Table 4. Statistical test results of platelet-derived growth factor (PDGF) expression for ductal and lobular types.

Invasive breast cancer type	PDGF expression		p
	Non-recurrence	Recurrence
Ductal	3.95±2.70	14.95±5.36	0.000 *
	3.20 (0.9-10.7)	15.60 (6.4-24.2)
Lobular	1.62±1.58	6.96±3.01	0.002 **
	1.35 (0.0-4.4)	6.40 (4.0-11.3)
p	0.030 *	0.001 **

Description: data in Mean SD, Median, (Minimum-Maximum)±.

^*Mann-Whitney test.

^**Independent t-test.