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Table 3 Demographics of patients categorized with lymph node status

From: The role of lymph nodes in predicting the prognosis of ampullary carcinoma after curative resection

Variables Negative nodal status Positive nodal status P value
n = 122 n = 72
Age (years)    0.545
 Median 69 69.5  
 Range 40–90 40–90
 Mean ± SD 66.7 ± 11.7 67.8 ± 10.8
Gender    0.880
 Male 76 (62.3 %) 44 (61.1 %)  
 Female 46 (37.7 %) 28 (38.9 %)
Stage    <0.001
 I 64 (52.5 %) 0  
 IIa 55 (45.1 %) 0
 IIb 0 55 (76.4 %)
 III 3 (2.4 %) 17 (23.6 %)
Tumor size    0.007
 Median 1.9 2.4  
 Range 0.7–7.0 0.8–9.0
 Mean ± SD 2.2 ± 1.2 2.7 ± 1.5
Tumor differentiation    0.002
 Well 20 (17.1 %) 2 (2.9 %)  
 Moderate 85 (72.6 %) 52 (74.3 %)
 Poorly 12 (10.3 %) 16 (22.9 %)
Lymphovascular invasion    <0.001
 No 109 (89.3 %) 44 (61.1 %)  
 Yes 13 (10.7 %) 28 (38.9 %)
Perineural invasion    <0.001
 No 104 (85.2 %) 43 (69.7 %)  
 Yes 18 (14.8 %) 29 (40.3 %)
  1. SD standard deviation