Table 1. Number of survivors at 6, 12, 18 and 24 months following post-operative treatment with either radiotherapy plus chemotherapy (E) or radiotherapy alone (C) in patients with malignant gliomas from 17 studies [42].
| Study | Sample size, E(C) | Number of survivors, E(C) | |||
|---|---|---|---|---|---|
| 6 months | 12 months | 18 months | 24 months | ||
| 1 | 19 (22) | 16 (20) | 11 (12) | 4 (8) | 4 (3) |
| 2 | 34 (35) | 22 (22) | 18 (12) | 15 (8) | 15 (6) |
| 3 | 72 (68) | 44 (40) | 21 (15) | 10 (3) | 3 (0) |
| 4 | 22 (20) | 19 (12) | 14 (5) | 5 (4) | 2 (3) |
| 5 | 70 (32) | 62 (27) | 42 (13) | 26 (6) | 15 (5) |
| 6 | 183 (94) | 130 (65) | 80 (33) | 47 (14) | 30 (11) |
| 7 | 26 (50) | 24 (30) | 13 (18) | 5 (10) | 3 (9) |
| 8 | 61 (55) | 51 (44) | 37 (30) | 19 (19) | 11 (15) |
| 9 | 36 (25) | 30 (17) | 23 (12) | 13 (4) | 10 (4) |
| 10 | 45 (35) | 43 (35) | 19 (14) | 8 (4) | 6 (0) |
| 11 | 246 (208) | 169 (139) | 106 (76) | 67 (42) | 51 (35) |
| 12 | 386 (141) | 279 (97) | 170 (46) | 97 (21) | 73 (8) |
| 13 | 59 (32) | 56 (30) | 34 (17) | 21 (9) | 20 (7) |
| 14 | 45 (15) | 42 (10) | 18 (3) | 9 (1) | 9 (1) |
| 15 | 14 (18) | 14 (18) | 13 (14) | 12 (13) | 9 (12) |
| 16 | 26 (19) | 21 (15) | 12 (10) | 6 (4) | 5 (1) |
| 17 | 74 (75) | – | 42 (40) | – | 23 (30) |