Figure 3.

Association of weight-for-age (a), height-for-age (b), BMI-for-age (c) and HIV viral load (c) with progression. The solid black line represents the fitted line of the association between the predictors and the estimated hazard ratio of progression. The shaded area represents the 95% confidence interval. For the upper panel the model was adjusted for country of origin, age at enrollment, year of enrollment, weight-for-age and height-for-age. For the lower panel the model was conducted in a subset of children with known viral load measurements at enrollment and was adjusted for country of origin, age at enrollment, year of enrollment, BMI-for-age and HIV RNA viral load. Cubic splines with five and three knots were used to adjust age at enrollment as well as weight-for-age and height-for-age to better fit the data.

Abbreviations: BMI, body mass index; HR, hazard ratio.