Fig 1.
The comparison of four kits performance and the frequency of different band detection.
A, The comparison of false-positive rate and positive predictive value (PPV) between a 4th generation assay(Architect HIV Ag/Ab Combo) and three 3rdgeneration EIAs (WanTai, XinChuang and Livzon).Note: PPV was positive predictive value, FPR was false-positive rate.B, The frequency of different band was detected in the patients with initial WB positive results.
Table 1.
The results of Western blot and follow-up.
Table 2.
Frequency of 11 band patterns detected in 559 patients with initial WB positive results.
Table 3.
The consistency and PPV of four kits at different screening values.
Fig 2.
Distribution of screening values using different kits in the first WB negative, indeterminate and positive result.