Baseline Characteristics.

aAll children had HIV-1 RNA <50 copies/ml at screening and pre-screening. HIV-1 RNA was assumed to be at least 50 copies/ml at baseline for 11 children [six children (two CT and four PTI) <100 copies/ml, two children (one CT and one PTI) <200 copies/ml and three children (PTI) > = 200 copies/ml: range 240–2430 copies/ml. Note: chi-squared test and t-test were used to compare categorical and continuous characteristics respectively. CT = continuous therapy; PTI = planned treatment interruption; IQR = interquartile range; CDC = Centers for Disease Control and Prevention.