TABLE 5.
Ordinary Least Squares Regression Analysis of ASD PCS Scores Compared With U.S. Generational Norms.19
| All Groups (n = 397) | 18–24 years (n = 29) | 25–34 years (n = 65) | 35–44 years (n = 45) | 45–54 years (n = 73) | 55–64 years (n = 112) | 65–74 years (n = 52) | >75 years (n = 21) | |
| Body mass index | −0.346 (0.11) | 0.024 (0.10) | −0.539 (0.05) | −0.311 (0.27) | −0.521 (0.09) | −0.579 (0.20) | −0.225 (0.13) | −0.608 (0.09) |
| P | 0.01 | 0.81 | 0.00 | 0.29 | 0.00 | 0.01 | 0.11 | 0.00 |
| Charlson comorbitiy index | −1.786 (0.44) | −0.623 (2.52) | −0.052 (1.08) | −1.898 (1.43) | −0.504 (0.58) | −2.881 (0.67) | −2.049 (1.02) | −0.726 (1.11) |
| P | 0.00 | 0.81 | 0.96 | 0.22 | 0.41 | 0.00 | 0.07 | 0.54 |
| Female gender | −3.217 (0.96) | −10.903 (3.02) | −4.420 (3.88) | −0.743 (7.77) | −5.220 (6.34) | −3.617 (1.18) | −0.905 (2.61) | 3.464 (6.17) |
| P | 0.01 | 0.01 | 0.29 | .093 | 0.43 | 0.01 | 0.74 | 0.60 |
| Maximal scoliosis angle | 0.050 (0.03) | −0.251 (0.15) | 0.045 (0.05) | 0.166 (0.10) | 0.083 (0.06) | 0.074 (0.04) | −0.049 (0.09) | −0.229 (0.13) |
| P | ||||||||
| Pelvic tilt | −0.123 (0.05) | 0.340 (0.18) | −0.114 (0.12) | 0.013 (0.25) | −0.507 (0.13) | −0.106 (0.04) | −0.010 (0.12) | 0.050 (0.21) |
| P | 0.05 | 0.10 | 0.38 | 0.96 | 0.00 | 0.02 | 0.94 | 0.83 |
| Sagittal vertical axis | −0.056 (0.01) | 0.030 (0.05) | −0.040 (0.05) | −0.037 (0.09) | −0.011 (0.03) | −0.096 (0.02) | −0.064 (0.02) | −0.032 (0.03) |
| P | 0.00 | 0.53 | 0.42 | 0.70 | 0.69 | 0.00 | 0.00 | 0.33 |
| R-squared | 0.23 | 0.40 | 0.18 | 0.15 | 0.31 | 0.33 | 0.29 | 0.30 |
Notes: Standard errors in parenthesis. Standard errors are robust to clustering at the hospital level. P values <0.05 considered statistically significant.