Table 3

Univariate survival analysis (Kaplan-Meier): survival times of all patients with breast cancer according to clinicopathological factors and cytoplasmic or total CD24 expression

Overall survivalDisease-free survival
CharacteristicNo. of casesNo. of events5-year survival rate (±SE)PNo. of casesNo. of events5-year nonprogression rate (±SE)P
Total CD24 expression0.2860.004
 Negative31387.1 ± 6.931389.0 ± 6.0
 Positive1703185.5 ± 3.11706560.4 ± 4.3
Cytoplasmic CD240.0310.0008
 Negative48391.9 ± 4.548788.3 ± 4.9
 Positive1533183.8 ± 3.41536157.0 ± 4.7
Age0.8340.111
 <60 years1051788.5 ± 3.51054157.2 ± 5.7
 ≥60 years961782.9 ± 4.4962772.5 ± 5.1
Histology0.5030.348
 Ductal1632985.1 ± 3.11635864.2 ± 4.3
 Lobular21293.8 ± 6.121473.3 ± 11.8
pT stage0.00040.0001
 pT11271094.4 ± 2.31273275.9 ± 4.3
 pT2581872.3 ± 7583138.1 ± 7.9
 pT3/4161065.6 ± 12.616565.6 ± 12.6
Nodal status0.0010.0004
 pN094594.6 ± 2.7941978.8 ± 4.8
 pN1+1042878.0 ± 4.51044752.7 ± 5.7
UICC stage0.00420.0017
 I96694.7 ± 2.6962078.3 ± 4.8
 II741881.2 ± 5.2743550.4 ± 6.9
 III311065.4 ± 9.7311355.7 ± 9.9
Histological grade0.0260.0001
 G147590.0 ± 5.547880.1 ± 7.0
 G21041589.2 ± 3.41043469.6 ± 5.1
 G3501474.7 ± 6.7502636.6 ± 8.9
Estrogen receptor0.1500.072
 Negative571480.4 ± 5.7572554.6 ± 7.6
 Positive1241787.1 ± 3.51243769.3 ± 4.8
c-erbB2 expression0.5070.264
 0, 1+1212185.6 ± 3.61213969.5 ± 5
 2+, 3+47884.8 ± 5.8471854.9 ± 8.1