Table 2.

Differences in Co-morbidities^a between SLE and OA Receiving THA and TKA

	THA			TKA
	SLE N = 54	OA N = 108	P-Value	SLE N = 45	OA N = 90	P-Value
Congestive heart failure	2 (4%)	---	0.11	1 (2%)	2 (2%)	0.99
Valvular disease	10 (18%)	2 (3%)	0.0003*	4 (9%)	3 (3%)	0.22
Pulmonary circulation disease	3 (5%)	---	0.04*	---	---	---
Peripheral vascular disease	1 (2%)	1 (1%)	0.99	---	---	---
Paralysis	2 (4%)	1 (1%)	0.26	1 (2%)	---	0.33
Other neurological disorders	1 (2%)	10 (7%)	0.10	2 (4%)	6 (7%)	0.72
Chronic pulmonary disease	16 (29%)	17 (20%)	0.06	6 (13%)	6 (8%)	0.21
Hypothyroidism	8 (16%)	15 (15%)	0.99	12 (27%)	16 (18%)	0.26
Renal failure	7 (14%)	2 (1%)	0.007*	5 (11%)	2 (2%)	0.04*
Liver disease	---	1 (3%)	0.99	1 (2%)	---	0.33
Coagulopathy	1 (2%)	1 (2%)	0.99	3 (7%)	---	0.035*
Obesity	9 (16%)	23 (20%)	0.54	14 (31%)	26 (29%)	0.84
Depression	7 (14%)	17 (14%)	0.82	10 (22%)	21 (22%)	0.99
Hypertension	28 (52%)	32 (29%)	0.009*	25 (56%)	53 (60%)	0.72

^*Statistically significant

^aElixhauser Co-morbidity Measures