Table 2.

Prevalence of Nasal Methicillin-Resistant Staphylococcus aureus Colonization and Incarceration Exposure by HIV Status and HIV Clinic

Population	Sample Size	Prevalence of Incarceration Exposure	Colonization Prevalence	Relative Prevalence	95% CI	P Value
HIV status
HIV positive	458	59%	11.0%	2.6	1.12–6.07	.03
HIV negative	143	10%	4.2%	Reference
HIV clinica
RIC	141	100%	15.6%	5.7	1.7–18.9	.005
Women’s Clinic	205	49%	12.2%	4.4	1.3–14.7	.015
Bilingual Clinic	109	22%	2.8%	Reference

For the comparison of prevalence between human immunodeficiency virus (HIV)–positive and HIV-negative participants, the reference group is HIV-negative participants. For the comparison of prevalence among HIV clinics, the reference group is the Bilingual Clinic. Recently Incarcerated Clinic, clinic caring for HIV patients recently incarcerated; Women’s Clinic, clinic caring for HIV-infected women; Bilingual Clinic, clinic caring for HIV patients who are Hispanic.

Abbreviations: CI, confidence interval; HIV, human immunodeficiency virus; RIC, Recently Incarcerated Clinic.

^aThree HIV-infected men were enrolled from the Women’s Clinic; for the analysis they were counted with HIV-infected patients but were not identified as being seen in the Women’s Clinic.