Table 1.

Breast Cancer Characteristics – all patients and by two age groups

	All Patients	< 50	≥ 50	p
N	286	96	85
Age (year) a
Mean + SEM	49.3 ± 13.1	39.3 ± 7.8	60.6 ± 7.6
Range	4–81	4–49	49–81
Follow-up b (months)
Mean ± SEM	44.7 ± 47.5	50.2 ± 53.3	34.5 ± 39.9
Range	1.9–204	4–204	1.9–180
Breast Cancer Subtype
Breast Carcinoma c	61.7%	36.5%	49.4%	0.192
DCIS	1.7%	1.0%	2.4%
IDC	28.9%	52.1%	35.3%
ILC	3.1%	4.2%	5.9%
Metaplastic	2.8%	3.1%	5.9%
Sarcoma	1.1%	1.0%	1.2%
Other	0.7%	2.1%	0%
Stage at Diagnosis
Stage 0	1.9%	0%	3.7%	0.005
Stage I	13.0%	14.8%	11.1%
Stage II	46.3%	29.6%	63.0%
Stage III	31.5%	51.9%	11.1%
Stage IV	7.4%	3.7%	11.1%
Bilateral Breast Cancer	12.4%	16.1%	7.3%	0.229
Second Primary	27.3%	19.4%	37.5%	0.222
Developed Metastatic Disease	34.3%	38.5%	28.6%	0.445
Dead at last follow-up	46.7%	50%	41.7%	0.520

^a Age was not reported in 104 of cases; ^b Follow-up from breast cancer diagnosis; ^c Breast cancer subtype not specified