Table 1.

Demographic characteristics and preoperative data

Variable (mean ± SD)	DAA	PLA	P value
Age, years	61.4 ± 12.8	62.4 ± 8.3	0.564
Males/females	27/38	28/37	0.859
BMI, kg/m2	24.7 ± 1.9	25.1 ± 1.8	0.180
Hb, g/L	131.7 ± 9.9	133.4 ± 6.3	0.228
HHS	45.8 ± 4.0	46.8 ± 6.5	0.272
VAS	5.9 ± 1.3	6.2 ± 1.1	0.085