Table 3.
Correlation between clinicopathologic characteristics and PC
| A
| |||
|---|---|---|---|
| Variables | No. of patients | PC
|
|
| Median (range) | P | ||
| Sex | 0.9a | ||
| Male | 187 | 0.53 (0–5.40) | |
| Female | 97 | 0.60 (0–3.77) | |
| Primary tumor | 0.79b | ||
| Right colon | 87 | 0.56 (0–5.4) | |
| Left colon | 95 | 0.52 (0–2.98) | |
| Rectum | 102 | 0.62 (0–3.7) | |
| Pathological type | 0.12b | ||
| Well differentiated | 3 | 0.16 (0.03–0.27) | |
| Moderately differentiated | 177 | 0.49 (0–3.77) | |
| Poorly differentiated | 64 | 0.61 (0–3.14) | |
| Mucinous adenocarcinoma | 35 | 0.69 (0–5.4) | |
| Unknown | 5 | 0.47 (0.20–1.04) | |
| Pathologic tumor classification | 0.22b | ||
| T1 | 4 | 0.60 (0.45–1.05) | |
| T2 | 9 | 0.81 (0.05–2.57) | |
| T3 | 50 | 0.49 (0–3.77) | |
| T4 | 219 | 2.23 (0–3.77) | |
| Unknown | 2 | 2.23 (0.76–3.7) | |
| Lymphatic invasion | 0.91a | ||
| Yes | 201 | 0.55 (0–5.40) | |
| No | 83 | 0.56 (0–3.14) | |
| Vascular invasion | 0.51a | ||
| Yes | 26 | 0.60 (0.03–3.14) | |
| No | 258 | 0.53 (0–5.40) | |
| Perineural invasion | 0.03a | ||
| Yes | 8 | 0.99 (0.34–2.76) | |
| No | 276 | 0.53 (0–5.40) | |
|
| |||
| B | |||
|
| |||
| Spearman rank correlation | r | P | |
| Age at diagnosis | −0.11 | 0.08 | |
| Tumor size | 0.04 | 0.55 | |
Notes:
a
These P-values were determined using the Wilcoxon rank-sum test.
b
These P-values were determined using the Kruskal-Wallis test.
Abbreviations: PC, perivascular cell coverage; r, Spearman correlation coefficient.