Characteristic | No. of Patients | SPARC expression (stroma) | χ2 test | |
negative | positive | |||
Sex | ||||
Male | 86 | 31 | 55 | P = 0.832 |
Female | 64 | 22 | 42 | |
Age (years) | ||||
<60 | 72 | 28 | 44 | P = 0.381 |
≥60 | 78 | 25 | 53 | |
Tumor position | ||||
head and neck | 111 | 40 | 71 | P = 0.761 |
body and tail | 39 | 13 | 26 | |
Differentiation | ||||
Well | 5 | 5 | 0 | P = 0.008* |
Moderately | 96 | 33 | 63 | |
Poorly | 49 | 15 | 34 | |
TNM stage | ||||
I + II | 89 | 32 | 57 | P = 0.847 |
III + IV | 61 | 21 | 40 | |
perineural invasion | ||||
Absent | 38 | 15 | 23 | P = 0.537 |
Present | 112 | 38 | 74 | |
Vascular invasion | ||||
Absent | 133 | 52 | 81 | P = 0.006* |
Present | 17 | 1 | 16 | |
LN metastasis | ||||
Absent | 90 | 32 | 58 | P = 0.994 |
Present | 60 | 21 | 39 |