 on 884 degrees of freedom | ||||
Multiple R-squared | 0.5307 | ||||
Adjusted R-squared | 0.5115 | ||||
F-statistic | 27.76 on 36 and 884 degrees of freedom, P-value: < 2.2e−16 |