Clinicopathological Characteristics of Breast Ductal Carcinoma In Situ: An Analysis of Chinese Population of 617 Patients

Table 1

Clinicopathological characteristics of Chinese DCIS patients (n = 617).

Characteristics	No. of cases	%
Detection method
Symptomatic	362	58.7
Screening	243	39.4
NA	12	1.9
Age (years)
Median	48
≤40	122	19.8
41–50	228	37.0
51–60	151	24.5
61–70	81	13.1
＞70	35	5.7
Tumor size (cm)
≤1.0	213	34.5
1.1–2.0	235	38.1
2.1–5.0	120	19.4
＞5.0	6	9.7
NA	43	7.0
Nuclear grade
Low-intermediate	463	75.0
High	135	21.9
NA	19	3.1
ER status
Positive	471	76.3
Negative	119	19.3
NA	27	4.4
PR status
Positive	426	69.0
Negative	168	27.2
NA	23	3.7

DCIS: ductal carcinoma in situ; NA: not available; ER: estrogen receptor; PR: progesterone receptor; IHC: immunohistochemistry.