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Table 1 Demographics and tumor characteristics

From: Role of baseline echocardiography prior to initiation of anthracycline-based chemotherapy in breast cancer patients

Variables Groups N Percentages
Stage 1 47 21.4
2 102 46.4
3 57 25.9
Not available 14 6.3
Grade 1 29 13.2
2 80 36.4
3 98 44.5
Not available 13 5.9
Laterality Right side 110 50
Left side 109 49.5
Bilateral 1 0.5
T 1 74 33.6
2 97 44.1
3 37 16.8
Not available 12 5.5
N 0 92 41.8
1 82 37.3
2 23 10.4
3 18 8.2
Not available 5 2.3
M 0 220 100
aER Negative 60 27.3
Positive 158 71.8
Not available 2 0.9
bPR Negative 78 35.5
Positive 140 63.6
Not available 2 0.9
cHER-2 Negative 118 53.6
Equivocal 67 30.5
Overexpressed 52 23.6
Not available 3 1.36
Previous hormone therapy (PHT) No PHT 131 59.6
Has had PHT 43 19.5
Not available 46 20.9
Menopausal status Premenopausal 90 40.9
Postmenopausal 109 49.5
Not available 21 9.6
  1. aER: Estrogen Receptor Status. bPR: Progesterone Receptor Status. cHER2: HER-2 Receptor Status.