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Figure 1. Cumulative prevalence of Streptococcus mutans colonization for 0 to 24 mos of age in all subjects. This Fig. shows the cumulative prevalence of Streptococcus mutans colonization from birth to 24 mos of age at each three-month interval for all infants (pre-term and full-term) within the study. It represents a combined prevalence of pre-dentate and dentate colonization over the entire duration of the study. "n value" is the total number of infants in the study, which is 312, at each three-month interval.