Anti-H influenzae type b anti-polyribosylribitol phosphate IgG geometric mean concentrations were lower in the consistent limb group than in the alternating limb group at @ months ( consistent limb @ g/mL -LSB- @ % CI @-@ -RSB- vs alternating limb @ g/mL -LSB- @-@ -RSB- ; p = @ ) and at @ months ( @ g/mL -LSB- @-@ -RSB- vs @ g/mL -LSB- @-@ -RSB- ; p = @ ) .