Table 2.

Correlation of Short Form-12 (SF-12) and Oswestry Disability Index (ODI) with visual analog scale (VAS)-pain at multiple perioperative time points for patients undergoing lumbar surgery.

	SF-12 (PCS) versus VAS		SF-12 (MCS) versus VAS		ODI versus VAS
	ICC (95% CI)	P Value	ICC (95% CI)	P Value	ICC (95% CI)	P Value
Preoperative	−0.098 (−0.174, −0.021)	.006	−0.086 (−0.163, −0.009)	.015	0.121 (0.044, 0.197)	.001
3 months	−0.171 (−0.354, 0.024)	.053	−0.109 (−0.298, 0.087)	.137	0.159 (−0.036, 0.343)	.055
6 months	−0.211 (−0.452, 0.057)	.061	−0.172 (−0.418, 0.098)	.105	0.152 (−0.119, 0.401)	.134

Abbreviations: CI, confidence interval; ICC, interclass correlation coefficient; MCS, mental component score; PCS, physical component score.