Table 1.

Clinical and pathologic features of study cohort

Characteristics/variables	ADX (n=10)	Nonsurgical (n=12)	P-value
Age (years), mean ± SD	56±14	62±12	0.273
Sex, n (%)			0.583
Male	7 (70)	9 (75)
ECOG PS, n (%)			0.108
0	3 (30)	2 (16.7)
1	6 (60)	3 (25)
2	1 (10)	6 (50)
3	0	1 (8.3)
Histology, n (%)			0.86
Squamous cell carcinoma	2 (20)	1 (8.3)
Adenocarcinoma	6 (60)	6 (61)
Adenosquamous carcinoma	1 (10)	1 (8.3)
Large cell carcinoma	0	1 (8.3)
Unclassified carcinoma	1 (10)	3 (25)
Mediastinal N stage, n (%)			0.078
N0	1 (10)	0
N1	2 (20)	0
N2	7 (70)	12 (100)
Primary location, n (%)			0.667
Central	5 (50)	4 (33.3)
Primary diameter (cm), mean ± SD	3.5±2.4	4.2±1.7	0.462
Metastasis laterality, n (%)			0.204
Ipsilateral	8 (80)	6 (50)
Metastasis interval, n (%)			0.652
Synchronous (<6 months)	6 (60)	9 (75)
Metastatic diameter (cm), mean ± SD	3.3±1.6	4.1±1.4	0.247
Median survival (months), range	12 (9.1–14.9)	9 (6.9–11.1)	0.209

Abbreviations: ADX, adrenalectomy; ECOG PS, Eastern Cooperative Oncology Group performance status; SD, standard deviation.