Table 3 Correlation between the clinicopathologic characteristics and expression of MMP9 protein in NPC
From: Increased expression of MMP9 is correlated with poor prognosis of nasopharyngeal carcinoma
| Â | Â | MMP9 (%) | Â | |
|---|---|---|---|---|
Characteristics | n | High expression | Low expression | P |
Gender | Â | Â | Â | Â |
Male | 116 | 94(81.0) | 22 (19.0) | Â |
Female | 48 | 33(43.6) | 15 (56.4) | 0.102 |
Age( y) | Â | Â | Â | Â |
≥50 | 81 | 61 (75.3) | 20 (24.7) |  |
<50 | 83 | 66 (47.7) | 17(52.3) | 0.577 |
Smoking | Â | Â | Â | Â |
Yes | 39 | 31 (79.5) | 8 (20.5) | Â |
No | 125 | 96 (76.8) | 29 (23.2) | 0.828 |
T classification | Â | Â | Â | Â |
T1-T2 | 116 | 85 (73.3) | 31(26.7) | Â |
T3-T4 | 48 | 42 (87.5) | 6(12.5) | 0.064 |
N classification | Â | Â | Â | Â |
N0-N1 | 74 | 49 (66.2) | 25 (33.8) | Â |
N2-N3 | 90 | 78 (86.7) | 12 (13.3) | 0.002 |
Distant metastasis | Â | Â | Â | Â |
Yes | 8 | 7 (87.5) | 1 (12.5) | Â |
No | 156 | 120 (76.9) | 36 (23.1) | 0.685 |
Clinical stage | Â | Â | Â | Â |
I~II | 55 | 30 (54.5) | 25 (45.5) | Â |
III~IV | 109 | 97 (89) | 12(11) | 0.000 |