Table 3.

Association between mammographic characteristics and histo-pathologcal grade according to the E.P.W.G. classification.

Mammographic characteristics	EPWG classification			P-value
	Grade 1	Grade 2	Grade3
Microcalcifications (n = 115)
Yes	10(53%)	38(73%)	39(89%)	0.008
No	9(47%)	14(27%)	5(11%)
Anormality other than microcalcifications (n = 115)
Yes	10(53%)	18(35%)	10(23%)	0.065
No	9(47%)	34(65%)	34(77%)
Linear microcalcifications (n = 87)
Yes	2(20%)	5(13%)	26(67%)	<0.001
No	8(80%)	33(87%)	13(33%)
Coarse granular microcalcifications (n = 87)
Yes	8(80%)	32(84%)	32(82%)
No	2(20%)	6(16%)	7(18%)	0.940
Fine granular microcalcifications (n = 87)
Yes	5(50%)	15(39%)	7(18%)
No	5(50%)	23(61%)	32(82%)	0.048
Number of microcalcifications (n = 87)
10	2(20%)	1(3%)	1(3%)
>10	8(80%)	37(97%)	38(97%)	0.143
Distribution of microcalcifications (n = 87)
Cluster	8(80%)	23(61%)	19(49%)
Segment	2(20%)	15(39%)	20(51%)	0.163