Table II.

Demographic and Medical Characteristics by Treatment Group

	Group OS (n = 85)	Group OD (n = 79)
Sex (female) (%)	46 (54)	41 (52)
Age at THR (years)	68.7 ± 9.5	68.4 ± 11.1
Body weight (kg)	81.8 ± 16.5	79.1 ± 14.3
Height (cm)	166 ± 8	165 ± 9
Incision length (cm)*	10.3 (9–11)	10.3 (9–11)
Operative time (min)	59 ± 10	60 ± 9
Preoperative EPO (n, %)	10 (11)	9 (11)
Preoperative Hb (g/dl)	14.2 ± 1.1	14.1 ± 1.2
Mean epoetin-alpha dose (UI)	116,000	115,000
Fondaparinux/rivaroxaban (n)	37/48	28/51

Presented as frequency (percentage) or mean ± standard deviation, except * as median (interquartile range).