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. Author manuscript; available in PMC: 2016 Jun 7.
Published in final edited form as: J Acquir Immune Defic Syndr. 2016 Jun 1;72(2):189–197. doi: 10.1097/QAI.0000000000000947

Figure 1.

Figure 1

Secular trends in sexual behavior reported at the first visit in a calendar year by HIV-negative MSM attending the Public Health – Seattle & King County STD clinic and Gay City Health Project 2002–2013, by site and method of data collection (N = 35,547)

CAI, condomless anal intercouse; CASI, computer-assisted self-interview; FTFI, face-to-face interview