Table 2.

Characteristics of the 92 incident breast cancers by cancer type.

Variables	Invasive (n = 72)	DCIS (n = 19)
			Year of birth: mean (range)	1960 (1937–1981)	1959 (1946–1974)
Age at diagnosis: mean (range)	48.6 (31–69)	48.4(35–67)
Tumour size (cm): mean (range)	1.03 (0–3.0) (n = 69)	0.64 (0–2.2) (n = 14)
Node status
Negative	58 (86.6%)	6 (100%)
Positive	9 (13.4%)	0
Missing	5	13
Stage
1	49 (74.2%)	n/a
2 or higher	17 (25.8%)
Estrogen Receptor status
Positive	41 (59.4%)	6 (66.7%)
Negative	28 (40.6%)	3 (33.3%)
Missing	3	10
Chemotherapy
No	32 (47.8%)	14 (100%)
Yes	35 (52.2%)	0
Missing	5	5