Table 3 Association between PLR and the patients’ characteristics
|  | PLR < 154 | PLR ≥ 154 | p value |
|---|---|---|---|
Age (year) | 0.223 | ||
 ≤ 60 | 78 | 55 |  |
 > 60 | 110 | 103 |  |
Gender | 0.818 | ||
 Male | 128 | 105 |  |
 Female | 60 | 53 |  |
Tumor location | 0.941 | ||
 Upper third | 26 | 47 |  |
 Middle third | 23 | 17 |  |
 Lower third | 133 | 116 |  |
 Two-thirds or more | 6 | 4 |  |
Tumor size | < 0.001 | ||
 ≤ 5 cm | 135 | 73 |  |
 > 5 cm | 53 | 85 |  |
Histologic type | 0.156 | ||
 Differentiated | 74 | 75 |  |
 Undifferentiated | 114 | 83 |  |
Perineural invasion | 0.194 | ||
 Absence | 79 | 78 |  |
 Presence | 109 | 80 |  |
Lymphovascular invasion | 0.509 | ||
 Absence | 77 | 59 |  |
 Presence | 111 | 99 |  |
T category | 0.835 | ||
 T1 | 7 | 4 |  |
 T2 | 15 | 10 |  |
 T3 | 7 | 6 |  |
 T4a | 153 | 135 |  |
 T4b | 6 | 3 |  |
N category | 0.416 | ||
 N0 | 35 | 28 |  |
 N1 | 39 | 29 |  |
 N2 | 58 | 41 |  |
 N3a | 45 | 43 |  |
 N3b | 11 | 17 |  |
CEA | 0.275 | ||
 ≤ 5 ng/mL | 166 | 133 |  |
 > 5 ng/mL | 22 | 25 |  |