Table 4 Multivariate analyses for the association between pre- and post-intervention outcomes in different patient and ED characteristic subgroups
Measure of association | P-value | P-value for interaction | |
|---|---|---|---|
Transportation (min) | |||
Adjusted Beta (95% CI) | |||
ESI | |||
≤ 3 (n = 8080) | −15.17 (−16.07; −14.27) | <0.0001 | <0.0001 |
> 3 (n = 2983) | −7.63 (−8.41; −6.84) | <0.0001 | |
Disposition | |||
Admitted (n = 2886) | −19.61 (−21.46; −17.76) | <0.0001 | <0.0001 |
Discharged (n = 8177) | −10.65 (−11.31; −9.99) | <0.0001 | |
Radiographer Shift | |||
Day (n = 5451) | −11.98 (−12.91; −11.05) | <0.0001 | 0.002 |
Evening (n = 5612) | −14.01 (−15.05; −12.98) | <0.0001 | |
Day of the week | |||
Weekday (n = 7900) | −13.49 (−14.32; −12.67) | <0.0001 | 0.03 |
Weekend (n = 3163) | −11.58 (−12.86; −10.29) | <0.0001 | |
Volume per day | |||
≤ 134 (n = 5679) | −12.79 (−13.78; −11.80) | <0.0001 | 0.41 |
> 134 (n = 5384) | −13.26 (−14.23; −12.28) | <0.0001 | |
Length of stay (hrs) | |||
ESI | |||
≤ 3 (n = 8080) | −1.42 (−1.84; −1.00) | <0.0001 | <0.0001 |
> 3 (n = 2984) | −0.16 (−0.29; −0.04) | 0.01 | |
Disposition | |||
Admitted (n = 2886) | −3.91 (−5.01; −2.81) | <0.0001 | <0.0001 |
Discharged (n = 8178) | −0.05 (−0.13; 0.02) | 0.17 | |
Radiographer Shift | |||
Day (n = 5451) | −1.26 (−1.70; −0.83) | <0.0001 | 0.15 |
Evening (n = 5613) | −0.81 (−1.24; −0.37) | <0.0001 | |
Day of the week | |||
Weekday (n = 7901) | −1.33 (−1.72; −0.93) | <0.0001 | 0.004 |
Weekend (n = 3163) | −0.26 (−0.66; 0.14) | 0.20 | |
Volume per day | |||
≤ 134 (n = 5679) | −0.58 (−0.94; −0.23) | 0.001 | 0.01 |
> 134 (n = 5385) | −1.41 (−1.91; −0.91) | <0.0001 | |