Table 1.
Number of patients and median age at diagnosis (in years) of primary cancer and site of extranodal metastasis. Because patients may have several metastases, the sum of metastases is larger than that of patients
| Primary cancer | Male | Female | All | ||||||
|---|---|---|---|---|---|---|---|---|---|
| N | Col % | Median age at diagnosis | N | Col % | Median age at diagnosis | N | Col % | Median age at diagnosis | |
| Upper aerodigestive | 1718 | 2 | 63.8 | 791 | 1 | 65.6 | 2509 | 1 | 64.3 |
| Esophagus | 1770 | 2 | 66.1 | 489 | 1 | 69.6 | 2259 | 1 | 66.6 |
| Stomach | 4088 | 4 | 69.7 | 2484 | 3 | 71.2 | 6572 | 4 | 70.3 |
| Colorectum | 16 962 | 18 | 69.7 | 14 429 | 17 | 71.3 | 31 391 | 17 | 70.3 |
| Liver | 2524 | 3 | 69.4 | 3129 | 4 | 71.8 | 5653 | 3 | 70.7 |
| Pancreas | 4240 | 5 | 68.3 | 4121 | 5 | 70.3 | 8361 | 5 | 69.3 |
| Lung | 13 951 | 15 | 68.0 | 11 276 | 13 | 66.5 | 25 227 | 14 | 67.3 |
| Breast | 0 | 25 594 | 29 | 60.0 | 25 594 | 14 | 60.0 | ||
| Other female genital | 0 | 5867 | 7 | 67.3 | 5867 | 3 | 67.3 | ||
| Ovary | 0 | 6257 | 7 | 64.3 | 6257 | 3 | 64.3 | ||
| Prostate | 28 936 | 31 | 72.8 | 0 | 28 936 | 16 | 72.8 | ||
| Kidney | 4365 | 5 | 66.1 | 3000 | 3 | 68.9 | 7365 | 4 | 67.3 |
| Bladder | 3284 | 4 | 71.2 | 1157 | 1 | 72.9 | 4441 | 2 | 71.5 |
| Melanoma | 3015 | 3 | 63.3 | 1908 | 2 | 61.5 | 4923 | 3 | 62.6 |
| Othera | 7860 | 8 | 64.4 | 6366 | 7 | 67.8 | 14 226 | 8 | 66.1 |
| All above | 92 713 | 100 | 69.8 | 86 868 | 100 | 66.3 | 179 581 | 100 | 68.3 |
| Location of metastasis | ICD‐9 code | ICD‐10 code | Male | Female | All | |||
|---|---|---|---|---|---|---|---|---|
| N | % of total | N | % of total | N | % of total | |||
| Lung | 197.0 | C78.0 | 19 191 | 15 | 22 931 | 16 | 42 122 | 15 |
| Pleura | 197.2 | C78.2 | 3256 | 2 | 6729 | 5 | 9985 | 4 |
| Other respiratory | 197.1/3 | C78.1/3 | 1786 | 1 | 1839 | 1 | 3625 | 1 |
| Peritoneum | 197.6 | C78.6 | 5882 | 4 | 12 156 | 9 | 18 038 | 7 |
| Liver | 197.7 | C78.7 | 32 160 | 24 | 34 346 | 24 | 66 506 | 24 |
| Other G‐I | 197.4‐5/8 | C78.4‐5/8 | 4481 | 3 | 5591 | 4 | 10 072 | 4 |
| Urinary system | 198.0/1 | C79.0/1 | 1746 | 1 | 1355 | 1 | 3101 | 1 |
| Skin | 1982 | C79.2 | 1851 | 1 | 4037 | 3 | 5888 | 2 |
| Nervous system | 198.3/4 | C79.3/4 | 11 890 | 9 | 13 965 | 10 | 25 855 | 9 |
| Bone | 198.5 | C79.5 | 39 126 | 30 | 24 218 | 17 | 63 344 | 23 |
| Ovary | 198.6 | C79.6 | 0 | 0 | 1395 | 1 | 1395 | 1 |
| Adrenal gland | 198.7 | C79.7 | 2202 | 2 | 1769 | 1 | 3971 | 1 |
| Other | 198.8 | C79.8 | 8335 | 6 | 11 099 | 8 | 19 434 | 7 |
| Sum of all metastases | 131 906 | 100 | 141 430 | 100 | 273 336 | 100 | ||
a
Other ICD‐7 codes 140‐209 except code 199 (cancer of unknown primary). Col%, percent distribution of patients. Other G‐I, other gastro‐intestinal location.