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Table 8 Inter-observer Reliability and Intra-observer Reproducibility Using the Intraclass Correlation Coefficient*

From: Cervical sagittal parameters were closely related to Neck Disability Index score after anterior cervical decompression and fusion

  Inter-observer Intra-observer
T1S 0.87 0.81
CL 0.79 0.72
SVA 0.88 0.82
SCA 0.90 0.86
TS-CL 0.86 0.83
NT 0.85 0.76
TIA 0.82 0.79
  1. *An intraclass correlation coefficient value of <0.6 indicates poor reliability; 0.6–0.79 indicates good reliability; and 0.8–1.0 indicates excellent reliability