The percent decline in CD4 count was 13.3 % ( 95 % CI 12.0 % , 14.7 % ) , 10.6 % ( 95 % CI 8.8 % , 12.4 % ) , and 13.8 % ( 95 % CI 12.1 % , 15.5 % ) per annum for baseline VLs of < 10,000 ( N = 314 ) , 10,001-100 ,000 ( N = 338 ) , > 100,000 ( N = 122 ) copies/ml .