Table 1 Characteristics of the studies included in the meta-analysis
Study | Research period | RFA (n) | HR (n) | Trial type | Tumor diameter (cm) | Grade |
|---|---|---|---|---|---|---|
Chen et al. 2006 [15] | 1999–2004 | 71 | 90 | RCT | ≤5 | A |
Cho et al. 2005 [25] | 2000–2002 | 99 | 61 | NRCT | ≤5 | B |
Guglielmi et al. 2008 [26] | 1996–2006 | 109 | 91 | NRCT | ≤3 | B |
Guo et al. 2013 [27] | 2002–2007 | 94 | 102 | NRCT | ≤5 | B |
Hasegawa et al. 2008 [28] | 2000–2003 | 3022 | 2857 | NRCT | ≤3 | B |
Hiraoka et al. 2008 [29] | 2000–2007 | 105 | 59 | NRCT | 3–5 | B |
Hong et al. 2005 [19] | 2000–2003 | 55 | 55 | NRCT | ≤4 | B |
Huang et al. 2011 [14] | 2000–2005 | 413 | 648 | NRCT | ≤3 | B |
Lu et al. 2006 [30] | 2002–2005 | 51 | 54 | RCT | ≤3 | A |
Lupo et al. 2007 [24] | 2003–2004 | 42 | 60 | NRCT | 3–5 | B |
Ueno et al. 2009 [31] | 2000–2005 | 155 | 123 | NRCT | ≤5 | B |
Vivarelli et al. 2004 [20] | 1998–2005 | 79 | 79 | NRCT | ≤5 | B |