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

Table 6

The relationship between SAA1 expression level in pRCC and pathology features of pRCC patients (n = 60).

Characteristics	SAA1		Chi-squared test	value
	Low no. cases	High no. cases
All patients	(n = 31)	(n = 29)
Gender			0.012	0.913
Male	17	15
Female	15	14
Age (years)			0.63	0.427
≤60	15	17
>60	16	12
Tumor stage			8.21	0.004
≤T2	20	8
>T2	11	21
Lymph-node metastasis			4.312	0.038
Negative	19	10
Positive	12	19
Pathology grade			9.121	0.003
Low grade	17	5
High grade	14	24