Table 3.
Characteristics of patients in the prospective study
| Clinical factors | Prospective study |
|---|---|
| Age, mean ± SD, years | 63.59 ± 10.04 |
| Gender, no (%) | |
| Male | 18(56.2) |
| Female | 14(43.8) |
| Tumor diameter, median (IQR), cm | 4.5(4.0–5.5) |
| Location | |
| Lower | 14(43.8) |
| Middle | 17(53.1) |
| Upper | 1(3.1) |
| Differentiation degree | |
| Poorly | 3(9.4) |
| Moderately | 26(81.2) |
| Well | 3(9.4) |
| CEA level, no (%) | |
| Normal | 23(71.9) |
| Abnormal | 9(28.1) |
| CA199 level, no (%) | |
| Normal | 26(81.2) |
| Abnormal | 6(18.8) |
| Stage, no (%) | |
| T1–T2 | 10(31.3) |
| T3–T4 | 22(68.7) |
SD standard deviation, IQR interquartile range, CEA carcinoembryonic antigen, CA199 carbohydrate antigen 199