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Table 1 Correlation between NQO1 protein expression and the clinicopathological parameters of breast cancer

From: Clinical implications of high NQO1 expression in breast cancers

Variables No. of cases NQO1 strongly positive cases (%) χ 2 Pvalue
Age    0.751 0.386
 ≥50 94 61 (64.9%)
 <50 82 48 (58.5%)   
Menopausal status    1.159 0.282
 premenopausal 72 48 (66.7%)
 Postmenopausal 104 61 (58.7%)
Tumor size    3.033 0.082
 T1 97 51 (52.6%)
 T2 89 58 (65.2%)
Histological grade    11.298 0.004**
 Grade-1 82 40 (48.8%)
 Grade-2 51 37 (72.5%)
 Grade-3 43 32 (74.4%)
Clinical stage    7.050 0.008**
 0-II 104 56 (53.8%)
 III-IV 72 53 (73.6%)
LN metastasis    7.710 0.005**
 Absent 74 37 (50.0%)
 Presence 102 72 (70.6%)
ER    0.614 0.423
 Positive 101 60 (59.4%)
 Negative 75 49 (65.3%)
PR    1.426 0.232
 Positive 103 60 (58.3%)
 Negative 73 49 (67.1%)
Her2 status    5.534 0.019*
 Positive 96 67 (69.8%)
 Negative 80 42 (52.5%)   
  1. *p<0.05 and **p<0.01.