Research Article

Changes in B-Cell Counts and Percentages during Primary HIV Infection Associated with Disease Progression in HIV-Infected Men Who Have Sex with Men: A Preliminary Study

Table 1

Difference between HIV-infected and HIV-negative individuals.

CharacteristicsHIVHIV-negative value

Gender male/female, number (%)120 (100%)/0 (0%)24 (100%)/0 (0%)NS
Age at first visit, year, median (IQR)29 (17–64)32 (23–45)NS
Ethnicity, Han/no Han, number (%)112 (93.3%)/8 (6.7%)24 (100%)/0 (0%)NS
HIV subtype, number (%)
 CRF01_AE95 (79.2%)
 Other20 (16.7%)
 Unknown5 (4.1%)
Fiebig stages, number (%)
 I0 (0.0%)
 II19 (15.8%)
 III0 (0.0%)
 IV39 (32.5%)
 V21 (17.5%)
 VI41 (34.2%)
Baseline HIV viral load, median log10 copies/mL (IQR)4.71 (2.02–7.00)
Baseline B-cell counts, cells/μL, median (IQR)123 (30–448)257 (126–616)<0.001
Baseline B-cell percentages, %, median (IQR)6 (1–26)10 (6–20)<0.001
Baseline CD4+ T-cell counts, cells/μL, median (IQR)401 (87–1101)748 (230–1682)<0.001
Baseline CD8+ T-cell counts, cells/μL, median (IQR)1176 (407–23449)622 (159–1280)<0.001

All HIV-infected subjects were anti-HIV treatment naive at study entry. HIV-infected and healthy HIV negative individuals were compared using the chi-square test for categorical variables, independent -test for normally distributed continuous variables, and the Mann–Whitney test for non-normally distributed continuous variables.
HIV, HIV-infected individuals.
HIV negative, healthy HIV negative individuals.
NS, not significant, .
Fiebig stages was based on a combination of the estimated time post-infection at sampling and ancillary HIV PCR, Western blot and/or ELISA results.