Reliability of CT Reading by Diagnosis.
| Diagnosis | # of patients | # of screws | Inter-observer ICC (UCL-LCL) | Intra-observer ICC (UCL-LCL) |
|---|---|---|---|---|
| Degenerative | 15 | 128 | 0.21 (0.44-0.05) | 0.26 (0.50-0.07) |
| Deformity | 8 | 134 | 0.38 (0.61-0.18) | 0.41 (0.63-0.21) |
ICC = Intraclass correlation coefficient; UCL = 95% upper confidence limit; LCL = 95% lower confidence limit. Only 262/286 screws were available for evaluating the effect of diagnosis on Inter- and Intrarater ICC.