Table 2

Univariate analysis of clinicopathological factors for the overall survival rate of 61 patients with pancreatic ductal adenocarcinoma

FactorsCategoryNo. of patients5-year overall survival rate (%)P
Age (years)1: ≤601571.1N.S.
2: >604625.2
Gender1: Male3434.9N.S.
2: Female2730.5
Location of tumor1: Head5037.9N.S.
2: Body/Tail110
T(pTNM)1: T1466.7<0.05b
2: T2755.6
3: T33132.2
4: T41918.4
Histological differentiation1: Well/Moderately5237.6<0.01
2: Poorly90
Lymph node metastasis1: Present3619.6N.S.
2: Absent2544.9
Akt2 expression1: Low intensity3543.6N.S.
2: High intensity2614.6
p-Akt expression1: Low intensity3350.6<0.05
2: High intensity2816.4
p-ERK 1/2 expression1: Low intensity2245.1N.S.
2: High intensity3928.4
Ki-67 LI1: Level 1 (<20%)1566.3<0.05
2: Level 2 (≥20%)4618.8
  • a N.S., nonsignificant; pTNM, pathological Tumor-Node-Metastasis; p-Akt, phosphorylated Akt; p-ERK 1/2, phosphorylated extracellular signal-regulated kinase 1 and 2; Ki-67 LI, Ki-67 labeling index.

  • b 1 and 2 versus 3 and 4.