cognitive stimulation in an integrated model. We separately delivered these 2 components in
a cluster-randomized controlled trial to evaluate their comparative effectiveness in promoting
healthy child development and caregiver mental health. This is the first study to do so for HIV-
affected children and their infected mothers. Methods: Two hundred twenty-one HIV-
exposed but uninfected child (2–3 years old) and caregiver dyads in 18 geographic clusters …