Table 1.

Breast cancer study subjects and hormone status.

Subject (patient no. or tissues)	Age range (years)	ER	PR	HER2 (IHC)	In situ densities (range)
1–3	65–73	-	-	-	<0.2–1.2
19–28	54–60
29–35	36–60
4–7	55–60	+	+	1+	1–1.5
8–10	60–64
11–18	70–82	+	+	-	0.5–1
36–50	56–65
Benign tissues	35–60	Not performed	Not performed	Not performed	10

The demographics of patients and their hormonal status are given. The patients are grouped based on hormonal status and are coded with assigned numbers. All patients were diagnosed with infiltrating ductal carcinomas. ER, estrogen receptor; PR, progesterone receptor; HER2, c-erbB-2; IHC, immunohistochemistry.