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. Author manuscript; available in PMC: 2009 Apr 6.
Published in final edited form as: Antivir Ther. 2008;13(5):705–713.

Table 3.

Factors influencing the time to undectability (HBV-DNA < 200 copies/mL), univariate analysis

Crude Hazard Ratio CI 95% p
TDF v. ADV 2.22 (0.99–4.94) 0.05
HBV load at baseline
 - per log10 copies/mL HBV-DNA 0.66 (0.55–0.80) <0.001
 - < 2000 copies/mL 1.00 ** **
 - 2000 – 10,000 copies/mL 0.12 (0.03–0.46) 0.002
 - > 10,000 copies/mL 0.05 (0.02–0.14) <0.001
Presence of HBe antigen in serum 0.13 (0.04–0.41) <0.001
Presence of YMDD mutation 0.77 (0.29–2.07) 0.6
Presence of Pre C mutation 0.60 (0.28–1.28) 0.2
HIV load at baseline (per log10 HIV-RNA) 0.85 (0.47–1.54) 0.6
Duration of HIV infection (per year) 0.95 (0.88–1.02) 0.14
CD4+ Cell Count (≥ 402/mm3) 0.74 (0.42–1.31) 0.3
METAVIR Fibrosis F0–F2 vs F3–F4 1.72 (0.78–3.79) 0.2
ALT level at baseline (≥72 UI/mL = median) 0.46 (0.25–0.85) 0.01
Additional HCV co-infection 1.42 (0.44–4.58) 0.6
Alcohol consumption (cut at the median) 0.71 (0.40–1.29) 0.3