Predictors of early viral suppression (viral load<400 copies/ml) on second-line ART in the community programme.

aWald test; b only one patient switched regimens for non-adherence in the community programme. This patient has therefore been excluded as it would not be possible to assess a potential association); c not included in the multivariable model as considered to be on the causal pathway between exposures at time of switch and viral suppression on second-line ART.