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. Author manuscript; available in PMC: 2010 Aug 16.
Published in final edited form as: Ann Thorac Surg. 2009 Apr;87(4):1030–1039. doi: 10.1016/j.athoracsur.2008.12.061

Table 4. Analysis of Prognostic Factors: Association between overall survival and progression free survival.

Overall Survival P value Progression Free Survival P value
Approach
(RFA alone vs. RFA + Thoracotomy)		 0.99 0.43
Cancer type
(Colon vs. Sarcoma vs. Others)		 0.57 0.92
Site of primary metastasis
(Lung vs. Others)		 0.85 0.8
Gender
(Male vs. Female)		 0.08 0.3
Largest size of lesion *
(<=3cm vs. >3cm)		 0.003 0.02
Age 0.53 0.55
Largest size of lesion (continuous variable)* 0.02 0.04
Disease-free interval to first metastases (any site) 0.5 0.2
Disease-free interval to metastases to lung 0.26 0.59
*

P value < 0.05