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Table 2 Comparison of mean CD4 cell counts: Intergroup and intragroup comparison of mean CD4 cell counts for the virally suppressed group, treatment failure group and low level viremia group at different time points

From: Pre-treatment minority HIV-1 drug resistance mutations and long term virological outcomes: is prediction possible?

  Virally suppressed group Virological failure group Low level viremia group Any viremia group P-value (α = 5 %)
Baseline CD4 cell count (cells/μl) n = 45, Mean = 199 n = 8, Mean = 183    0.74
n = 45, Mean = 199   n = 12, Mean = 181   0.66
n = 45, Mean = 199    n = 20, Mean = 182 0.61
  n = 8, Mean = 183 n = 12, Mean = 181   0.97
CD4 cell count @ 6–12 months after treatment initiation (cells/μl) n = 18, Mean = 387 n = 8, Mean = 250    0.18
n = 18, Mean = 387   n = 9, Mean = 438   0.58
n = 18, Mean = 387    n = 17, Mean = 350 0.64
  n = 8, Mean = 250 n = 9, Mean = 438   0.07
P-value (α = 5 %) 0.0001 0.47 0.001 0.01