The Video intervention to Inspire Treatment Adherence for Life (VITAL Start): protocol for a multisite randomized controlled trial of a brief video-based intervention to improve antiretroviral adherence and retention among HIV-infected pregnant women in Malawi

Table 1 Trial site characteristics

Site	HIV prevalence at ANC (%)	HIV-positive women attending ANC per year, n (%)			Proportion retained after initiation (%)
Site	HIV prevalence at ANC (%)	On ART	Not on ART	Total	6 months	12 months
Kawale Health Center	12.4^a	191 (38.9)	300 (61.1)	491	68^b	57^b
Area 25 Health Center	11.2	303 (51.9)	281 (48.1)	584	62	58
Mangochi District Hospital	12	288 (47.8)	315 (52.2)	603	46^c	53^c

All data from Malawi Ministry of Health HIV Unit quantitative data reports, calendar year 2015 unless otherwise noted due to missing data ^aIncluded data from 2014 quarter 4 due to missing data in 2015 quarter 1 ^bIncluded data from 2014 quarter 3 due to missing data in 2015 quarter 1 ^cUsing data from calendar year 2016

ISSN: 1745-6215