Table 2

Prevalence of CD44+/CD24−/low tumor cells in breast tumors stratified according to clinical characteristics

CD44+/CD24−/low tumor cells
Characteristics≤10%, n (%)>10%, n (%)P
Histology95270.97
    Invasive ductal75 (78.9)21 (77.8)
    Invasive lobular11 (11.6)3 (11.1)
    Unspecified9 (9.5)3 (11.1)
Grading*93250.49
    G13 (3.2)2 (8.0)
    G257 (61.3)16 (64.0)
    G333 (35.5)7 (28.0)
Tumor size95270.24
    T118 (18.9)7 (25.9)
    T257 (60.0)12 (44.4)
    T313 (13.7)3 (11.1)
    T47 (7.4)5 (18.5)
Nodal status95270.71
    N034 (35.8)11 (40.7)
    N154 (56.8)13 (48.2)
    N2-37 (7.4)3 (11.1)
Metastasis95270.07
    M093 (97.9)24 (88.9)
    M12 (2.1)3 (11.1)
Stage95270.08
    I14 (14.7)7 (25.9)
    II57 (60.0)12 (44.4)
    III22 (23.2)5 (18.5)
    IV2 (2.1)3 (11.1)
Menopausal status*59171.00
    Premenopausal20 (33.9)6 (35.3)
    Postmenopausal39 (66.1)11 (64.7)
Estrogen receptor*90250.36
    ER+55 (61.1)18 (72)
    ER−35 (38.9)7 (28)
Progesterone receptor*89241.0
    PR+52 (58.4)14 (58.3)
    PR−37 (41.6)10 (41.7)
HER-2/neu*88250.06
    c-erb-B2+23 (26.1)2 (8.0)
    c-erb-B2−65 (73.9)23 (92.0)
Recurrence95271.0
    Yes52 (54.7)15 (55.6)
    No43 (45.3)12 (44.4)
  • * Number differences reflect missing data.