TABLE 1

GMCs of serotype-specific anti-pneumococcal polysaccharide (anti-PPS) IgG and IgM and GMOPTs of anti-PPS antibodies 1 month after PCV9 immunization in toddlers who carried pneumococci of the same serotype in their nasopharynx (carriers) and those who did not carry the serotype (noncarriers)

Variable and serotypeCarriersNoncarriersP valuea
nGMC or GMOPT (95% CI)nGMC or GMOPT (95% CI)
IgG
    6A330.34 (0.23–0.51)380.40 (0.26–0.62)0.61
    9V62.90 (1.25–6.72)651.72 (1.35–2.20)0.22
    14120.51 (0.28–0.93)551.65 (1.20–2.26)0.002
    19F311.10 (0.75–1.63)401.91 (1.32–2.75)0.043
    23F180.63 (0.28–1.41)530.93 (0.60–1.45)0.37
IgM
    6A336.26 (5.00–7.84387.71 (6.01–9.88)0.22
    9V61.54 (0.87–2.75)661.54 (1.26–1.88)1
    14122.62 (1.61–4.27)604.47 (3.62–5.52)0.041
    19F311.91 (1.38–2.66)402.07 (1.70–2.53)0.66
    23F180.85 (0.43–1.68)530.93 (0.69–1.26)0.77
MOPA
    6A37621 (229–1687)421939 (1023–3674)0.06
    9V79545 (3403–26771)7210276 (7183–14702)0.90
    14134995 (2385–10458)675458 (3720–8008)0.85
    19F33533 (250–1136)48729 (404–1317)0.51
    23F25687 (185–2551)561811 (976–3358)0.12
  • a Student's t test was used for statistical comparisons.