Table 5.
κ-values for LVS cases and HV cases for UIV and LIV
| Variable | Category | Free-marginal kappa (UIV) | Free-marginal kappa (LIV) |
|---|---|---|---|
| LVS cases | Case 1 | 0.03 | 0.09 |
| Case 2 | 0.08 | 0.13 | |
| Case 3 | 0.12 | 0.05 | |
| Case 4 | 0.01 | 0.05 | |
| Case 5 | 0.23 | 0.08 | |
| Case 6 | 0.13 | 0.05 | |
| HV cases | Case 7 | −0.06 | 0.13 |
| Case 8 | −0.07 | 0.23 | |
| Case 9 | 0.02 | 0.02 | |
| Case 10 | 0 | 0.38 | |
| Case 11 | 0 | 0.14 | |
| Case 12 | 0.56 | −0.04 | |
| Case 13 | 0 | 0.17 | |
| Case 14 | −0.07 | 0.09 | |
| Case 15 | 0 | 0 | |
| Case 16 | −0.33 | −0.33 | |
| Case 17 | −0.2 | −0.2 | |
| Case 18 | −0.2 | −0.2 | |
| Case 19 | −0.4 | −0.2 | |
| Case 20 | −0.2 | −0.2 |
LVS, low variability–surgical; HV, high variability; UIV, upper instrumented vertebra; LIV, lower instrumented vertebra.