2. Clinical characteristics

2.1: CDC stages at recruitment and year (number of patients and median CD4 value)

2.2: CDC stages in active participants and year (number of patients and median CD4 value) *

* At the first CD4 assessment of the year

2.3: The five most frequent AIDS defining events from the four preceding years, number of diagnoses per year

2.4: Deaths during recent years, by CDC stage