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Table 1 Outcomes and definitions

From: Continuous quality improvement interventions to improve long-term outcomes of antiretroviral therapy in women who initiated therapy during pregnancy or breastfeeding in the Democratic Republic of Congo: design of an open-label, parallel, group randomized trial

Outcomes Definition
Primary
 Loss-to-follow-up Proportion of participants for whom the whereabouts is unknown at: delivery, 6 weeks, 12 and 24 months postpartum
 Virological suppression Proportion of participants with undetectable viral loat at: delivery, 12 and 24 months postpartum.
Secondary
 Timely infant HIV diagnosis Proportion of HIV-exposed infant with an appropriate HIV test result at 6 weeks, 12 and 24 months postpartum.
 Timely ART initiation Proportion of HIV-infected participants (mother and infant) initiated on ART within 2 weeks of diagnosis
 Retention in care Proportion of participants who are known to be receiving HIV care 6 weeks, 12 and 24 months postpartum.
 Non-adherence to scheduled visits Proportion of participants whose whereabouts is unknown or who are in care but have missed at least one scheduled visit over the evaluation period at: delivery, 6 weeks, 12 and 24 months postpartum.
 Virological suppression Proportion of participants with undetectable viral load at: delivery, 12 and 24 months postpartum.
 MTCT rates Proportion of infants born to participating women who tested positive for HIV at 6 weeks, 12 and 24 months postpartum.
 Survival Proportion of participants known to be alive at 6 weeks, 12 and 24 months postpartum.