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. 2012 Jun 1;86(6):1026–1031. doi: 10.4269/ajtmh.2012.11-0807

Figure 1.

Figure 1.

Geometric mean titer (GMT) and 95% confidence interval of serum IgG anticapsular polysaccharide antibody in children from rural Kangaba (Hib unvaccinated) and urban Bamako (Hib vaccinated) by age group. The GMTs for the 6-week age groups represent pre-vaccination immune status and were not significantly different. The GMTs for all other age groups were significantly higher in Bamako than in Kangaba (one-sided P < 0.025, Wilcoxon rank sum test). The number of children per age group per site was 30.