Table 2.

Her2 immunohistochemistry

HER2 expression level
Novocastra CB11DAKO HercepTest
Analyzable (n)Weak (%)Strong (%)PAnalyzable (n)Weak (%)Strong (%)P
All tumors2,48920.91.62,40715.71.5
Tumor stage
    pT21,50820.10.90.00151,44814.40.70.0001
    pT3a50522.81.849615.72.2
    pT3b31022.34.230418.83.6
    pT43813.25.33831.60.0
Gleason grade
    ≤3+399517.60.9<0.000196611.30.2<0.0001
    3+41,05822.60.71,02117.11.4
    4+326425.45.725423.65.5
    ≥4+44524.413.34626.14.3
Nodal stage
    pN01,26818.92.20.0751,26815.41.60.0395
    pN+8226.84.98218.36.1
PSA
    <436420.91.40.946134919.21.10.1571
    4-101,24120.91.31,19413.71.5
    10-2053021.31.551816.21.0
    >2019620.42.618916.42.6
Resection margin
    Positive50322.31.80.570548917.46.50.1588
    Negative1,85720.51.51,7953.91.6
Ki67 LI
    Low (<10%)2,20220.01.50.00712,12914.51.30.0004
    Moderate (10-20%)19627.63.118624.72.2
    High (>20%)4035.00.03928.25.1