Prognostic factors in stage IB gastric cancer

Table 2 Comparison of recurrence-free survival rate by patient’s characteristics

Characteristics	No. of patients	3-yr rate	5-yr rate	P value
Age (yr)				0.0637
< 70	69	97.0%	94.7%
≥ 70	34	89.7%	85.2%
Gender				0.1512
Female	38	100%	95.2%
Male	65	91.8%	89.8%
Tumor location				0.0565
L	29	91.7%	91.7%
M	47	97.7%	97.7%
U	27	88.8%	84.1%
Pathological tumor diameter (mm)				0.6106
≤ 20	11	90.9%	90.9%
> 20, ≤ 40	49	95.1%	91.8%
> 40	43	95.1%	91.8%
Histological type				0.4419
Differentiated	43	92.5%	92.5%
Undifferentiated	60	94.6%	91.0%
Number of lymph node metastases				0.9013
0	58	94.1%	94.1%
1	33	93.4%	89.1%
2	12	90.9%	90.9%
Lymphatic invasion				0.1645
Negative	73	95.4%	93.2%
Positive	30	89.3%	89.3%
Vascular invasion				0.7861
Negative	67	93.3%	93.3%
Positive	36	93.5%	89.0%