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. 2009 Nov 2;27(34):5700–5706. doi: 10.1200/JCO.2009.23.2025

Table 1.

MDACC Patient Demographic and Clinical Characteristics by HER2 Status

Characteristic HER2 Negative (n = 867)
HER2 Positive (n = 98)
P
No. % No. %
Age, years
    Minimal 26 28
    Median 57 51.5
    Maximal 87 78 < .0001
Ethnicity
    Black 61 7.0 9 9.2
    Hispanic 78 9.0 10 10.2
    Other 35 4.0 4 4.1
    White 693 79.9 75 76.5 .843
Menopausal status
    Premenopausal 201 23.2 43 43.9
    Postmenopausal 665 76.8 55 56.1 < .0001
Histology
    Other 206 23.8 8 8.2
    Ductal 661 76.2 90 91.8 .0004
T stage
    Ia 280 32.3 43 43.9
    Ib 587 67.7 55 56.1 .021
Hormone receptor status
    Negative 125 14.4 38 38.8
    Positive 742 85.6 60 61.2 < .0001
Nuclear grade
    1 116 17.3 1 1.5
    2 386 57.6 17 25.4
    3 168 25.1 49 73.1 < .0001

Abbreviations: MDACC, M. D. Anderson Cancer Center; HER2, human epidermal growth factor receptor 2.

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