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Table 1 Conventional prognostic factors for patients with ampullary carcinoma undergoing curative pancreaticoduodenectomy

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

Variables No. of patients n (%) Survival P value
5-year (%) Median (months) Mean ± SD (months)
Age (years)      0.250
 <60 57 (29.4) 49.0 57.7 88.5 ± 11.0  
 ≥60 137 (70.4) 40.7 41.8 78.9 ± 7.2
Gender      0.121
 Male 120 (61.9) 39.3 40.0 76.3 ± 8.1  
 Female 74 (38.1) 48.2 57.7 93.8 ± 9.7
Stage      <0.001
 I 64 (33) 60.9 124 ± 11.0  
 IIa 55 (28.4) 47.7 57.7 85.6 ± 10.9
 IIb 55 (28.4) 21.0 32.8 52.1 ± 9.4
 III 20 (10.3) 21.1 21.0 50.2 ± 13.9
Tumor size (cm)      0.282
 <2 112 (57.7) 46.0 54.4 88.3 ± 8.1  
 ≥2 82 (42.3) 37.8 40.0 74.3 ± 9.5
Tumor differentiation      0.005
 Well 22 (11.8) 42.3 45.1 76.7 ± 18.5
 Moderate 137 (73.2) 47.2 52.0 88.6 ± 7.1
 Poorly 28 (15) 25.4 23.0 31.7 ± 5.5
Perineural invasion      0.045
 No 147 (75.8) 48.5 54.4 89.8 ± 7.0  
 Yes 47 (24.2) 20.1 34.1 58.3 ± 11.8
Lymphovascular invasion      0.117
 No 153 (78.9) 46.0 46.3 89.3 ± 7.0  
 Yes 41 (21.1) 25.5 41.8 56.7 ± 10.6
Nodal status      <0.001
 Negative 122 (62.9) 53.9 79.5 98.5 ± 7.9  
 Positive 72 (37.1) 20.3 28.5 53.4 ± 8.6
  1. SD standard deviation