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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)