Logistic regression model for characteristics at ART initiation for adults who were older (≥ 50 years) compared to younger ones (18-50 years) (N=3316).

Abbreviations: ALT – Alanine transaminase; AST – Aspartate transaminase; BMI – Body Mass Index; clear. – clearance; CD4+ – Cluster of Differentiation; CI – Confidence Interval; cp – copies; Cr. – Creatinine; IQR – Inter Quartile Range; Kg – Kilogramme; M2 – Meter; SD – Standard Deviation; WHO – World Health Organization; dL – deciliter; g – grams; Hg – mercury; mmol – millimols; mL − milliliter; mm – millimeters; µL – microliter * n=968 ( < 50 years n = 912; > 50 years n = 56) in log 10 copies per milliliter. § Baseline adjusted model; Ω - model with viral load, interaction between gender and hemoglobin; and creatinine clearance (BMI excluded) α − WHO stages 2, 3 & 4 included as a linear trend