CD4 and AIDS: A total of 248 patients did not have a documented pre-treatment CD4+ T-cell count, of which 114 (46%) had a documented acquired immunodeficiency syndrome- (AIDS) defining illness in their clinical chart within the period 90-days prior to 30-days post initiation of ART.The ratio of patients on NNRTI- versus PI-based regimen increased over time, most notably after the year 2000.