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Table 6 Intestinal microbiota counts in faecal samples of infants (as log10 of cfu/g), at 4, 6, 9 and 12 months of age. Values are Mean + Standard Error of the Mean (SEM)

From: Evaluation of the safety, tolerance and efficacy of 1-year consumption of infant formula supplemented with Lactobacillus fermentum CECT5716 Lc40 or Bifidobacterium breve CECT7263: a randomized controlled trial

  Control group Group Lf   Group Bb  
Bacterial group 4 month 6 months 9 months 12 month 4 months 6 months 9 months 12 months p-value vs control 4 months 6 months 9 months 12 months p-value vs control
Lactobacillus spp. 6.83 ± 0.1 7.12 ± 0.2 7.14 ± 0.1 6.58 ± 0.1 8.73 ± 0.1 8.39 ± 0.1 7.75 ± 0.1 7.21 ± 0.1 0.000 7.48 ± 0.1 7.29 ± 0.1 7.07 ± 0.1 6.45 ± 0.1 0.024
Bifidobacterium spp. 9.88 ± 0.1 9.91 ± 0.1 9.91 ± 0.1 9.93 ± 0.1 9.53 ± 0.1 9.77 ± 0.1 9.89 ± 0.1 9.78 ± 0.1 0.903 9.73 ± 0.1 9.91 ± 0.1 9.94 ± 0.1 9.67 ± 0.1 0.085
Clostridium spp. 5.38 ± 0.1 6.14 ± 0.1 6.64 ± 0.1 6.63 ± 0.1 5.64 ± 0.1 6.25 ± 0.1 6.72 ± 0.1 6.66 ± 0.1 0.632 5.71 ± 0.1 6.45 ± 0.1 6.59 ± 0.1 6.54 ± 0.1 0.026
Bacteroides spp. 6.59 ± 0.2 7.08 ± 0.1 7.68 ± 0.2 7.83 ± 0.2 6.44 ± 0.2 7.33 ± 0.2 8.03 ± 0.2 8.22 ± 0.2 0.044 6.04 ± 0.2 7.12 ± 0.2 7.39 ± 0.2 7.93 ± 0.2 0.777
E.coli 10.31 ± 0.2 9.97 ± 0.1 9.73 ± 0.1 9.51 ± 0.1 10.20 ± 0.1 10.07 ± 0.1 9.46 ± 0.1 9.16 ± 0.1 0.089 10.41 ± 0.1 9.96 ± 0.1 9.78 ± 0.1 9.47 ± 0.1 0.806