Table 3. Results of Uni- and Multi-Variate Analyses for Predictors of LTP in 66 Patients with Technique Efficacy.

	Univariate Analysis		Multivariate Analysis
	Odds Ratio (95% CI)	P	Odds Ratio (95% CI)	P
Sex (male)	0.54 (0.15–1.96)	0.35
Age (per 1 year)	0.99 (0.93–1.04)	0.61
History of local treatment for liver tumors (presence)*	2.13 (0.73–6.21)	0.17
Tumor number (two or more)	1.76 (0.53–5.86)	0.36
Index tumor size (per 1 cm)	0.39 (0.16–0.98)	0.046
Delivered RFA energy (per 1 kcal)	0.98 (0.93–1.02)	0.28
aFP (per 1 ng/mL)	0.99 (0.99–1.00)	0.56
Locally progressed tumor (yes)	7.33 (1.29–41.83)	0.017	8.67 (1.43–52.49)	0.019
Ablative margin assessment
Software-assisted assessment (insufficient margin)	6.14 (1.36–27.84)	0.019	7.12 (1.49–34.12)	0.014
Visual assessment (insufficient margin)	0.91 (0.16–5.14)	0.92

^*PEI, RFA, and TACE. aFP = alpha fetoprotein, CI = confidence interval, LTP = Local tumor progression