Table 1 Correlation between NQO1 expression and clinicopathological features in 177 patients with SCC
Clinical features | NQO1 positive cases (%) | χ2 | P-value | |
|---|---|---|---|---|
−/+ | ++/+++ | |||
Age | ||||
 ≤45 | 32 (47.76%) | 35 (52.24%) | 0.286 | 0.594 |
 >45 | 48 (43.64%) | 62 (56.36%) | ||
Stage | Â | Â | Â | Â |
 I-IIa | 57 (56.44%) | 44 (43.56%) | 11.993 | 0.001** |
 IIb-IV | 23 (30.26%) | 53 (69.74%) | ||
Differentiation | Â | Â | Â | Â |
 Well | 36 (56.25%) | 28 (43.75%) |  |  |
 Moderate | 28 (41.79%) | 39 (58.21%) | 5.485 | 0.022* |
 Poorly | 16 (34.78%) | 30 (65.22%) |  |  |
Lymph node metastasis | ||||
 Negative | 53 (53.54%) | 46 (46.46%) | 6.305 | 0.012* |
 Positive | 27 (34.62%) | 51 (65.38%) | ||