TABLE 3.
Statistical analyses of superior facet angles according to each vertebral type at the thoracolumbar junction
| Descriptive statistics | T11 | T12 | L1 | TLTV |
|---|---|---|---|---|
| Mean | 184.4503 | 182.795 | 112.332298 | 135.7307692 |
| Standard error | 0.455161 | 0.574515 | 0.4053521 | 4.269951429 |
| Median | 185 | 180 | 112 | 131.5 |
| Mode | 180 | 178 | 109 | 114 |
| Standard deviation | 8.16758 | 10.30931 | 7.27378344 | 21.77256566 |
| Sample variance | 66.70936 | 106.2818 | 52.9079255 | 474.0446154 |
| Kurtosis | 0.537601 | −0.31682 | −0.00813979 | −1.1096557 |
| Skewness | −0.285555 | 0.638445 | 0.15752235 | 0.311240728 |
| Range | 47 | 48 | 46 | 74 |
| Minimum | 160 | 161 | 90 | 102 |
| Maximum | 207 | 209 | 136 | 176 |
| Sum | 59393 | 58860 | 36171 | 3529 |
| Count | 322 | 322 | 322 | 26 |
| Pearson's coefficient (SK) | −0.201904 | 0.813352 | 0.13705308 | 0.582949566 |
| Lower bound confidence interval | 183.5548 | 181.6647 | 111.534816 | 126.9366396 |
| Upper bound confidence interval | 185.3458 | 183.9253 | 113.12978 | 144.5248988 |
| Confidence level (95,0%) | 0.895476 | 1.130291 | 0.79748231 | 8.794129587 |