Table 1.

One-year survival rate of 51 patients with pancreatic cancer according to clinicopathologic characteristics and tumor PD-L1 status

Variablen (%)PD-L1 positive, n (%)PD-L1 negative, n (%)P
Tumor status
    T11 (100)1 (ND)0 (—)ND
    T27 (42.9)3 (0)4 (75.0)0.093
    T340 (54.7)15 (40.8)25 (62.9)0.019
    T43 (54.7)1 (ND)2 (ND)ND
Nodal status
    N015 (61.9)6 (20.0)9 (87.5)0.019
    N136 (46.2)14 (40.8)22 (50.0)0.252
Metastatic status
    M045 (52.8)17 (33.0)28 (63.2)0.035
    M16 (33.3)3 (33.3)3 (33.3)0.486
Pathologic stage
    Ia, Ib250.0 (0)— (2)ND (ND)
    IIa13 (64.2)6 (20.0)7 (100)0.006
    IIb29 (50.6)11 (42.4)18 (55.6)0.426
    III1 (0)0 (—)1 (ND)ND
    IV6 (33.3)3 (33.3)3 (33.3)0.486
Total51 (50.4)20 (33.5)31 (60.3)0.016
  • Abbreviation: ND, not determined.