Table 2.

Accuracy of breast cancer risk perceptions before and after interacting with the RealRisks decision aid among focus group participants (N=34), New York City (2013).

Breast cancer risk perception		Before RealRisks	After RealRisks	P value
Perceived 5-year breast cancer risk (%), mean (SD)		10.4 (22.4)	5.3 (12.1)	.008a
Perceived lifetime breast cancer risk (%), mean (SD)		13.1 (26.1)	9.6 (13.7)	.20a
Accurate perceived breast cancer risk b , n (%)		15 (51.7)	19 (70.4)	.10c
	High numeracy	10 (55.6)	12 (70.6)
	Low numeracy	5 (45.5)	7 (70.0)

^a P value based upon paired t test.

^bAccurate perceived breast cancer risk defined as within ±5% of estimated lifetime breast cancer risk according to the BCRAT.

^c P value based upon McNemar’s test.