Table 3.

Comparison of Percent Reduction of Fibroglandular Tissue Volume and Percent Breast Density

Group	N	Mean	Standard Deviation	Median	25th Pctl	75th Pctl	Nominal p-value for independent sample t-test1
Outcome variable: Percentage reduction in FV from baseline = (FV at Week-12 - FV at Baseline) × 100% / (FV at Baseline)
CCR/pCR	16	−7.08	14.97	−3.86	−18.43	4.14	0.0740
Non-(CCR/pCR)	28	−15.67	14.95	−13.82	−24.84	−4.26
ER+ cancer	25	−14.83	13.32	−14.07	−23.63	−5.72	0.2634
ER- cancer	19	−9.55	17.63	−4.07	−22.27	0.60
Her-2+ cancer	16	−9.68	17.13	−4.25	−25.45	0.50	0.2794
Her-2 cancer	25	−14.89	13.19	−14.07	−23.12	−6.45
Outcome variable: Percentage reduction in PD% from baseline = (PD% at Week-12 - PD% at Baseline) × 100% / (PD% at Baseline)
CCR/pCR	16	−8.44	22.68	−10.27	−17.87	7.55	0.4448
Non-(CCR/pCR)	28	−13.03	16.55	−18.76	−25.83	−0.63
ER+ cancer	25	−13.12	16.98	−10.62	−23.86	−1.03	0.2634
ER- cancer	19	−9.04	21.37	−16.32	−19.04	7.71
Her-2+ cancer	16	−10.75	23.91	−10.03	−24.26	5.15	0.8764
Her-2 cancer	25	−11.72	16.00	−16.32	−23.86	−1.03

Descriptive statistics and p-values for independent sample t-tests tests are presented.

¹There were no statistically significance differences between groups, adjusted for multiple comparisons.