Table 2.

Response of the tumor to microwave ablation in relation to the clinical, biochemical, radiological and pathological parameters

Parameter		Response				Test of sig.	P value
		Responder (n = 24)		Non-responder (n = 26)
		n	%	n	%
Gender
	Male	22	91.6	16	61.5	χ2 = 4.338	FEp = 0.065
	Female	2	8.4	10	38.5
Age (years)
	Min.-Max.	51.0-60.0		43.0-70.0		t = 0.405	0.692
	Mean ±SD	56.57 ±2.68		55.67 ±7.33
	Median	56.0		55.0
Child-Turcotte-Pugh class
	A	6	25.0	18	69.2	χ2 = 1.330	0.249
	B	18	75.0	8	30.8
Pathological grade of tumors
	Grade I	2	8.33	2	7.7	χ2 = 0.181	0.671
	Grade II	10	41.66	10	38.4
	Grade III	12	50.0	14	53.9
Sum number of tumors
	1 nodule	18	75.0	12	46.2	χ2 = 4.154	MCp = 0.282
	2 nodules	2	8.3	6	23.1
	3 nodules	4	16.6	8	30.7
Sum size of tumors		(n = 62)		(n = 26)
	< 3 cm	24	37.5	2	8.3	χ2 = 8.863*	MCp = 0.010*
	3-6 cm	38	62.5	18	66.7
	> 6-< 9 cm	0	0.0	6	25.0
Serum α-fetoprotein
	Min.-Max.	4.20-215.8		2.40-1250.0		U = 36.0*	0.013*
	Mean ±SD	45.62 ±62.67		456.8 ±481.1
	Median	12.90		196.4

χ² – Chi square test, FE – Fisher exact, MC – Monte Carlo correction, U – Mann-Whitney test, t – Student t-test, p – p value for association between different categories,

*statistically significant at p ≤ 0.05