Table 2 Evaluation of the tumor location with univariate method
Left | Right | Rectum | Ʃ | Test, p value | ||
|---|---|---|---|---|---|---|
Total | 207 | 138 | 259 | 604 (100%) | ||
Gender | Male (%) | 123 (35.1%) | 70 (20%) | 157 (44.9%) | 350 (100%) | Pearson’s chi-squared test; p = 0.1425 |
Female (%) | 84 (33.1%) | 68 (26.8%) | 102 (40.2%) | 254 (100%) | ||
Age | Mean ± SD | 66.3 ± 11.4 | 70.1 ± 11.3 | 64.6 ± 11.2 | ANOVA, p < 0.0001 Tukey’s multiple comparisons of means: left-right p = 0.0068829; rectum-right p = 0.0000151; rectum-left p = 0.2394 | |
Min–max | 28–96 | 41–97 | 21–91 | |||
Above the age of 65 (%) | 112 (33.3%) | 96 (28.6%) | 128 (38.1%) | 336 (100%) | Pearson’s chi-squared test; p value = 0.1736 | |
Maximum 65 years old | 95 (35.4%) | 42 (15.7%) | 131 (48.9%) | 268 (100%) | ||
Smoking | Smoking | 14 (26.9%) | 7 (13.5%) | 31 (59.6%) | 52 (100%) | Pearson’s chi-squared test; p = 0.05634 |
Quit smoking | 5 (19.2%) | 5 (19.2%) | 16 (61.5%) | 26 (100%) | ||
Not smoking | 188 (35.7%) | 126 (24%) | 212 (40.3%) | 526 (100%) | ||
Alcohol consumption | Regular alcohol consumption | 4 (16.7%) | 6 (25%) | 14 (58.3%) | 24 (100%) | Pearson’s chi-squared test; p = 0.157 |
No alcohol consumption | 203 (35%) | 132 (22.8%) | 245 (42.2%) | 580 (100%) | ||
Acetylsalicylic therapy | Acetylsalicylic acid intake | 25 (27.8%) | 26 (28.9%) | 39 (43.3%) | 90 (100%) | Pearson’s chi-squared test; p = 0.22306 |
No acetylsalicylic acid intake | 182 (35.4%) | 112 (21.8%) | 220 (42.8%) | 514 (100%) | ||
Previous CRC | Positive | 6 (30%) | 4 (20%) | 10 (50%) | 20 (100%) | Pearson’s chi-squared test; p = 0.8073 |
Negative | 201 (34.4%) | 134 (22.9%) | 249 (42.6%) | 584 (100%) | ||
Family history | Positive | 5 (26.3%) | 2 (10.5%) | 12 (63.2%) | 19 (100%) | Pearson’s chi-squared test; p = 0.1698 |
Negative | 202 (34.5%) | 136 (23.2%) | 247 (42.2%) | 585 (100%) | ||
APP | Previous APP | 29 (29%) | 35 (35%) | 36 (36%) | 100 (100%) | Pearson’s chi-squared test; p = 0.006601 |
No previous APP | 178 (35.3%) | 103 (20.4%) | 223 (44.2%) | 504 (100%) | ||
APP performed more than 10 years ago | 28 (30.4%) | 32 (34.8%) | 32 (34.8%) | 92 (100%) | ||
CCK | Previous CCK | 16 (24.6%) | 24 (36.9%) | 25 (38.5%) | 65 (100%) | Pearson’s chi-squared test; p = 0.01337 |
No previous CCK | 191 (35.4%) | 114 (21.2%) | 234 (43.4%) | 539 (100%) |