Table 1 Trends in baseline demographic and pathological characteristics of the study population (2000–2016)
Variable | Total | Appendix | Cecum | Othera |
|---|---|---|---|---|
No. of patients (n) | 581 | 354 | 56 | 171 |
Median age (years) | 59 | 57 | 61.5 | 63 |
Gender, n (%) | ||||
Women | 274 (47.2) | 176 (49.7) | 25 (44.6) | 73 (42.7) |
Men | 307 (52.8) | 178 (50.3) | 31 (55.4) | 98 (57.3) |
Race, n (%) | ||||
White | 472 (81.2) | 307 (86.7) | 44 (78.6) | 121 (70.8) |
Black | 67 (11.5) | 33 (9.3) | 9 (16.1) | 25 (14.6) |
Otherb | 42 (7.3) | 14 (4.0) | 3 (5.3) | 25 (14.6) |
SEER historic stage, n (%) | ||||
Localized | 157 (27.0) | 101 (28.5) | 7 (12.5) | 49 (28.7) |
Regional | 234 (40.3) | 135 (38.1) | 25 (44.6) | 74 (43.3) |
Distant | 184 (31.7) | 114 (32.2) | 23 (41.1) | 47 (27.5) |
Unstaged | 6 (1.0) | 4 (1.1) | 1 (1.8) | 1 (0.5) |
Grade, n (%) | ||||
Well differentiated | 52 (9.0) | 32 (9.0) | 1 (1.8) | 19 (11.1) |
Moderately differentiated | 88 (15.1) | 45 (12.7) | 8 (14.3) | 35 (20.5) |
Poorly differentiated | 205 (35.3) | 125 (35.3) | 32 (57.1) | 48 (28.1) |
Undifferentiated | 46 (7.9) | 15 (4.3) | 6 (10.7) | 2514.6) |
Unknown | 190 (32.7) | 137 (38.7) | 9 (16.1) | 44 (25.7) |