Table 4.

 Viral load response and switch to second line regimens in study monitoring efficacy of ART, Tororo and Busia Districts, Uganda, 2003-7. Figures are numbers (percentages where shown)

	≥2 viral loads >500 copies/mL after 90 days	Proportion changed to second line	Total changed to second line	Changed to second line with detectable viral load
Viral load	16/349 (4.6)	7/16 (44)	7	7/7 (100)
CD4	26/346 (7.5)	4/26 (15)	4	4/4 (100)
Clinical	19/352 (5.4)	2/19 (11)	17	2/17 (12)
All	61/1047 (5.5)	13/61 (21)	28/1047 (2.8)	13/28 (46)