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Table 4 Association of Lewisy/b expression with clinicopathological characteristics (chi-square test)

From: High expression of Lewisy/bantigens is associated with decreased survival in lymph node negative breast carcinomas

Prognostic factors Cut-off points Intensity of staining (p-value) Percentage of positive cells (p-value)
Age (years; median 56) <40, 41–50, 51–60, >60 0.011 0.014
Menopausal status Pre- or post-menopausal 0.547 0.917
Histological grade Well, moderate, poor differentiated 0.009 <0.001
Lymph node (LN) stage LN -/ LN+ 0.368 0.419
Tumour size (mm) <10, 11–20, 21–30, 31–40, 41–50 0.594 0.884
Nottingham Prognostic Index Good, moderate, or poor 0.151 0.016
Tumour type 1, 2, 3 or 4 0.093 0.007
Vascular invasion None or definite 0.293 0.316
Distant metastases Absent or present 0.515 0.532
Any recurrence Absent or present 0.533 0.743
Local recurrence Absent or present 0.775 0.908
Regional recurrence Absent or present 0.314 0.278