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. Author manuscript; available in PMC: 2014 Aug 1.
Published in final edited form as: J Pediatr. 2013 Feb 26;163(2):416–423.e4. doi: 10.1016/j.jpeds.2013.01.024

Table III.

Effects of feeding group and dietary iron on gastrointestinal bacteria

Taxonomic Level Feeding Group1 P-value2
IZFC IFC M FG TDI FG*TDI
Actinobacteria ↔ ↓ ↔ 0.003 0.004 0.009
   Actinobacteriales ↔ ↔ ↔ 0.025 0.24 0.089
     Rothia ↔ ↔ ↔ <0.001 0.010 0.002
   Bifidobacteriales ↔ ↓ ↔ 0.003 0.005 0.010
     Bifidobacterium ↔ ↓ ↔ 0.004 0.005 0.010
Bacteroidetes ↓ ↑↑ ↔ 0.047 0.34 0.26
   Bacteroidales ↓ ↑ ↔ 0.022 0.55 0.13
Firmicutes ↑↑ ↓ ↑ 0.30 0.24 0.29
   Bacilli ↔ ↓ ↔ 0.035 0.092 0.44
     Bacillales ↔ ↔ ↔ 0.35 0.17 0.19
     Lactobacillales ↔ ↓ ↔ 0.035 0.096 0.045
Clostridia ↑↑ ↔ ↑↑ 0.44 0.72 0.13
     Clos. Group IV ↔ ↔ ↔ 0.19 0.15 0.049
     Clos. Group XIVa ↑ ↑ ↑↑ 0.005 0.21 0.013
     Clos. Others ↑ ↓ ↔ 0.41 0.49 0.75
Proteobacteria ↔ ↔ ↓ 0.54 0.016 0.057
   Enterobacteriaceae ↔ ↓ ↓ 0.45 0.029 0.11
1

Δ% abundance of 16S pyrosequences from age 5 to 9 mo stratified by FG; ↑↑↑: >50%; ↑↑: >25%; ↑: >10%; ↔ -10%-10%; ↓: >-10%; ↓↓: >-20%; ↓↓↓: >-50%

2

Results of ANOVA tests of Δ16S abundance from age 5 to 9 mo. P-values are from MANOVA of FG, TDI, and the interaction term FG*TDI.