Table 3. Prognostic model comprised of risk categories based on the status of predictors.

	Number of patients	Status of predictors
category		≥4+ nodes	Cathepsin-D	Ki-67≥20%	Risk points	Risk group	HR for DFS	HR for OS
1	14	-	-	-	0	Low risk	1.0	1.0
2	6	+	-	-	1	Low risk
3	57	-	+	-	1	Low risk
4	23	-	-	+	1	Low risk
5	15	+	+	-	2	High risk	4.029	4.866
6	2	+	-	+	2	High risk	(2.379-6.824)	(2.311-10.247)
7	50	-	+	+	2	High risk
8	18	+	+	+	3	High risk