Table 2.

Correlation analysis between Nrf2/HO-1 protein expression and clinicopathological parameters

Clinical indexes	n	Nrf2 positive (%)	P-value	n	HO-1 positive (%)	P-value
Age (years)
<53	87	69 (79.3)	0.724	80	70 (87.5)	0.470
≥53	65	50 (76.9)		53	44 (83.0)
Gender
Male	103	82 (79.6)	0.566	91	78 (85.7)	1.000
Female	49	37 (75.5)		42	36 (85.7)
ISUP grade
1	13	8 (61.5)	0.298	13	9 (69.2)	0.303
2	54	44 (81.5)		49	43 (87.8)
3	65	53 (81.5)		54	48 (88.9)
4	20	14 (70.0)		17	14 (82.4)
Tumor size (cm)
<9	137	104 (75.9)	0.042*	121	102 (84.3)	0.214
≥9	15	15 (100)		12	12 (100)
T staging
T1–T2	134	108 (80.6)	0.060	119	101 (84.9)	0.684
T3–T4	18	11 (61.1)		14	13 (92.9)
Sarcomatoid differentiation
No	132	105 (79.5)	0.335	116	100 (86.2)	0.958
Yes	20	14 (70.0)		17	14 (82.4)
Lymph node metastasis
No	149	118 (79.2)	0.230	130	112 (86.2)	0.905
Yes	3	1 (33.3)		3	2 (66.7)

Note:

^*P<0.05.

Abbreviation: ISUP, International Society of Urological Pathology.