Table 2a.
The clinicopathological characteristics of patients undergoing surgery for colon cancer (n = 801)
| Variables | n = 801 (%) |
|---|---|
| Age (years) | |
| <65 | 248 (31) |
| 65–74 | 270 (34) |
| >75 | 283 (35) |
| Sex | |
| Female | 371 (46) |
| Male | 430 (54) |
| BMIa | |
| Underweight | 72 (12) |
| Normal | 190 (31) |
| Overweight | 192 (32) |
| Obese | 153 (25) |
| ASA gradeb | |
| 1 | 97 (17) |
| 2 | 243 (42) |
| 3 | 208 (36) |
| 4 | 29 (5) |
| Presentation | |
| Elective | 689 (86) |
| Emergency | 112 (14) |
| Type of surgery | |
| Open | 679 (85) |
| Laparoscopic | 122 (15) |
| Neoadjuvant therapyc | |
| No | 782 (99) |
| Yes | 8 (1) |
| Adjuvant therapyd | |
| No | 574 (75) |
| Yes | 194 (25) |
| T stage | |
| 1 | 52 (6) |
| 2 | 76 (10) |
| 3 | 418 (52) |
| 4 | 255 (32) |
| N stage | |
| 0 | 507 (63) |
| 1 | 207 (26) |
| 2 | 87 (11) |
| TNM stage | |
| 1 | 116 (14) |
| 2 | 391 (49) |
| 3 | 294 (37) |
| Differentiatione | |
| Mod/well | 709 (89) |
| Poor | 86 (11) |
| Venous invasionf | |
| No | 383 (48) |
| Yes | 416 (52) |
| Margin involvementf | |
| No | 757 (95) |
| Yes | 42 (5) |
| Peritoneal involvementf | |
| No | 578 (72) |
| Yes | 221 (28) |
| Tumour perforationf | |
| No | 772 (97) |
| Yes | 27 (3) |
an = 607.
bn = 575.
cn = 790.
dn = 778.
en = 795.
fn = 799.
BMI body mass index, ASA American Society of Anaesthesiologists, TNM tumour node metastasis