Table 2. Detection by MAM/MRI by carcinoma type and breast density.

Microinvasive carcinoma was included in the invasive carcinoma category. Percentages are reported as column percentages. Category B (scattered fibroglandular densities) was considered non-dense, and Categories C (heterogeneous dense) and D (extremely dense) were grouped as dense. P <0.05 was considered significant.

MAM: mammography; OR: odds ratio

	Detected by MAM (N,%)	Not detected by MAM (N,%)	OR (95% CI)	Not detected by MAM  + detected by MRI (N,%)	Not detected by MAM + not detected by MRI (N,%)	OR (95% CI)
Invasive carcinoma	-	10 (58.8)	-	8 (66.7)	2 (40.0)	3 (0.35, 25.87)
In situ carcinoma	-	7 (41.2)		4 (33.3)	3 (60.0)
Dense breast tissue	10 (66.7)	10 (58.8)	1.4 (0.33, 5.93)	7 (58.3)	3 (60.0)	0.93 (0.11, 7.82)
Non-dense breast tissue	5 (33.3)	7 (41.2)		5 (41.7)	2 (40.0)