Table 1.
The Characteristics of the Studies Entered into the Meta-Analysis
| Study region | Year | Sample size | Survival rate | ||||
|---|---|---|---|---|---|---|---|
| 1 year | 2 year | 3 year | 4 year | 5 year | |||
| mashad | 2000 | 190 | 0.68 | 0.49 | 0.36 | - | - |
| Rasht | 2008 | 71 | - | - | - | - | - |
| Rasht | 1991 | 192 | 0.8 | 0.61 | 0.52 | 0.38 | - |
| Fars | 2001 | 161 | - | - | - | - | - |
| Ardebil | 2000 | 141 | 0.26 | 0.11 | 0.05 | 0.02 | - |
| Babolsar | 1992 | 230 | 0.42 | 0.21 | 0.11 | - | 0.08 |
| Isfahan | 2001 | 161 | 0.58 | 0.33 | 0.18 | 0.15 | 0.01 |
| Tehran | 1989 | 245 | - | 0.08 | - | - | 0.15 |
| Babol | 1900 | 359 | 0.24 | 0.16 | - | - | - |
| Golestan | 2003 | 115 | 0.26 | - | - | - | - |
| Tahran | 2007 | 100 | - | - | - | - | - |
| Sari | 1992 | 79 | - | - | 0.11 | - | - |
| Golestan | 2005 | 39 | - | - | - | - | - |
| Babol | 1993 | 133 | 0.48 | - | - | - | - |
| Tehran | 1995 | 150 | 0.33 | - | 0.1 | - | 0.04 |
| Rasht | 1993 | 162 | 0.8 | 0.5 | 0.4 | 0.3 | 0.2 |
| Babol | 2001 | 364 | 0.35 | 0.15 | - | - | 0.09 |
| Isfahan | 2010 | 40 | - | - | - | - | - |