Identification of Prognostic Markers of DNA Damage and Oxidative Stress in Diagnosing Papillary Renal Cell Carcinoma Based on High-Throughput Bioinformatics Screening

Table 3

The relationship between BDKRB1 expression level in pRCC and pathology features of pRCC patients (n = 60).

Characteristics	BDKRB1		Chi-squared test	value
	Low no. cases	High no. cases
All patients	(n = 23)	(n = 37)
Gender			0.035	0.852
Male	13	20
Female	10	17
Age (years)			0.012	0.914
≤60	9	15
>60	14	22
Tumor stage			7.274	0.007
≤T2	15	11
>T2	8	26
Lymph-node metastasis			5.711	0.017
Negative	16	14
Positive	7	23
Pathology grade			6.332	0.012
Low grade	13	9
High grade	10	28