The 2013 cut-off was chosen so that we would have adequate power to detect a modest effect as statistically significant and so that we would be able to examine and compare viral suppression over the short-term (as reported here) and long-term (analyses extending out to March 2017), with the same cohort.
![[This page as RDF]](http://data.gesis.org/somesci/static/rdf-icon.gif){kind=icon}