Efficacy and safety of B-ultrasound-guided radiofrequency ablation in the treatment of primary liver cancer: Systematic review and meta-analysis

Table 1 Basic information of patients

Ref.	Group	Cases	Average age (years)	Liver function A/B/C	Follow up time (months)	Complications
Feng et al[9]	RFA group	84	47 (18-76)	43/41/0	36	Unknown
	TS group	84	51 (24-83)	39/45/0	36	Unknown
Gory et al[10]	RFA group	96	65.1 ± 10	75/21/0	26 ± 14	Unknown
	TS group	52	59.3 ± 10.7	46/6/0	42 ± 12	Unknown
Guo et al[11]	RFA group	94	56 (19-75)	63/31/0	28 ± 13	32
	TS group	102	51.5 (18-75)	95/7/0	32 ± 14	42
Guo et al[12]	RFA group	86	52.5	84/2/0	27	7
	TS group	73	50	71/2/0	30	14
Huang et al[13]	RFA group	115	56.6 ± 14.3	110/5/0	37.2	33
	TS group	115	55.9 ± 12.6	106/9/0	46.4	59
Huang et al[14]	RFA group	413	54.67 ± 12.18	413/0/0	36.1 ± 12.4	19
	TS group	648	46.13 ± 16.89	648/0/0	33.7 ± 17.4	71
Lai et al[15]	RFA group	31	63.1 ± 12.8	Unknown	35 ± 17	12
	TS group	80	60.8 ± 9.9	Unknown	30 ± 20	48
Lee et al[16]	RFA group	369	66 ± 11	306/51/0	Unknown	Unknown
	TS group	330	61 ± 12	317/13/0	Unknown	Unknown
Tohme et al[17]	RFA group	60	65.6 ± 12	44/16/0	29	17
	TS group	50	66.3 ± 1	44/6/0	29	17
Ueno et al[18]	RFA group	155	66 (40-79)	52/91/0	36.1	31
	TS group	123	67 (28-85)	91/31/0	36.1	46

RFA: Radiofrequency ablation; TS: Traditional surgery.