Table 2.

Baseline characteristics

	One stage N = 97	Two stage N = 120	P value
Age, mean (SD) years	59.1 (19.0)	64.8 (15.3)	0.016
Age > 75, %	26 (26.8)	39 (32.5)	0.474
Male sex, n (%)	19 (19.6)	56 (46.7)	<0.001
BMI (kg/m2), mean (SD)	26.3 (3.9)	27.3 (5.4)	0.131
ASA, n (%)
I -II	71 (73.2)	90 (75.0)	0.763