. Author manuscript; available in PMC: 2023 Jan 20.

Published in final edited form as: Infect Control Hosp Epidemiol. 2015 Apr 14;36(7):786–793. doi: 10.1017/ice.2015.76

TABLE 4.

Cox Proportional Hazards Model of Risk Factors Associated With Recurrent Colonization With MRSA

Variable	HR (95% CI)	P value
Duration of colonization	1.01 (1.00–1.02)	.020
Age	1.00 (0.99–1.02)	.478
Percent of household members younger than 18^a	1.01 (1.00–1.01)	.088
At least 1 household member with MRSA colonization^b	2.59 (1.65–4.07)	<.001
Treatment with clindamycin	0.70 (0.43–1.11)	.130

NOTE. HR, hazard ratio.

HR represents odds for each 10% increase in number of household members.

Time-varying variable, at each visit.