Table 1.

Characteristics of the study groups of patients.

	Group 1 (tumor < 4 cm), n = 55	Group 2 (tumor ≥ 4 cm),  n = 77	P value
Female/male	39 (71%)/16 (29%)	52 (68%)/25 (32%)	0.69
Left side/right side	29 (53%)/26 (47%)	40 (52%)/37 (48%)	0.93
Mean age	57 years (±11.4) (24–76)	52.9 years (±14.1) (19–81)	0.15
Average tumor size	3.13 cm (±0.57) (1.2–3.8)	5.63 cm (±2.2) (4–16)	<0.001