Table 1. Summary of the included studies.
| Studies included | Age (years) |
Tumor size (cm) |
Tumor number |
Follow-up (months) | |||||
|---|---|---|---|---|---|---|---|---|---|
| M | O | M | O | M | O | ||||
| Wang (5) | 27.0±3.7 | 27.4±3.4 | 2.43±0.43 | 2.53±0.36 | 62 | 36 | 12 | ||
| Pang Z (7) | 28.3±5.9 | 1.5±0.7 | 136 | 135 | 3 | ||||
| Wang YX (15) | 29 | 37 | <3 | <3 | 730 | 378 | 22 | ||
| Yang ZL (12) | 26.07±11.80 | 32.06±12.30 | 1.37±0.46 | 2.58±0.87 | — | 6 | |||
| Si ST (9) | 24~41 | <3 | <3 | — | 6 | ||||
| Di CF (8) | 24~41 | <3 | <3 | — | 3 | ||||
| Zhang SP (11) | 21.6±3.2 | 0.5-3.0 | — | 6 | |||||
| Sun ZY (6) | 26.2 | 24.7 | 1.06±0.34 | 1.61±0.54 | 57 | 76 | 18 | ||
| Zhou J (10) | 33 | 1.3±0.26 | 1.4±0.31 | 84 | 535 | 42 | |||
| Gao JJ (16) | 32 | 37 | <3 | <3 | 93 | 86 | 9 | ||
| Wang J (17) | 28±1.5 | 0.5-4.0 | 488 | 263 | 6 | ||||
| Gu B (18) | 28.7 | 0.76 | 346 | — | 3 | ||||
| Chen (13) | 47 | 46 | 1 | 1.1 | — | 12 | |||
| Wang QY (19) | 28.8 | 34 | 1.8 | 2.2 | 52 | 56 | 3 | ||
| Qu WZ (14) | 29.3 | 33.2 | 1.4 | 1.9 | 243 | — | 36 | ||