Hæmatologiske anomaliteter blev rapporteret mere hyppigt hos patienter, der modtog PegIntron i kombination med ribavirin end hos patienter, der modtog interferon alfa- 2b i kombination med ribavirin.
Haematological abnormalities were more frequently reported in patients receiving PegIntron in combination with ribavirin when compared to patients receiving interferon alfa-2b in combination with ribavirin.