Restricting to vRNA @ copies per milliliter , multivariable models showed the following factors associated with higher CD@ T-cell activation : older age -LSB- @ vs. @ years : @ % ( @ to @ ) , P = @ -RSB- , hepatitis C virus antibody positivity -LSB- @ % ( @ to @ ) , P = @ -RSB- , Hispanic vs. white -LSB- @ % ( @ to @ ) , P < @ -RSB- , lower concurrent CD@ count -LSB- @ vs. > @ cells/mm : @ % ( @ to @ ) , P < @ -RSB- , lower concurrent CD@/CD@ ratio -LSB- -@ % ( -@ to -@ ) per @ unit increase , P < @ -RSB- , and higher pre-ART CD@ T-cell activation -LSB- @ % ( @ to @ ) per @ % higher , P < @ -RSB- .