From: The relative risk of second primary cancers in Queensland, Australia: a retrospective cohort study
 | Age group at first diagnosis | |||||
---|---|---|---|---|---|---|
 | 15-49 years | 50-64 years | 65 years and over | |||
First primary cancer | Obs. | SIR (95% CI) | Obs. | SIR (95% CI) | Obs. | SIR (95% CI) |
   Head and neck | 223 | 2.07 (1.80-2.36) | 884 | 2.20 (2.06-2.35) | 882 | 1.77 (1.65-1.89) |
   Oesophagus | 6 | 4.00 (1.47-8.70) | 39 | 1.70 (1.21-2.32) | 60 | 1.16 (0.88-1.49) |
   Stomach | 17 | 1.59 (0.93-2.55) | 60 | 1.04 (0.79-1.34) | 129 | 0.91 (0.76-1.08) |
   Colorectal | 188 | 1.58 (1.36-1.82) | 994 | 1.15 (1.08-1.22) | 1,864 | 1.03 (0.99-1.08) |
   Pancreas | -- | -- | 26 | 1.60 (1.05-2.35) | 23 | 0.61 (0.39-0.92) |
   Lung | 52 | 2.46 (1.84-3.23) | 270 | 1.55 (1.37-1.74) | 407 | 1.24 (1.12-1.36) |
   Melanoma | 1,121 | 2.05 (1.94-2.18) | 1,755 | 1.80 (1.72-1.89) | 2,216 | 1.74 (1.67-1.81) |
   Breast - female | 689 | 1.86 (1.72-2.00) | 1,047 | 1.29 (1.21-1.37) | 1,226 | 1.15 (1.08-1.21) |
   Cervix | 129 | 1.33 (1.11-1.57) | 94 | 1.49 (1.21-1.83) | 77 | 1.27 (1.01-1.59) |
   Uterus | 47 | 1.63 (1.20-2.17) | 164 | 1.07 (0.91-1.25) | 198 | 1.16 (1.00-1.33) |
   Ovary | 33 | 1.25 (0.86-1.76) | 64 | 1.12 (0.87-1.44) | 67 | 1.06 (0.82-1.34) |
   Prostate | 7 | 0.81 (0.32-1.66) | 554 | 0.87 (0.80-0.95) | 2,445 | 0.82 (0.79-0.85) |
   Kidney | 52 | 1.63 (1.22-2.14) | 230 | 1.59 (1.39-1.81) | 373 | 1.57 (1.42-1.74) |
   Bladder | 81 | 2.02 (1.60-2.51) | 465 | 1.63 (1.49-1.79) | 1,134 | 1.70 (1.60-1.80) |
   Brain & CNS | 27 | 1.64 (1.08-2.39) | 15 | 0.94 (0.52-1.55) | 8 | 0.48 (0.21-0.95) |
   Thyroid | 65 | 1.22 (0.94-1.55) | 84 | 1.39 (1.11-1.72) | 66 | 1.37 (1.06-1.74) |
   Non-Hodgkin lymphoma | 81 | 1.60 (1.27-1.99) | 261 | 1.57 (1.39-1.77) | 347 | 1.23 (1.10-1.36) |
   Lymphoid leukaemia | 27 | 2.68 (1.77-3.90) | 131 | 1.69 (1.42-2.01) | 264 | 1.57 (1.39-1.77) |
   Myeloid leukaemia | 22 | 2.23 (1.40-3.38) | 33 | 1.39 (0.96-1.95) | 70 | 1.35 (1.05-1.70) |
   Myeloma/PCT | 8 | 1.40 (0.61-2.77) | 47 | 1.35 (0.99-1.79) | 79 | 0.89 (0.70-1.10) |
   Other | 273 | 1.69 (1.49-1.90) | 472 | 1.43 (1.30-1.56) | 808 | 1.20 (1.12-1.29) |
   All cancers combined | 3,150 | 1.84 (1.77-1.90) | 7,687 | 1.39 (1.36-1.42) | 12,743 | 1.23 (1.20-1.25) |