| Exclusions* | n | Observed | Expected | SMR (95% CI) |
| None | 574 | 46 | 6.22 | 7.40 (5.41 to 9.86) |
| Those who died<1 year | 408 | 33 | 5.98 | 5.52 (3.80 to 7.75) |
| Those who died<2 years | 329 | 24 | 5.52 | 4.35 (2.79 to 6.47) |
| Those who died<3 years | 270 | 17 | 5.08 | 3.35 (1.95 to 5.36) |
| Those who died<4 years | 227 | 13 | 4.60 | 2.83 (1.50 to 4.83) |
| Those who died<5 years | 186 | 7 | 3.95 | 1.77 (0.71 to 3.65) |
*Subjects excluded from analysis based on time between diagnosis and death.