Table 4.

Agreement for the final result and components of the Spine Instability Neoplastic Score (SINS) among spine surgeons with low experience for vertebral metastasis treatment.

	% of overall agreement	Fixed-Marginal Kappa	95% CI	Agreement
SINS score	60.12%	0.32285	0.2738-0.3718	Fair
Spinal location	83.57%	0.768719	0.7306-0.8067	Substantial
Mechanical or postural pain	72.38%	0.391383	0.3299-0.4528	Fair
Bone lesion quality	62.86%	0.311485	0.2585-0.3644	Fair
Spinal alignment	82.14%	0.629295	0.5731-0.6854	Substantial
Vertebral body involvement	57.98%	0.424512	0.3888-0.4601	Moderate
Posterior involvement	61.67%	0.42154	0.3761-0.4669	Moderate