Figure 1.

Study selection.

¹Published and unpublished literature were searched using the string HIV AND (cascade OR continuum); *PubMed, Medline (Ovid), CINAHL (Ebscohost); †unpublished literature: a. conference abstracts: CROI 2015, AIDS 2014, CROI 2014, CROI 2013, IAS 2013, HIV Drug Therapy Conference (Glasgow) 2014, b. specific websites (UNAID, WHO, Government Websites of OECD member countries) [14]. Authors were contacted to provide the complete paper where it was not available; ^¶additional records identified from search of reference lists; ^§some studies had more than one reason for exclusion.