Table 3. ER status and triple negative status by age and ethnicity.

Factor	Age group	Category	Black patient no. (%)	White patient no. (%)	Significance
ER status	<60	Negative	27 (39)	13 (21)	0.03
		Positive	43 (61)	48 (79)
		Total	70 (100)	61 (100)
	60+	Negative	5 (22)	21 (28)	0.5
		Positive	18 (78)	54 (72)
		Total	23 (100)	75 (100)
Triple negative status	<60	Negative	48 (75)	49 (88)	0.09
		Positive	16 (25)	7 (12)
		Total	64 (100)	56 (100)
	60+	Negative	15 (88)	50 (83)	0.6
		Positive	2 (12)	10 (17)
		Total	17 (100)	60 (100)

ER=oestrogen receptor.