Table 4

Full regression model for mortality using data from 2015 to 2019, inclusive

30-day mortality7-day mortality90-day mortality
VariableOR (95% CI)P valueOR (95% CI)P valueOR (95% CI)P value
Conventional vs technology assisted1.72 (1.23 to 2.43)0.0012.21 (1.34 to 3.66)0.0021.35 (1.07 to 1.69)0.01
ASA class (ref=1)
 22.14 (0.43 to 10.66),<0.0011.10 (0.22 to 5.47)0.911.52 (0.59 to 3.91)0.001
 34.68 (0.94 to 23.25)0.071.89 (0.38 to 9.38)0.443.33 (1.30 to 8.53)0.08
 416.62 (3.04 to 90.78)0.194.23 (0.64 to 27.99)0.0712.07 (4.37 to 33.38)0.07
 5419.4 (11.78 to 14934)0.003451.5 (13.69 to 14894)<0.001141.8 (5.11 to 3935)0.02
Age (per year)1.08 (1.06 to 1.10)<0.0011.08 (1.05 to 1.17)0.011.08 (1.07 to 1.10)0.01
BMI (ref=normal)
 Underweight0.96 (0.56 to 1.64)0.803.25 (0.20 to 53.22)0.095.87 (2.38 to 14.51)<0.001
 Overweight0.95 (0.51 to 1.77)0.791.06 (0.47 to 2.37)0.890.99 (0.69 to 1.42)0.02
 Obese class 11.25 (0.63 to 2.48)0.551.23 (0.54 to 2.81)0.620.88 (0.61 to 1.29)0.002
 Obese class 20.93 (0.55 to 1.56)0.701.25 (0.49 to 3.19)0.650.89 (0.57 to 1.38)0.01
 Obese class 31.12 (0.07 to 18.12)0.942.50 (0.95 to 6.57)0.061.06 (0.65 to 1.75)0.26
Procedure year
(per year)
1.06 (0.94 to 1.18)0.350.97 (0.83 to 1.14)0.731.02 (0.95 to 1.11)0.57
Female (vs male)0.63 (0.46 to 0.87)0.0040.52 (0.33 to 0.83)0.0050.62 (0.50 to 0.78)<0.001
No cement
(vs cement)
1.89 (1.15 to 3.09)<0.0011.84 (0.92 to 3.67)0.091.35 (0.91 to 2.00)0.14
  • ASA, American Society of Anesthesiologists; BMI, body mass index.