Table 5.

Segmented regression analysis, point estimates (β), and P values for all surgical specialties

VariableFracture NOFOther Orthopedic Implant SurgeryUrological SurgeryVascular SurgeryGastrointestinalGynecology
βP ValueβP ValueβP ValueβP ValueβP ValueβP Value
Preintervention slope0.17 (−0.24 to 0.58)0.410.08 (−0.12 to 0.28)0.40−0.00 (−0.01 to 0.02)0.990.02 (−0.01 to 0.04)0.180.01 (−0.01 to 0.04)0.29−0.04 (−0.13 to 0.05)0.35
Change in level −3.68 (−11.74 to 4.37)0.36−1.65 (−5.45 to 2.16)0.39−0.01 (−0.24 to 0.22)0.91−0.03 (−0.50 to 0.45)0.92−0.14 (−0.52 to 0.25)0.49−0.48 (−2.42 to 1.46)0.63
Change in slope −0.11 (−0.69 to 0.48)0.770.30 (0.01 to 0.59)0.040.01 (−0.01 to 0.03)0.16−0.03 (−0.07 to 0.01)0.110.01 (−0.02 to 0.03)0.680.04 (−0.09 to 0.16)0.55
  • Data are presented with 95% CIs.