Influencing factors | Variables | B value | Standard error | t value | P value | R2 value |
---|---|---|---|---|---|---|
Spinopelvic parameters | PI | 0.271 | 0.20 | 13.550 | < 0.001 | 0.764 |
PT | − 0.237 | 0.018 | − 13.549 | < 0.001 |  | |
SS | − 0.182 | 0.018 | − 10.156 | < 0.001 |  | |
Constant | − 1.159 | 0.361 | − 3.215 | 0.002 |  | |
Concave or convex LMA at the upper or lower intervertebral level of the apical vertebra | Upper intervertebral level LMA | Â | Â | Â | Â | 0.050 |
 Concave | 0.364 | 0.163 | 2.229 | 0.028 | – | |
 Convex | − 0.296 | 0.116 | − 2.545 | 0.012 | – | |
 Constant | 1.700 | 0.375 | 4.535 | < 0.001 | – |