Table 3

Viral sequence analyses and predictors of spontaneous clearance

Clearers (95% CI)Progressors (PV+FV) (95% CI)p Value
Number1040
Baseline quasispecies3 (2 to 5)4 (3 to 6)0.21
Cumulative quasispecies (two samples taken <150 days apart)7 (7 to 8)9 (8 to 12)0.24
Baseline Hamming distance0.39 (0.22 to 0.92)0.64 (0.36 to 2.97)0.38
Cumulative Hamming distance (two samples taken <150 days apart)0.03 (0 to 0.06)2.045 (0.81 to 10.47)0.02*
Baseline HVR-1 dN/dS0 (0 to 0.325)0.28 (0 to 0.95)0.18
Cumulative HVR-1 dN/dS (two samples taken <150 days apart)0.17 (0 to 0.35)1.02 (0.71 to 1.84)0.03*
  • * Significant p value<0.05.

  • dN/dS, non-synonymous substitutions per non-synonymous site divided by synonymous substitutions per synonymous site; FV, fluctuating viraemia; HVR-1, hypervariable region-1; PV, plateau viraemia.