Table 2. The top five distribution of synchronous and metachronous double primary cancer in 12877 cases of thyroid cancer patients.
| DPC type | No.of MDPCs (%) (Total TC, n=12877) |
No.of SDPCs (%) (Total TC, n=12877) |
|---|---|---|
| Total DPC | 232(1.8) | 83(0.64) |
| Breast cancer | 117(0.91) | 53(0.41) |
| Stomach cancer | 25(0.19) | 11(0.09) |
| Endometrial cancer | 21 (0.16) | 4(0.03) |
| Ovarian cancer | 15(0.11) | 3(0.02) |
| Cervical cancer | 11(0.09) | 3(0.02) |
Abbreviations: DPC: Double primary cancer, MDPCs: Metachronous double primary cancers, SDPCs: Synchronous double primary cancers