IPC group		FPX group
	Patients with VTE	Patients without VTE	Patients with VTE	Patients without VTE
Characteristics	n = 17	n = 50	n = 6	n = 97	p-value
Age, years a	68 (8)	62 (12)	58 (8)	61 (12)	0.1
Gender: male/female, n	3/14	17/33	6/0	21/76	0.5
Weight, kg a	58 (14)	58 (13)	59 (14)	58 (13)	0.9
Body mass index a	24 (6)	23 (5)	24 (5)	24 (5)	0.9
Primary hip disease, n					0.8
Osteoarthritis	15	36	4	79
Rheumatoid arthritis	0	3	0	7
ANFH	2	6	2	11
PVNS	0	1	0	0
Preoperative plasma levels of:
Triglycerides, mg/dL a	92 (35)	108 (40)	99 (32)	98 (41)	0.7
Total cholesterol, mg/dL a	228 (44)	199 (31)	202 (26)	222 (36)	0.7
Operation length, min a	182 (62)	162 (36)	153 (39)	161 (37)	0.2
Blood loss, mL a	557 (193)	547 (217)	525 (137)	624 (265)	0.4

^a Values are mean (SD).

IPC: intermittent pneumatic compression; FPX: fondaparinux sodium; VTE: venous thromboembolism;

OA: osteoarthritis; RA: rheumatoid arthritis; ANFH: avascular necrosis of femoral head;

PVNS: pigmented villonodular synovitis.