Table 3 Site distribution of second primary cancers (SPCs) in patients with other cancer first (OCF) and colorectal cancer first (CRCF)
Parameters | OCF (%) | CRCF (%) | P value |
|---|---|---|---|
(N = 51) | (N = 22) | ||
Gastric cancer | 14 (27.5) | 1 (4.5) | 0.026 |
Hepatocellular carcinoma (HCC) | 2 (3.9) | 6 (27.3) | 0.003 |
Breast cancer | 10 (19.6) | 2 (9.1) | 0.266 |
Prostate cancer | 2 (3.9) | 0 (0) | 0.346 |
Cervical cancer | 3 (5.9) | 0 (0) | 0.245 |
Ovarian cancer | 0 (0) | 2 (9.1) | 0.029 |
Bladder cancer | 4 (7.8) | 4 (18.2) | 0.194 |
Lung cancer | 2 (3.9) | 2 (9.1) | 0.373 |
Thyroid cancer | 5 (9.8) | 0 (0) | 0.128 |
Nasal pharyngeal cancer | 4 (7.8) | 0 (0) | 0.177 |
Lymphoma | 2 (3.9) | 1 (4.5) | 0.902 |
Oral cancer | 3 (5.9) | 1 (4.5) | 0.818 |
Gallbladder cancer | 0 (0) | 1 (4.5) | 0.125 |
Thymus cancer | 0 (0) | 1 (4.5) | 0.125 |
Brain cancer | 0 (0) | 1 (4.5) | 0.125 |
HBV and HCV carrier | 7 (13.7) | 6 (27.3) | 0.165 |