Table 2.

Multivariable logistic regression: predictive factors for false-negative vacuum-assisted biopsy results

Variable	OR (95 % CI)	p Value
Age	1.03 (1.00–1.07)	0.034
DCISa	3.95 (1.94–8.04)	<0.001
Multicentric disease before NST	2.74 (0.94–8.03)	0.066
Multicentric disease after NST	1.36 (0.19–9.75)	0.758

OR odds ratio, CI confidence interval, DCIS ductal carcinoma in situ, NST neoadjuvant systemic therapy

^aIn initial diagnostic biopsy