TABLE 2

IgG GMCs (µg/mL) and Percentage of Infants With Seroprotective Antibody Concentrations at 12 Months of Age

AntibodymTdaP, n = 28No mTdaP, n = 115
GMC (95% CI)Seroprotection % (95% CI)GMC (95% CI)Seroprotection % (95% CI)
PT8.49 (5.92 to 12.17)10.75 (9.37 to 12.34)
FHA16.44 (12.29 to 21.99)19.07 (16.33 to 22.27)
Fim 2&325.78 (16.90 to 39.36)37.24 (30.00 to 46.23)
Tetanus0.43 (0.28 to 0.68)92.6 (76.5 to 99.1)0.26 (0.22 to 0.31)83.5 (75.4 to 89.7)
Diphtheria0.17 (0.11 to 0.24)78.6 (59.0 to 91.7)0.18 (0.16 to 0.22)76.5 (67.7 to 83.9)
  • —, no correlate of protection for these antibodies.