Table 2.
Main results of the pooled data in the meta-analysis
| Variables | Number of references with data | OR (95% CI) | Q test (Pvalue) | I2(%) | Z test (Pvalue) | Begg’s test (Pvalue) | Egger’s test (Pvalue) |
|---|---|---|---|---|---|---|---|
| Overall survival rates | |||||||
| 1 year |
12 [16,19-21,24-27,29-32] |
0.60(0.42, 0.86) |
0.301 |
14.6 |
0.005 |
0.54 |
0.40 |
| 3 years |
13 [16,19-21,24-32] |
0.49(0.36, 0.65) |
0.036 |
45.8 |
0.000 |
0.2 |
0.15 |
| 5 years |
10 [16,24-32] |
0.60(0.43, 0.84) |
0.003 |
63.7 |
0.003 |
0.37 |
0.57 |
| Recurrence rates | |||||||
| 1 year |
13 [16,19-21,24-32] |
1.48(1.05, 2.08) |
0.001 |
63.4 |
0.025 |
1.00 |
0.61 |
| 3 years |
13 [16,19-21,24-32] |
1.76(1.49, 2.08) |
0.000 |
69.9 |
0.000 |
0.20 |
0.15 |
| 5 years |
10 [16,24-32] |
1.68(1.21, 2.34) |
0.02 |
54.4 |
0.002 |
0.86 |
0.92 |
| Local recurrence |
4 [16,20,24,30] |
0.34(0.09, 1.28) |
0.02 |
68.9 |
0.112 |
NA |
NA |
| Complications | 7 [16,19,24,25,27,30,32] | 6.25(3.12, 12.52) | 0.042 | 54 | 0.000 | 1 | 0.982 |
NA,not available.Q test and I2 were used to evaluate the heterogeneity of the studies; Z test was used to value the combined effect; Begg’s and Egger’s tests were used to assess the publication bias.