TABLE VI.
Multiple Regression Analysis of Differences in Spinopelvic Characteristics Between the Standing and Deep-Seated Positions*
| Spinopelvic Motion and Significant Predictors | Unstandardized β Coefficient (95% CI) | Standardized β Coefficient | P Value | Collinearity Tolerance† |
|---|---|---|---|---|
| ∆LLstanding/deep-seated | ||||
| Age | −0.435 (−0.547 to −0.323) | −0.526 | <0.001 | 0.871 |
| LLstanding | 0.549 (0.390 to 0.708) | 0.450 | <0.001 | 0.946 |
| PFAstanding | −0.455 (−0.668 to −0.243) | −0.284 | <0.001 | 0.913 |
| ∆SSstanding/deep-seated | ||||
| PFAstanding | −0.562 (−0.855 to −0.270) | −0.342 | <0.001 | 1.000 |
| ∆PTstanding/deep-seated | ||||
| PFAstanding | 0.584 (0.280 to 0.88) | 0.341 | <0.001 | 1.000 |
| ∆PFAstanding/deep-seated | ||||
| PFAstanding | 1.387 (1.040 to 1.734) | 0.724 | <0.001 | 0.683 |
| PIstanding | −0.739 (−1.050 to −0.428) | −0.484 | <0.001 | 0.540 |
| LLstanding | 0.465 (0.213 to 0.717) | 0.319 | <0.001 | 0.750 |
*
Adjusted for age and PI, LL, and PFA in the standing position. The listed factors explained 55.9% of the variability in ∆LL (R2 = 0.559), 11.7% of the variability in ∆SS (R2 = 0.117), 11.6% of the variability in ∆PT (R2 = 0.116), and 38.5% of the variability in ∆PFA (R2 = 0.385) between the standing and deep-seated positions. CI = confidence interval.
†
Collinearity was considered to exist if the tolerance was <0.20.