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The residuals (difference between measured and predicted lordosis values) in the 4-item model and 3-item model
| N=147° | 4-Item model (kyphosis, sacral slope, incidence, T9 tilt) | 3-Item model (kyphosis, sacral slope, incidence) |
|---|---|---|
| Mean | 2.41 | 3.62 |
| SD | 1.92 | 2.59 |
| Minimum | 0.037 | 0.002 |
| Maximum | 8.16 | 11.57 |
| 95% CL of mean | 2.41 (2.1–2.72) | 3.62 (3.2–4.04) |
