Baseline Study Characteristics^* by MRSA Colonization.

<p>*Data at baseline/enrollment visit among all 550 subjects. Data presented represent numbers (percentages) for categorical variables and medians (interquartile ranges) for continuous variables</p><p>**Statistical testing were conducted using Wilcoxon-Mann-Whitney test for continuous variables, Chi-square test for categorical variables cells greater than five, Fisher’s exact test for categorical variables cells less than five</p><p>¹ Within 6 months prior to study enrollment</p><p>² All data represent n = 550, except there were missing data for the following variables: illicit drug use (n = 14), diabetes (n = 13), chronic skin disease (n = 12), history of SSTI (n = 12), hospitalization (n = 11), ER visit (n = 15), TMP-SMX (n = 10), current CD4 (n = 1), and current HAART use (n = 17).</p><p>³ Within 12 months prior to study enrollment</p><p>AIDS, acquired immunodeficiency syndrome; ER, emergency room; HAART, highly-active antiretroviral therapy; HIV, human immunodeficiency virus; MRSA, methicillin-resistant <i>Staphylococcus aureus</i>; SSTI, skin and soft tissue infection; TMP-SMX, trimethoprim-sulfamethoxazole</p><p>Baseline Study Characteristics<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0128071#t001fn001" target="_blank">^*</a> by MRSA Colonization.