Comparation of the perioperative clinical characteristics during total hip arthroplasty of patients with rheumatoid arthritis and ankylosing spondylitis

Table 4 Cost, length of stay and complication

	RA (37)	AS (23)	P value	Significance
Medicine Cost (dollar)	17088.13 ± 7650.25	17,806 ± 5424.43	0.6963	ns
LHS (day)	11.62 ± 3.94	9.70 ± 3.95	0.0719	ns
Complication (n/%)
Total (n/%)	6/16.2	2/8.69	0.4564	ns
SAS	1/2.7	0/0	> 0.9999	ns
Fracture	1/2.7	2/8.69	0.5524	ns
Deep-vein thrombosis	3/8.1	0/0	> 0.2788	ns
Flexion contracture	1/2.7	0/0	> 0.9999	ns

LHS: Length of hospital stay; SAS: Subcutaneous abdominal hemorrhage; ns: non-statistical difference

ISSN: 1471-2474