Number of MSM diagnosed with HIV infection in 1995-2011 in Norway, by their estimated year of infection (bars) (N=793) and by year of diagnosis (line) (N=991). For the incidence bars, we excluded 198 cases with unknown year of infection and grouped 31 cases with uncertain year of infection before 1990 in one bar. Note that existing bars will increase in the coming years as new cases infected in those years are diagnosed, especially in the most recent years. The incidence bars for the years before 1995 do not include those, diagnosed before 1995.
Jakopanec et al. BMC Public Health 2013 13:144 doi:10.1186/1471-2458-13-144