Table 4

 Relationship between clinicopathological features and activity of neutrophil gelatinase-associated lipocalin/matrix metalloproteinase 9 complex in oesophageal squamous carcinoma by zymography

ParametersComplex activity level(T/N ratio, mean (SD))p Value
T/N ratio, ratio of tumour/corresponding normal tissue.
Mean age, years (range)
    <585.316 (6.735) (n = 22)0.222
    >588.367 (9.739) (n = 26)
Gender
    Male6.563 (8.076) (n = 39)0.500
    Female8.724 (10.734) (n = 9)
Primary tumour
    T1/T23.007 (2.273) (n = 9)0.006
    T3/T47.883 (9.199) (n = 39)
Regional lymph node
    N06.222 (7.581) (n = 21)0.599
    N17.549 (9.332) (n = 27)
Distant metastasis
    M07.112 (8.683) (n = 46)0.582
    M13.665 (4.320) (n = 2)
Stage
    I/IIA/IIB6.290 (7.949) (n = 19)0.661
    III/IV7.412 (9.029) (n = 29)
Histopathology
    Well differentiated (G1)9.531 (8.825) (n = 13)p1/2 = 0.181
    Moderately differentiated (G2)5.852 (7.840) (n = 30)p2/3 = 0.780
    Poorly differentiated (G3)7.0040 (6.193) (n = 5)p1/3 = 0.630