Venous thromboembolism after total joint arthroplasty: results from a Japanese multicenter cohort study

Table 9 Baseline and other characteristics of the propensity score-matched patients receiving fondaparinux or enoxaparin (TKA)

	Fondaparinux	Enoxaparin	P value
	n = 204	n = 204	P value
Gender, male/female	30/174	26/178	0.565
Age, years
Mean ± SD	73.6 ± 7.6	73.2 ± 7.7	0.734
Range	34-87	45-89
Body mass index, kg/m²
Mean ± SD	25.4 ± 4.0	25.5 ± 4.0	0.729
History of venous thrombosis, n (%)	3 (1.5%)	2 (1.0%)	0.500
Comorbidities, n (%)
Hypertension	113 (55.4%)	98 (48.0%)	0.137
Ischemic heart disease	9 (4.4%)	11 (5.4%)	0.647
Diabetes	29 (14.2%)	27 (13.2%)	0.774
Cerebrovascular disease	11 (5.4%)	7 (3.4%)	0.335
Operation time, minutes
Mean ± SD	131.4 ± 41.7	130.2 ± 46.7	0.786
Primary diseases, n (%)
Rheumatoid arthritis	41 (20.1%)	27 (13.2%)	0.063
Osteoarthritis	161 (78.9%)	176 (86.3%)	0.050
Others	2 (1.0%)	1 (0.5%)	0.500
General anesthesia	175 (85.8%)	150 (73.5%)	0.002
Use of elastic stocking, n (%)	195 (95.6%)	184 (90.2%)	0.034
Use of foot pump, n (%)	184 (90.2%)	156 (76.5%)	<0.0001
Use of tourniquet, n (%)	187 (91.7%)	193 (94.6%)	0.240
Use of cement, n (%)	198 (97.1%)	198 (97.1%)	1.000
e-GFR, mL/min per 1.73 m²
Mean ± SD	74.7 ± 22.1	74.2 ± 19.4	0.961
Range	24.1-158.7	30.9-147.5
Serum albumin, g/dL
Mean ± SD	4.0 ± 0.5	4.1 ± 0.4	0.041
Range	2.3-5.0	2.8-4.9
Platelet count, 10⁴/μL
Mean ± SD	24.8 ± 6.9	24.9 ± 7.2	0.913

Kruskal-Wallis rank test were performed on the means of continuous variables. For categorical variables, chi-squared tests were used. e-GFR, estimated glomerular filtrating ratio; SD, standard deviation; TKA, total knee arthroplasty.

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