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Univariate linear regression models by age group. Thoracic Cobb angle, Thoracolumbar Cobb angle and Lumbar Cobb angle are the dependent variables. Rib-index is the independent variable |
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| Dependent variable |
Age group |
Explanatory variable |
Unstandardized beta coefficient |
Standard Error |
t |
p-value |
[95% Conf. Interval] |
|
|
|
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| Thoracic Cobb angle |
7–13 |
Rib-index |
2.283 |
3.369 |
0.680 |
0.502 |
-4.520 |
9.086 |
| Constant |
3.496 |
5.306 |
0.660 |
0.514 |
-7.221 |
14.212 |
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| Thoracic Cobb angle |
14–18 |
Rib-index |
7.974 |
3.524 |
2.260 |
0.030 |
0.805 |
15.144 |
| Constant |
-6.357 |
5.474 |
-1.160 |
0.254 |
-17.494 |
4.781 |
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| Thoracolumbar Cobb angle |
7–13 |
Rib-index |
-0.946 |
0.902 |
-1.050 |
0.302 |
-2.782 |
0.890 |
| Constant |
1.724 |
1.402 |
1.230 |
0.227 |
-1.128 |
4.576 |
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| Thoracolumbar Cobb angle |
14–18 |
Rib-index |
3.116 |
2.827 |
1.100 |
0.277 |
-2.594 |
8.826 |
| Constant |
-1.605 |
4.454 |
-0.360 |
0.720 |
-10.600 |
7.390 |
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| Lumbar Cobb angle |
7–13 |
Rib-index |
0.804 |
4.229 |
0.190 |
0.850 |
-7.799 |
9.408 |
| Constant |
6.320 |
6.569 |
0.960 |
0.343 |
-7.045 |
19.684 |
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| Lumbar Cobb angle |
14–18 |
Rib-index |
1.901 |
3.252 |
0.580 |
0.562 |
-4.666 |
8.469 |
| Constant |
1.876 |
5.123 |
0.370 |
0.716 |
-8.469 |
12.222 |
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Grivas et al. Scoliosis 2007 2:11 doi:10.1186/1748-7161-2-11 |
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