Table 2 Differences of means, 95% CI and p-values in the LOS, PACU time and the length of total surgical process between the intervention group and the control group, gender within the groups and the surgical procedures total hip arthroplasty (THA) and total knee arthroplasty (TKA). Total amount of patients n = 450
Preparation time from patient’s arrival to the operating department to administration of anesthesia agents | ||||||
|---|---|---|---|---|---|---|
| Â | Hours | Â | Hours | Difference of means | 95% CI | p-value |
Intervention group all | 0.35 | Control group all | 0.36 | −0.01 | [−0.03, 0.01] | 0.52 |
 Female THA | 0.36 | Female THA | 0.37 | −0.00 | [−0.07, 0.05] | 0.99 |
 Male THA | 0.35 | Male THA | 0.35 | 0.00 | [−0.07, 0.07] | 1.00 |
 Female TKA | 0.37 | Female TKA | 0.38 | −0.00 | [− 0.08, 0.06] | 0.99 |
 Male TKA | 0.32 | Male TKA | 0.33 | −0.00 | [−0.11, 0.09] | 1.00 |
Surgery timefrom incision to closing of the wound | ||||||
Intervention group all | 1.53 | Control group all | 1.43 | 0.09 | [0.01, 0.17] | 0.02 |
 Female THA | 1.47 | Female THA | 1.41 | 0.06 | [−0.13, 0.26] | 0.98 |
 Male THA | 1.43 | Male THA | 1.41 | 0.02 | [−0.22, 0.26] | 1.00 |
 Female TKA | 1.47 | Female TKA | 1.44 | 0.02 | [−0.21, 0.27] | 1.00 |
 Male TKA | 1.84 | Male TKA | 1.38 | 0.45 | [0.09, 0.81] | 0.00 |
Operating room timefrom patient entrance to operating room to patient exit from it | ||||||
Intervention group all | 2.65 | Control group all | 2.52 | 0.12 | [0.02, 0.22] | 0.01 |
 Female THA | 2.62 | Female THA | 2.53 | 0.05 | [−0.16, 0.34] | 0.96 |
 Male THA | 2.58 | Male THA | 2.49 | 0.08 | [−0.22, 0.39] | 0.99 |
 Female TKA | 2.57 | Female TKA | 2.59 | −0.01 | [− 0.32, 0.29] | 1.00 |
 Male TKA | 3.01 | Male TKA | 2.42 | 0.59 | [0.13, 1.05] | 0.00 |
PACU time | ||||||
| Â | Hours | Â | Hours | Difference of means | 95%CI | p-value |
Intervention group all | 1.95 | Control group all | 2.07 | −0.12 | [−0.29, 0.05] | 0.18 |
 Female THA | 1.97 | Female THA | 1.99 | −0.01 | [− 0.45, 0.42] | 1.00 |
 Male THA | 1.78 | Male THA | 2.21 | −0.42 | [−0.95, 0.10] | 0.22 |
 Female TKA | 2.25 | Female TKA | 2.09 | 0.16 | [−0.36, 0.68] | 0.98 |
 Male TKA | 1.62 | Male TKA | 1.94 | −0.31 | [−1.09, 0.45] | 0.91 |
Recovery timefrom patient readiness for discharge from PACU to patient discharged from the hospital | ||||||
Intervention group all | 66.30 | Control group all | 68.88 | −2.58 | [−9.77, 4.61] | 0.48 |
 Female THA | 66.58 | Female THA | 66.31 | 0.26 | [−18.02, 18.56] | 1.00 |
 Male THA | 57.45 | Male THA | 71.89 | −14.44 | [−36.70, 7.81] | 0.49 |
 Female TKA | 73.19 | Female TKA | 69.02 | 4.17 | [−17.88, 26.22] | 0.99 |
 Male TKA | 68.62 | Male TKA | 69.73 | −1.11 | [−33.63, 31.40] | 1.00 |
LOSfrom hospital admission to hospital discharge (days) | ||||||
Intervention group all | 3.08 | Control group all | 3.18 | −0.10 | [−0.40, 0.19] | 0.49 |
 Female THA | 3.07 | Female THA | 3.06 | 0.00 | [−1.51, 0.35] | 0.55 |
 Male THA | 2.71 | Male THA | 3.29 | −0.58 | [−0.76, 0.77] | 1.00 |
 Female TKA | 3.41 | Female TKA | 3.22 | 0.19 | [−0.73, 1.12] | 0.99 |
 Male TKA | 3.16 | Male TKA | 3.23 | −0.07 | [−1.43, 1.29] | 1.00 |