Increasing HIV and decreasing syphilis prevalence in a context of persistently high unprotected anal intercourse, six consecutive annual surveys among men who have sex with men in Guangzhou, China, 2008 to 2013.

PLoS One · 2014 · PMC4111575 · PMID 25061936

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The sentences

an increasing trendno p-value reported

After adjusting for demographic characteristics and key behaviors of the participants, the survey year remained an associated factor for HIV infection, indicating an increasing trend in HIV prevalence over years.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.