Table 3.
Comparing relationships between first and second primary uveal melanomas (UM) and the other malignancies
| Characteristics | First primary UM | Second primary UM |
| Age at diagnosis of the other malignancy (mean age in years, SD) | 70.6 (11) | 61.8 (11.9) |
| Independent-samples Mann-Whitney U test p<0.0001 |
||
| Latency period between UM and the other malignancy (mean latency in months, SD) | 106.7 (88.5) | 103.4 (82.6) |
| Independent-samples Mann-Whitney U test p=0.95 |
||
| Site of the other malignancy | ||
| Breast* | 65 (24.9) | 94 (47.7) |
| Prostate* | 110 (28.6) | 116 (48.3) |
| Colon and rectum | 61 (9.4) | 53 (12.1) |
| Lung and bronchus | 82 (12.7) | 12 (2.7) |
| Urinary bladder | 36 (5.6) | 26 (5.9) |
| Melanoma of the skin | 61 (9.4) | 38 (8.7) |
| Corpus uteri* | 17 (6.5) | 16 (8.1) |
| Non-Hodgkin's lymphoma | 19 (2.9) | 11 (2.5) |
| Oral cavity and pharynx | 7 (1.1) | 10 (2.3) |
| Thyroid | 11 (1.7) | 12 (4.6) |
| Ovary* | 10 (3.8) | 9 (2.1) |
| Leukaemia | 18 (2.8) | 9 (2.1) |
| Kidney and renal pelvis | 27 (4.2) | 7 (1.6) |
| Eye and orbit | 9 (1.4) | 2 (0.5) |
| Other sites | 113 (17.5) | 22 (5) |
*Percentages for these cancer were calculated as gender based (the denominator was males/females instead of the overall population).