Table 1.

Univariate Cornparison of Characteristics of Patients with S. aureus Infections Originating in the Community

Characteristics		CA-MRSA (n=102)	HA-MRSA (n=102)	CA-MSSA (n=102)	P
Age (median, range)		46 (3–88)	62 (19–90)	53 (3–82)	<.001
Gender	Male	58%	57%	48%	NS
	Female	42	43	52
# Antibiotic classes	0	45%	38%	54%	.132
received in	1	40	49	42
past year	2	10	7	4
	>=3	5	6	0
Comorbid conditions
Injection drug use		0	3	1	.170
Cardiovascular disease		14	43	13	<.001
Diabetes mellitus		14	43	22	<.001
Chronic skin disease		7	2	9	.100
Pulmonary disease		19	17	4	.003
Renal disease		4	16	1	<.001
Malignancy		6	16	4	.005
HIV		4	0	0	.017
Neurological disease		3	7	3	NS
Prior endocarditis		0	1	1	NS
Prior influenza		3	1	5	NS
Concurrent infection		19	4	14	.005