Table 3.

Demographic and clinical characteristics of patients with ≥6 months of follow-up imaging.

Characteristic	Total (n=163)	<1.0 cm growth (n=135)	≥1.0 cm growth (n=26)	P value
Male sex – no. (%)	97 (60)	79 (59)	16 (62)	0.77
Age – yr (range)	62 (27-86)	63 (28-86)	57 (27-86)	0.09
Mode of discovery – no. (%)
Incidental	140 (86)	116 (86)	23 (89)	0.67
Cancer staging	18 (11)	15 (11)	3 (11)
Mass effect symptoms	5 (3)	4 (3)	0 (0)
Hemorrhage – no. (%)	5 (3)	1 (1)	3 (12)	0.007
Initial size (range) – cm	2.4 (0.5-18.0)	2.2 (0.5-13.3)	3.6 (0.8-18.0)	0.01
Adrenalectomy – no. (%)	14 (9)	5 (4)	9 (35)	<.0001
Final size (range) – cm	2.6 (0.5-19.3)	2.3 (0.5-14.0)	5.9 (2.3-19.3)	<.0001
Overall change in size (range) – mm	0 (−10, 115)	0 (−10, 95)	20 (10-115)	<.0001
Rate of growth (range) – mm/yr	0 (−6, 14)	0 (−5.6, 14)	3.0 (1-11.0)	<.0001