Percentages of doses followed by pain (A), redness (B), and swelling (C) at the specified injection site of any intensity and grade 3 intensity reported during the 4-day post-vaccination period (total vaccinated cohort). Footnote: PHiD-CV group= infants vaccinated with PHiD-CV co-administered with DTPa-HBV-IPV/Hib at 2, 3, and 4 months of age. Control group= infants vaccinated with DTPa-HBV-IPV/Hib at 2, 3, and 4 months of age. Grade 3 symptoms: pain if the infant was crying when the limb was moved or if the limb was spontaneously painful and redness or swelling if the diameter was >30 mm. Error bars indicate 95% confidence intervals.