Table 3. Prevalence and counts (log10 cells/g of faeces) of Bifidobacterium.
| Age, weeks | Prevalence, n (%) | Counts, median and quartile (Q1, Q3) | ||||
|---|---|---|---|---|---|---|
| PF group | BbF group | p-value1 | PF group | BbF group | p-value2 | |
| 1 | 27 (55.1) | 34 (75.6) | 0.03 | 9.14 (8.88, 9.55) | 9.12 (8.62, 9.83) | NS |
| 2 | 29 (59.2) | 39 (86.7) | <0.01 | 9.21 (8.86, 9.52) | 8.94 (8.19, 9.47) | NS |
| 4 | 32 (65.3) | 41 (91.1) | <0.01 | 9.42 (8.92, 9.65) | 9.14 (8.43, 9.42) | NS |
| 8 | 41 (83.7) | 43 (95.6) | NS | 9.17 (8.87, 9.55) | 9.15 (8.55, 9.39) | NS |
PF: placebo infant formula (n=49); BbF: infant formula containing non-live B. bifidum OLB6378 (n=45); NS: not significant. Counts, median and quartile (Q1, Q3), were calculated from Bifidobacterium-positive samples. 1Fisher’s exact test, 2Mann-Whitney U-test.