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) | Â | Â | 0.545 |
 Median | 69 | 69.5 |  |
 Range | 40–90 | 40–90 | |
 Mean ± SD | 66.7 ± 11.7 | 67.8 ± 10.8 | |
Gender | Â | Â | 0.880 |
 Male | 76 (62.3 %) | 44 (61.1 %) |  |
 Female | 46 (37.7 %) | 28 (38.9 %) | |
Stage | Â | Â | <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 | Â | Â | 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 | Â | Â | 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 | Â | Â | <0.001 |
 No | 109 (89.3 %) | 44 (61.1 %) |  |
 Yes | 13 (10.7 %) | 28 (38.9 %) | |
Perineural invasion | Â | Â | <0.001 |
 No | 104 (85.2 %) | 43 (69.7 %) |  |
 Yes | 18 (14.8 %) | 29 (40.3 %) |