Table I.

Characteristics of patients

Parameter	Group 1	Group 2	Overall	Value of p
Number of patients	43	49	92
Females	15	28	43
Males	28	21	49
Mean age [years]	55.8	76.3	66.9	< 0.05
BMI [kg/m2]	26.41	25.47	25.91
ASA grade 1	3	0	3
ASA grade 2	32	25	57
ASA grade 3	8	20	28
ASA grade 4	0	4	4
Mean ASA grade	2.11	2.57	2.34	< 0.05

BMI – body mass index, ASA – The American Society of Anesthesiologists (ASA) Physical Status classification system.