TABLE 1.

Group Characteristics

	Intervention n = 40	Usual Care n = 32
Demographics
Age	64 ± 15	68 ± 15
Height, cm	166 ± 10	167 ± 10
Weight, kg	86 ± 27	88 ± 20
BMI, kg/m2	30 ± 8	31 ± 7
ASA 2	17 (42.5)	17 (53.1)
ASA 3	22 (55)	15 (46.9)
ASA 4	1 (2.5)	0
Sex (male/female)	19/21	17/15
Surgery
Days before surgery*	8 (6–13)	10 (5–15)
Estimated blood loss during surgery*	360 (200–700)	300 (100–512)

^*Data are median (IQR).

BMI indicates body mass index; ASA, physical status classification system; IQR, interquartile range.