Table 2 Proportion of end of treatment response (ETR) and sustained viral response (SVR) with pegylated interferon during 6 months, according to timing of therapy after exposure36

Timing of therapy	ETR (%)	SVR (%)
Month 3 after exposure	95.3	93.2
Month 4 after exposure	91.8*	84.9*
Month 6 after exposure	84.8*	68.3*

*In the study of Kamal et al,36 ETR and SVR were observed for patients starting therapy at month 3 and month 5. We extrapolated ETR and SVR for patients starting therapy at month 4 and month 6 from these data according to a linear function.