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Table 1 Characteristics of thirty-one breast cancer cases for which multigene tests were performed on both core needle biopsy samples and surgical specimens

From: Efficacy of an RNA-based multigene assay with core needle biopsy samples for risk evaluation in hormone-positive early breast cancer

Variables n = 31
Mean age (years, ±SD) 58.7 ± 8.3
Mean body mass index (kg/m2, ±SD) 24.6 ± 3.3
Mean clinical tumor size (cm, ±SD) 1.4 ± 0.7
Mean pathological tumor size (cm, ±SD) 1.5 ± 0.5
Cases of multifocality (n, %) 7 (22.6)
Containing microcalcification (n, %) 6 (19.4)
Pathologic tumor stage (n, %)
 IA 23 (74.2)
 IB 1 (3.2)
 IIA 7 (22.6)
Mean follow-up period (months, ±SD) 40.2 ± 28.6
Locoregional recurrence (n, %) 2 (6.5)