Figure 3From: Age biases in a large HIV and sexual behaviour-related internet survey among MSM 2 nd order polynomic trendline curves for survey-surveillance discrepancies between self-reported new HIV diagnosis in 2009 in EMIS and surveillance data for 2009 (=number of HIV infections diagnosed in 2009 per 100 EMIS participants/ number of newly diagnosed HIV infections in 2009 per 100 MSM by 5-year age group). Back to article page