Efficacy of digital breast tomosynthesis combined with magnetic resonance imaging in the diagnosis of early breast cancer

Table 4 Comparison of general data between the breast-conserving group and the modified radical treatment group

Group		Breast-conserving group	Modified radical cure group	t/χ2	P value
n		69	41
Age (yr)		37.1 ± 7.1	39.2 ± 6.8	-1.523	0.131
BMI (kg/m2)		23.9 ± 1.9	23.2 ± 1.7	1.941	0.055
Affected side distribution, n (%)	Left side	34 (49.28)	25 (60.98)	1.416	0.243
	Right side	35 (50.72)	16 (39.02)
Lesion diameter (cm)		2.18 ± 0.68	2.34 ± 0.70	-1.18	0.24
Pathology type	Invasive ductal carcinoma	43 (62.32)	23 (56.1)	2.171	0.538
	Ductal carcinoma in situ	15 (21.74)	7 (17.07)
	Lobular carcinoma in situ	6 (8.70)	7 (17.07)
	Other types	5 (7.25)	4 (9.76)

BMI: Body mass index.