Table 2.
Matrix of correlations among the main spinal and pelvic parameters
| PI | PT | SS | C7 SVA | C2 SVA | T1 | C1–2 | Occ–C2 | C2–7 | L1–5 | T10–L2 | T5–T12 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PI | 1 | |||||||||||
| PT | 0.76** | 1 | ||||||||||
| SS | 0.56** | –0.11 | 1 | |||||||||
| C7 SVA | 0.20 | 0.31* | –0.10 | 1 | ||||||||
| C2 SVA | 0.20 | 0.29* | –0.08 | 0.96** | 1 | |||||||
| T1 | –0.03 | 0.14 | –0.25 | 0.38** | 0.43** | 1 | ||||||
| C1–2 | 0.03 | 0.22 | –0.24 | 0.36* | 0.37** | 0.20 | 1 | |||||
| Occ–C2 | –0.04 | 0.11 | –0.21 | 0.40** | 0.46** | 0.07 | 0.81** | 1 | ||||
| C2–7 | 0.05 | 0.14 | –0.10 | 0.21 | 0.13 | 0.59** | 0.18 | –0.06 | 1 | |||
| L1–5 | 0.18 | –0.18 | 0.49** | –0.50** | –0.43** | –0.02 | –0.20 | –0.29* | 0.16 | 1 | ||
| T10–L2 | –0.11 | 0.11 | –0.34* | –0.12 | –0.06 | 0.01 | 0.09 | 0.08 | –0.02 | 0.02 | 1 | |
| T5–T12 | –0.09 | 0.01 | –0.19 | –0.15 | –0.11 | 0.42** | 0.06 | –0.06 | 0.39** | 0.47** | 0.41** | 1 |
P pelvic incidence, PT pelvic tilt, SS sacral slope, SVA sagittal vertical axis
* p < 0.05
** p < 0.01