Table 2.

Variables not entered into proportional regression function and P-value

Variables	Univariate analysis	Multivariate analysis
Age	0.271 (≥65 vs <65 years)	0.355
Sex	0.138	0.558
N stage	0.825	0.932
Primary diameter	0.091 (≥5 vs <5 cm)	0.131
Primary location	0.766	0.705
Metastatic diameter	0.562 (≥5 vs <5 cm)	0.256
Metastasis laterality	0.490	0.278
Metastasis interval	0.353	0.534
ADX	0.209	0.448
Radiotherapy	0.964	0.880

Abbreviation: ADX, adrenalectomy.