Table 2 Characteristics of newly diagnosed male cancer patients with prior cancer
Index Cancer Site | Lung | Stomach | Colorectum | |||
|---|---|---|---|---|---|---|
N | % | N | % | N | % | |
Total | 4628 | 100 | 5800 | 100 | 3841 | 100 |
Number of prior cancers before the index cancer | ||||||
 1 | 4100 | 88.6 | 5256 | 90.6 | 3457 | 90.0 |
 2 | 481 | 10.4 | 507 | 8.7 | 343 | 8.9 |
 3 | 44 | 1.0 | 35 | 0.6 | 39 | 1.0 |
 4 | 2 | 0.0 | 2 | 0.0 | 1 | 0.0 |
 5 | 1 | 0.0 | 0 | 0.0 | 1 | 0.0 |
Diagnostic time intervala | ||||||
  < 3 months | 741 | 16.0 | 1687 | 29.1 | 1240 | 32.3 |
 3 months–1 year | 555 | 12.0 | 656 | 11.3 | 428 | 11.1 |
 1–5 years | 1916 | 41.4 | 2006 | 34.6 | 1232 | 32.1 |
 5–10 years | 988 | 21.3 | 1017 | 17.5 | 641 | 16.7 |
 10–15 years | 428 | 9.2 | 434 | 7.5 | 300 | 7.8 |
Stage of prior cancerb | ||||||
 Localized | 2941 | 63.5 | 3320 | 57.2 | 2308 | 60.1 |
 Regional lymph nodes | 455 | 9.8 | 650 | 11.2 | 350 | 9.1 |
 Regional extension | 528 | 11.4 | 797 | 13.7 | 501 | 13.0 |
 Distant metastasis | 229 | 4.9 | 453 | 7.8 | 325 | 8.5 |
 Other or unknown | 475 | 10.3 | 580 | 10.0 | 357 | 9.3 |
Treatment of prior cancerb | ||||||
 Radiotherapy only | 185 | 4.0 | 265 | 4.6 | 152 | 4.0 |
 Chemotherapy only | 252 | 5.4 | 438 | 7.6 | 310 | 8.1 |
 Chemoradiotherapy | 148 | 3.2 | 296 | 5.1 | 141 | 3.7 |
 Surgery only | 1986 | 42.9 | 2246 | 38.7 | 1468 | 38.2 |
 Surgery plus chemotherapy or radiotherapy | 631 | 13.6 | 893 | 15.4 | 535 | 13.9 |
 Other or unknown | 1426 | 30.8 | 1662 | 28.7 | 1235 | 32.2 |
Site of prior cancerb | ||||||
 Mouth and pharynx | 209 | 4.5 | 254 | 4.4 | 137 | 3.6 |
 Esophagus | 236 | 5.1 | 646 | 11.1 | 172 | 4.5 |
 Stomach | 1290 | 27.9 | – | – | 1302 | 33.9 |
 Colon | 543 | 11.7 | 970 | 16.7 | – | – |
 Rectum | 342 | 7.4 | 602 | 10.4 | – | – |
 Liver | 234 | 5.1 | 570 | 9.8 | 278 | 7.2 |
 Gallbladder and bile duct | 40 | 0.9 | 75 | 1.3 | 56 | 1.5 |
 Pancreas | 45 | 1.0 | 69 | 1.2 | 35 | 0.9 |
 Larynx | 172 | 3.7 | 198 | 3.4 | 90 | 2.3 |
 Lung | – | – | 591 | 10.2 | 386 | 10.0 |
 Melanoma of skin | 4 | 0.1 | 7 | 0.1 | 4 | 0.1 |
 Other skin | 73 | 1.6 | 67 | 1.2 | 66 | 1.7 |
 Mesothelioma | 4 | 0.1 | 7 | 0.1 | 9 | 0.2 |
 Prostate | 687 | 14.8 | 924 | 15.9 | 646 | 16.8 |
 Bladder | 265 | 5.7 | 281 | 4.8 | 213 | 5.5 |
 Renal and urinary tract | 164 | 3.5 | 185 | 3.2 | 172 | 4.5 |
 Brain and central nervous system | 5 | 0.1 | 8 | 0.1 | 7 | 0.2 |
 Thyroid | 38 | 0.8 | 42 | 0.7 | 38 | 1.0 |
 Hodgkin lymphoma | 12 | 0.3 | 4 | 0.1 | 8 | 0.2 |
 Non-Hodgkin lymphoma | 118 | 2.5 | 142 | 2.4 | 97 | 2.5 |
 Immunoproliferative diseases | 1 | 0.0 | 1 | 0.0 | 0 | 0.0 |
 Myeloma | 18 | 0.4 | 19 | 0.3 | 17 | 0.4 |
 Lymphoid leukemia | 13 | 0.3 | 11 | 0.2 | 8 | 0.2 |
 Myeloid leukemia | 13 | 0.3 | 17 | 0.3 | 14 | 0.4 |
 Leukemia unspecified | 0 | 0.0 | 0 | 0.0 | 1 | 0.0 |
 Others | 102 | 2.2 | 110 | 1.9 | 85 | 2.2 |