Parameter | Estimate | Wald 95% Confidence Limits | Wald Chi-Square | P-Value | |
---|---|---|---|---|---|
Intervention period (ref Before)a | −0.085 | −0.169 | −0.001 | 3.97 | 0.046 |
Day of surgery (ref Monday) | |||||
 Tuesday | 0.075 | −0.071 | 0.221 | 1.02 | 0.313 |
 Wednesday | 0.120 | − 0.035 | 0.275 | 2.31 | 0.128 |
 Thursday | 0.174 | 0.004 | 0.346 | 4.00 | 0.046 |
 Friday | 0.033 | −0.114 | 0.180 | 0.19 | 0.662 |
Male | 0.155 | 0.063 | 0.248 | 10.86 | 0.001 |
Total knee arthroplasty | 0.009 | −0.137 | 0.155 | 0.01 | 0.905 |
Unilateral procedure | 0.251 | 0.037 | 0.464 | 5.30 | 0.021 |
Osteoarthritis | 0.118 | −0.113 | 0.349 | 1.00 | 0.317 |
Surgery start, morning | 0.039 | −0.058 | 0.136 | 0.61 | 0.433 |
ASA 3 or 4 | −0.041 | −0.134 | 0.052 | 0.76 | 0.384 |
English-speaking interpreter required | −0.146 | −0.237 | − 0.055 | 9.88 | 0.002 |
Other lower limb or back issues | −0.057 | −0.144 | 0.029 | 1.71 | 0.191 |
ICU/HDU admission | −0.352 | −0.524 | − 0.180 | 16.06 | <.0001 |
Acute complication | −0.389 | −0.485 | − 0.294 | 63.91 | <.0001 |
Peripheral nerve block | −0.033 | −0.163 | 0.097 | 0.25 | 0.616 |
Age, yrs | 0.012 | 0.007 | 0.018 | 22.27 | <.0001 |
Body mass index, kg/m2 | 0.007 | 0.001 | 0.014 | 4.43 | 0.035 |