Table 3. Correlations between PGRMC1 abundance and clinical characteristics of RCC.

Factors	No. of patients (%)	Staining degree (average scores)	P-value
Gender
Male	81(60.0%)	++ (6.95±2.97)
Female	54(40.0%)	++ (5.70±2.99)	0.0842
Age
<60	69(51.1%)	++ (5.78±3.05)
≥60	66(48.9%)	++ (5.72±3.01)	0.9312
TNM stage
I-II	95(70.4%)	++ (5.74±3.01)
III-IV	40(29.6%)	+++(8.31±2.94)	0.0189

−: Negative; +: weak immunoreactivity; ++: moderate immunoreactivity

+++: strong immunoreactivity.