Table 2.
Parameter estimates for Poisson regression models by hospital
| Parameter | Coeff. | SE | 95% CI | Hypothesis Test | Exp(B) | 95% CI | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| Lower | Upper | Wald Chi-Square | df | Sig. | Lower | Upper | ||||
| Hospital A | ||||||||||
| (Intercept) | 1.455 | 0.051 | 1.356 | 1.554 | 823.996 | 1 | <0.0001 | 4.285 | 3.880 | 4.732 |
| Bed cover | -0.737 | 0.008 | -0.754 | -0.721 | 7683.707 | 1 | <0.0001 | 0.478 | 0.471 | 0.486 |
| Hand washing compliance rate | -0.005 | 0.000 | -0.006 | -0.004 | 145.485 | 1 | <0.0001 | 0.995 | 0.994 | 0.996 |
| Length of stay (days) | -0.005 | 0.001 | -0.007 | -0.003 | 29.166 | 1 | <0.0001 | 0.995 | 0.993 | 0.997 |
|
| ||||||||||
| Hospital B | ||||||||||
| (Intercept) | -18.353 | 0.485 | -19.304 | -17.403 | 1432.926 | 1 | <0.0001 | 0.000 | 0.000 | 0.000 |
| Bed cover | -0.692 | 0.026 | -0.743 | -0.641 | 700.369 | 1 | <0.0001 | 0.500 | 0.475 | 0.527 |
| Hand washing compliance rate | 0.167 | 0.005 | 0.157 | 0.176 | 1113.763 | 1 | <0.0001 | 1.181 | 1.170 | 1.193 |
| Length of stay (days) | 0.053 | 0.002 | 0.049 | 0.057 | 667.882 | 1 | <0.0001 | 1.055 | 1.051 | 1.059 |