Criteria Yes (%) No (%)
A. Clinical failure 28(35.8) 50(64.1)
B. Immunological failure    
CD4 less than baseline * 29(58.0) 21(42.0)
CD4 fall >50% from peak* 41(82.0) 09(18.0)
CD4 less than 100* 24(48.0) 26(52.0)
 Only CD4 fall >50% from peak 12(15.4)  
 Only CD4 less than baseline 02(2.5)  
 Only CD4 less than 100 05(6.4)  
* patients with overlapping criteria based on immunological failure.
Table 3: Criteria of failure of first line therapy (n=78).