Comparison of virological failure functions.

Table 3: Comparison of virological failure functions.

Variable able	Observed events	Log-rank test chi²	P-value
Age group
Paediatric (< 15 years)	141	32.59	< 0.001*
Adult (≥ 15 years)	1331
Gender
Female	892	1.95	0.163
Male	580
Regimen type
EFV	945	5.10	0.024*
NVP	527
HIV stage
Stage 1	398	0.99	0.805
Stage 2	299
Stage 3	384
Stage 4	125
Adherence
Good	959	43.55	< 0.001*
Poor	513

*significant. Shows log rank test comparison of the virological failure by time age group, gender, ART regimen type, adherence to treatment and stage of the disease.