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Table 4 Variables associated with the combined clinical endpoint of RBV dose reduction, transfusion of erythrocyte concentrates, or administration of epoetin-α

From: Erythropoietin rs1617640 G allele associates with an attenuated rise of serum erythropoietin and a marked decline of hemoglobin in hepatitis C patients undergoing antiviral therapy

 

Univariate analysis

Multivariate analysis

Characteristics

Odds ratio [95% CI]

Pvalue

Odds ratio [95% CI]

Pvalue

EPO rs1617640 (GG vs. TT/TG)

4.19 [2.31 – 7.59]

< 0.001

4.14 [2.20 – 7.82]

< 0.001

Sex (female vs. male)

0.45 [0.24 – 0.83]

0.013

0.41 [0.21 – 0.80]

0.003

Baseline Hb (g/dl)

0.87 [0.70 – 1.09]

0.24

0.83 [0.65 – 1.07]

0.168

RBV start dose*

1.21 [1.04 – 1.40]

0.012

1.18 [1.01 – 1.39]

0.036

  1. Abbreviations: EPO erythropoietin, ITPA inosine triphosphatase, RBV ribavirin, CI confidence interval. *RBV starting dose is coded as a continuous variable with an intercept at 800 and an increase of 1 in the model corresponding to 100 mg increase of the actual dose.