Metabolic factors and post-traumatic arthritis may influence the increased rate of surgical site infection in patients with human immunodeficiency virus following total hip arthroplasty

Table 1 Demographic and medical history in patients with and without surgical site infection (SSI)

Variable n	Category	No SSI 128	(+) SSI 16	p value
Age		49.6 ± 4.5	50.2 ± 4.9	0.657
	Caucasian	117 (91%)	14 (88%)
Ethnicity	Black	2 (2%)	2 (12%)	0.125
	Hispanic	8 (6%)	0 (0)
	Asian	1 (0.8%)	0 (0)
	Osteonecrosis	125 (98%)	13 (81%)
Indication for arthroplasty	Osteoarthritis	3 (2%)	1 (6%)	0.008
Indication for arthroplasty	Trauma	0(0)	2 (12%)	0.005
Drug Use		66 (46%)	8 (50%)	1.000
Smoking		19 (13%)	1 (6%)	0.700
Alcohol		94 (65%)	9 (56%)	0.361
Body mass index		25.0 ± 3.7	24.9 ± 3.8	0.908
Waist/hip ratio		0.93 ± 0.09	0.86 ± 0.12	0.047
Lipodystrophy		80 (56%)	10 (63%)	0.792
Hyperlipidemia		43 (30%)	7 (44%)	0.266
Total cholesterol (mg/dL)		174.7 ± 31.5	166.2 ± 32.7	0.339
HDL (mg/dL)		52.5 ± 13.4	44.8 ± 10.7	0.015
LDL (mg/dL)		93.5 ± 25.8	84.4 ± 31.4	0.283
Triglycerides (mg/dL)		146.8 ± 81.4	185.6 ± 86.0	0.104
Renal disease		2	0	>0.99
Hepatitis C		2	0	>0.99
Diabetes		0	0	N/A

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