Table 1.

Clinical features of RCC occurring in young (≤40 years) and older adults (>40 years)

	≤40 years	>40 years	P value
Number of Cases	44	794	NA*
Age (years)
Mean	37	63	NA
Range	24–40	41–88	NA
Gender
Male	22	492	0.07
Female	22	302
Nephrectomy
Partial	13	151	0.08
Radical	31	643
Follow-up (months)
Mean	44	45.9
Range	2–143	0.5–269

^*NA: not applicable