Table 2.
Age of diagnosis stratified by sibling-groups
| Age | Brothers N (%) |
Sisters N (%) |
Brother-and-sister N (%) | All N (%) | ||
|---|---|---|---|---|---|---|
| Brothers | Sisters | Both | ||||
| ≤ 30 | 5 (0.9) | 7 (1.2) | 3 (0.7) | 4 (0.9) | 7 (0.8) | 19 (0.9) |
| 31 ~ 35 | 8 (1.5) | 16 (2.7) | 9 (2.0) | 4 (0.9) | 13 (1.4) | 37 (1.8) |
| 36 ~ 40 | 14 (2.5) | 24 (4.0) | 5 (1.1) | 22 (4.9) | 27 (3.0) | 65 (3.2) |
| 41 ~ 45 | 24 (4.4) | 61 (10.3) | 20 (4.5) | 26 (5.8) | 46 (5.2) | 131 (6.4) |
| 46 ~ 50 | 53 (9.6) | 83 (14.0) | 32 (7.2) | 48 (10.8) | 80 (9.0) | 216 (10.6) |
| 51 ~ 55 | 66 (12.0) | 72 (12.1) | 70 (15.7) | 57 (12.8) | 127 (14.2) | 265 (13.0) |
| 56 ~ 60 | 85 (15.5) | 89 (15.0) | 85 (19.1) | 53 (11.9) | 138 (15.5) | 312 (15.3) |
| 61 ~ 65 | 79 (14.3) | 83 (14.0) | 65 (14.6) | 72 (16.2) | 137 (15.4) | 299 (14.7) |
| 66 ~ 70 | 86 (15.6) | 60 (10.1) | 62 (13.9) | 67 (15.0) | 129 (14.5) | 275 (13.5) |
| 71 ~ 75 | 72 (13.1) | 56 (9.4) | 59 (13.2) | 57 (12.8) | 116 (13.0) | 244 (12.0) |
| 76 ~ 80 | 34 (6.2) | 30 (5.0) | 20 (4.5) | 24 (5.4) | 44 (4.9) | 108 (5.3) |
| 81 ~ 85 | 15 (2.7) | 11 (1.9) | 10 (2.2) | 10 (2.2) | 20 (2.2) | 46 (2.3) |
| 86 ~ 90 | 8 (1.5) | 2 (0.3) | 6 (1.3) | 1 (0.2) | 7 (0.8) | 17 (0.9) |
| > 90 | 1 (0.2) | 0 (0) | 0 (0) | 1 (0.2) | 1 (0.1) | 2 (0.1) |
| Total | 550 (100) | 594 (100) | 446 (100) | 446 (100) | 892 (100) | 2036 (100) |