Table 4.
Linear multiple regression analysis assessing clinical predictors cortical thickness on CT scan and AP radiograph in patients with distal femur fractures
| CT scan | AP radiograph | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SC (mm) | DSmin (mm) | DSmax (mm) | CBTavg (mm) | |||||||||
| B (SE) | P | R2 | B (SE) | P | R2 | B (SE) | P | R2 | B (SE) | P | R2 | |
| Clinical Model | < 0.01 | 0.44 | < 0.01 | 0.6 | < 0.01 | 0.53 | < 0.01 | 0.44 | ||||
| Sex | − 0.253 (0.1) | 0.014 | − 0.204 (0.226) | 0.371 | − 0.406 (0.314) | 0.202 | − 0.145 (0.264) | 0.586 | ||||
| Age (yrs) | 0.004 (0.003) | 0.166 | 0.004 (0.006) | 0.465 | 0.006 (0.008) | 0.425 | 0.004 (0.007) | 0.581 | ||||
| BMI (kg/m2) | 0.010 (0.004) | 0.030 | 0.017 (0.010) | 0.091 | 0.029 (0.014) | 0.044 | 0.024 (0.012) | 0.047 | ||||
| Impact level | − 0.272 (0.113) | 0.019 | − 1.485 (0.253) | < 0.001 | − 1.49 (0.355) | < 0.001 | − 0.955 (0.298) | 0.002 | ||||
| OST history | − 0.191 (0.100) | 0.030 | − 0.270 (0.226) | 0.091 | − 0.604 (0.301) | 0.060 | − 0.642 (0.264) | 0.047 | ||||
AP anteroposterior, SC supracondylar cortical thickness, DSmin distal shaft minimum cortical thickness, DSmax distal shaft maximum cortical thickness, CBTavg mean cortical bone thickness on AP radiograph, OST osteoporosis, BMI body mass index, B unstandardized coefficient B, SE standard error