. Author manuscript; available in PMC: 2018 Apr 1.

Published in final edited form as: AIDS Behav. 2017 Apr;21(4):1016–1024. doi: 10.1007/s10461-016-1585-5

Table 5.

Comparison of person-years (PY) according to their classification as “retained” based on three different definitions of retention in care, stratified by IDU

Retained by visits Retained by HIV labs	Yes		No

	Yes	No	Yes	No
PWID
Person-years	4374	541	1498	2445
PY (%) on ART	3643 (83.3 %)	343 (63.4 %)	1096 (73.2 %)	26 (1.1 %)
PY (%) virally suppressed	3120 (71.3 %)	196 (36.2 %)	866 (57.8 %)	11 (0.4 %)
Non-IDU
Person-years	10,222	961	2416	3195
PY (%) on ART	8943 (87.5 %)	731 (76.1 %)	1863 (77.1 %)	51 (1.6 %)
PY (%) virally suppressed	7839 (76.7 %)	457 (47.6 %)	1489 (61.6 %)	34 (1.1 %)

IDU injection drug use, self-reported HIV transmission risk, PWID persons who inject drugs, PY person-year