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Table 1 Patients’ on-study characteristics (N = 249)

From: Breast magnetic resonance imaging (MRI) surveillance in breast cancer survivors

Ethnicity N %
Caucasian 110 44.2
African American 123 49.4
American Indian 3 1.2
Hispanic 3 1.2
Asian 5 2.0
Other 5 2.0
Age at diagnosis, years
 Median 46  
 Range 25–64  
Gender
 Female 249 100.0
Surgery
 Lumpectomy 137 55.0
 Mastectomy 109 43.4
Unknown 4 1.6
Chemotherapy
 Yes 135 54.2
 No 97 39.0
Unknown 17 6.8
Radiation
 Yes 157 63.1
 No 78 31.3
 Unknown 14 5.6
Hormone therapy
 Yes 152 61.0
 No 74 29.7
 Unknown 23 9.2
Stage
 0 50 20.1
 1 84 33.7
 2 69 27.7
 3 39 15.7
 Unknown 7 2.8
ER
 ER− 45 18.1
 ER+ 144 57.8
 Unknown 60 24.1
PR
 PR− 60 24.1
 PR+ 119 47.8
 Unknown 70 28.1
HER2
 HER2- 103 41.4
 HER2+ 27 10.8
 Unknown 119 47.8