Table 4 The relationship between the clinicopathological factors and the preoperative/preoperative PNI in the validation study
Preoperative PNI | Postoperative PNI | |||||
|---|---|---|---|---|---|---|
High | Low | p-value | High | Low | p-value | |
Gender | ||||||
Male | 52 | 18 | 87 | 13 | ||
Female | 54 | 5 | 0.012 | 73 | 13 | 0.679 |
Age (years) | ||||||
≤70 | 65 | 8 | 99 | 16 | ||
>70 | 41 | 15 | 0.035 | 61 | 10 | 1.000 |
Location of primary tumor | ||||||
Colon | 57 | 15 | 81 | 13 | ||
Rectum | 49 | 8 | 0.361 | 79 | 13 | 1.000 |
Tumor depth | ||||||
≤T3 | 78 | 15 | 110 | 20 | ||
T4 | 28 | 8 | 0.447 | 50 | 6 | 0.493 |
Histological type | ||||||
Well, Moderately | 98 | 22 | 147 | 25 | ||
Poorly, Mucinous | 8 | 1 | 1.000 | 13 | 1 | 0.696 |
The number of lymph node metastases | ||||||
0 | 42 | 10 | 62 | 5 | ||
1-3 | 45 | 10 | 67 | 16 | ||
≥4 | 19 | 3 | 0.844 | 31 | 5 | 0.116 |
Preoperative CEA (ng/ml) | ||||||
≤5 | 74 | 15 | 112 | 14 | ||
>5 | 22 | 8 | 0.286 | 39 | 4 | 1.000 |
Preoperative CA19-9 (U/ml) | ||||||
≤37 | 89 | 21 | 141 | 14 | ||
>37 | 4 | 2 | 0.340 | 8 | 3 | 0.088 |
The amount of blood lost (ml) | ||||||
≤100 | 50 | 11 | 87 | 10 | ||
>100 | 54 | 12 | 1.000 | 67 | 16 | 0.094 |
Length of operation (min) | ||||||
≤240 | 75 | 13 | 103 | 15 | ||
>240 | 29 | 10 | 0.210 | 51 | 11 | 0.379 |
Complication(s) | ||||||
No | 78 | 15 | 112 | 17 | ||
Yes | 28 | 8 | 0.447 | 47 | 9 | 0.647 |
Infectious complication(s) | ||||||
No | 84 | 19 | 120 | 22 | ||
Yes | 22 | 4 | 1.000 | 39 | 4 | 0.453 |
The number of hospitalization days (days) | ||||||
≤17 | 56 | 10 | 92 | 9 | ||
>17 | 50 | 13 | 0.493 | 68 | 17 | 0.035 |
The number of postoperative days before the initiation of dietary intake (days) | ||||||
≤3 | 73 | 18 | 120 | 14 | ||
>3 | 33 | 5 | 0.455 | 40 | 12 | 0.034 |
Adjuvant chemotherapy | ||||||
No | 78 | 13 | 40 | 5 | ||
Yes | 28 | 10 | 0.131 | 120 | 21 | 0.628 |