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Table 2 Frequency of anti-Tat antibodies and disease stage

From: Association between different anti-Tat antibody isotypes and HIV disease progression: data from an African cohort

  

IgG

IgA

IgM

Negative

CD4+ T cells (cells/μl)

<200

7/17 (41 %)

4/17 (24 %)

5/17 (29 %)

7/17 (41 %)

200–500

23/48 (48 %)

10/48 (21 %)

22/48 (46 %)

12/48 (25 %)

>500

14/30 (47 %)

1/30 (3 %)

22/30 (73 %)

6/30 (20 %)

 

p-valuea

0.92

0.05

0.008

0.27

  1. aFrequency of the different anti-Tat antibody isotypes was calculated in every stratum and compared using Freeman-Halton extension of the Fisher’s exact probability test for a two-rows by three-columns contingency table