. Author manuscript; available in PMC: 2014 Jun 23.

Published in final edited form as: AIDS Behav. 2014 Apr;18(0 3):340–347. doi: 10.1007/s10461-013-0553-6

Table 3.

Association between knowledge of pre-exposure prophylaxis (PrEP) and year of data collection among men who have sex with men, National HIV Behavioral Surveillance System, Denver, Colorado, 2008 and 2011

	Heard of PrEP	Crude prevalence ratio (95 % CI)	Adjusted prevalence ratio (95 % CI)^*
Year of data collection
2011 (post-iPrEx results)	131 (28)	1.33 (1.07, 1.65)	1.43 (1.18, 1.72)
2008 (pre-iPrEx results)	91 (21)	1.0 (ref)	1.0 (ref)

Adjusted for race, age, income, anticipated change in condom use, and anticipated change in number of partners