Assessment of the nevirapine safety signal using data from the national antiretroviral dispensing database: a retrospective study

Table 2 Number of patients with a NVP-to-PI substitution

Time after starting ART (number of weeks)	Number of NVP to PI substitutions				Total
Time after starting ART (number of weeks)	2008	2009	2010	2011	Total
2	3	7	2	12	24
4	1	6	23	12	42
6	6	8	24	32	70
8	4	6	11	26	47
10	1	4	7	12	24
12	2	4	9	10	25
14	3	5	6	3	17
16	3	2	3	4	12
18	0	1	2	4	7
20	1	4	3	4	12
22	1	1	1	2	5
24	0	0	2	3	5
Total	25	48	93	124	290

Throughout the period that was assessed, the majority of NVP-to-PI substitutions took place within the first12 weeks of ART. Higher numbers of substitutions are observed in 2010 and even higher in 2011 than the two previous years

ISSN: 2052-3211