Table 1. Patient demographics and baseline characteristics.
| Indicators | Type | MWA (n= 28) | Resection (n = 34) | Χ2 | P value |
|---|---|---|---|---|---|
| Gender | Male | 15 | 18 | 0.002 | 0.961 |
| Female | 13 | 16 | |||
| Age (years) | ≤60 | 16 | 28 | 4.736 | 0.030 |
| >60 | 12 | 6 | |||
| Number | 1 | 18 | 22 | 0.001 | 0.973 |
| 2~3 | 10 | 12 | |||
| Size | ≤3 cm | 14 | 20 | 0.483 | 0.487 |
| >3 cm | 14 | 14 | |||
| Child-Pugh | A | 20 | 26 | 0.204 | 0.652 |
| B | 8 | 8 | |||
| Metastasis time | Heterochronisma | 18 | 18 | 0.812 | 0.368 |
| Synchronismb | 10 | 16 | |||
| Pathological type | Low differentiation | 10 | 13 | 0.247 | 0.884 |
| Mild differentiation | 14 | 15 | |||
| High differentiation | 4 | 6 |
a: CRLM occurred at less than 6 months following the CRC resection.
b: CRLM occurred at more than 6 months after the CRC resection