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Table 1 Patients clinical and pathological characteristics

From: Number of evaluated lymph nodes and positive lymph nodes, lymph node ratio, and log odds evaluation in early-stage pancreatic ductal adenocarcinoma: numerology or valid indicators of patient outcome?

Variable No. of patients (%)
Age, years, median (range) 67 (34–85)
Gender
 Male (%) 146 (51.8 %)
 Female (%) 136 (49.2 %)
Vascular resection 17 (6 %)
R0 resection 221 (78.4 %)
Average tumor size 3.14 (SD 1.58)
Differentiation
 Well 55 (19.5 %)
 Intermediate 86 (30.5 %)
 Poor 119 (42.2 %)
 Unknown 22 (7.8 %)
Microvascular invasion
 Present 106 (37.6 %)
 Absent 123 (43.6 %)
 Unknown 53 (18.8 %)
Perineural Invasion
 Present 214 (75.9 %)
 Absent 42 (14.9 %)
 Unknown 26 (9.2 %)
Lymph node status
 N0 144 (51.1 %)
 N1 138 (48.9 %)
ELN, mean 13.5 (SD 5.2)
ELN > 12 82 (29.1 %)
PLN, mean 1.6 (SD 0.9)
LNR ≥ 0.3 47 (34 %)
LODDS, mean −0.79 (SD 0.47)