In a multivariate logistic regression model , predictors of virological suppression included efavirenz use -LSB- odds ratio ( OR ) @ ; @ % confidence interval ( CI ) @-@ @ ; P = @ -RSB- , lower cost of clinic visits ( OR @ ; @ % CI @-@ @ ; P = @ ) , improvement in CD@ percentage ( OR @ ; @ % CI @-@ @ ; P = @ ) , and care at Kayunga vs.Kangulamira ( OR @ ; @ % CI @-@ @ ; P = @ ) .