Table 1.
Baseline characteristics of the patientsa
| Cancer site | |||
|---|---|---|---|
| |
Colon(n, %) |
Recto-sigmoid(n, %) |
Rectum(n, %) |
|
Number of patients |
257 (46.8) |
66 (12.0) |
226 (41.2) |
|
Age in years (Mean ± SD) |
53.4 ± 14.7 |
53.6 ± 17.3 |
54.3 ± 15.2 |
|
Gender | |||
| Female |
96 (51.6) |
25 (13.4) |
65 (34.9) |
| Male |
161 (44.4) |
41 (11.3) |
161 (44.4) |
|
Grade | |||
| Grade I (Well diff) |
26 (44.8) |
5 (8.6) |
27 (46.6) |
| Grade II (Mod diff) |
157 (44.7) |
48 (13.7) |
146 (41.6) |
| Grade III (Poor diff) |
25 (46.3) |
3 (5.6) |
26 (48.1) |
| Grade IV (Undiff anaplastic) |
4 (66.7) |
0 (0) |
2 (33.3) |
| Unknown |
45 (56.3) |
10 (12.5) |
25 (31.3) |
|
Extentb | |||
| Localized |
48 (39.3) |
14 (11.5) |
60 (49.2) |
| Regional: Direct Ext |
59 (54.6) |
11 (10.2) |
38 (35.2) |
| Regional: Lymph Node |
12 (27.3) |
9 (20.5) |
23 (52.3) |
| Regional: Dir Ext and lymph node |
64 (59.8) |
9 (8.4) |
34 (31.8) |
| Regional NOS |
0 (0) |
0 (0) |
1 (100.0) |
| Distant Metastasis |
63 (44.4) |
21 (14.8) |
58 (40.8) |
| Unknown |
11 (44.0) |
2 (8.0) |
12 (48.0) |
|
Status | |||
| Dead |
152 (44.1) |
43 (12.5) |
150 (43.5) |
| Alive |
105 (51.5) |
23 (11.3) |
76 (37.3) |
|
Cause of death | |||
| Cancer |
15 (62.5) |
3 (12.5) |
6 (25.0) |
| Unknown |
137 (42.7) |
40 (12.5) |
144 (44.9) |
| Not applicable | 105 (51.5) | 23 (11.3) | 76 (37.3) |
Abbreviations: Diff, differentiation; Dir, direct; Ext, extent; Mod, moderate; NOS, not otherwise specified; Undiff, undifferentiated.
aData are presented as frequency (percent) unless otherwise specified.
bp<0.05 for χ2 test. Except for extent, the characteristics of the patients did not differ significantly among different cancer patients.