Table 3. Results of Bacteroidetes, Firmicutes, Methanobrevibacter smithii and Lactobacillus genus quantitative PCR.
| Obese (n=67) | Controls (n=45) | P | |
|---|---|---|---|
| Presence of phyla, genus or speciesa | |||
| Bacteroidetes | 41 (61.2%) | 27 (60%) | 0.52 |
| Firmicutes | 67 (100%) | 45 (100%) | — |
| Lactobacillus | 23 (34.3%) | 8 (17.8%) | 0.04 |
| Methanobrevibacter smithii | 50 (74.6%) | 40 (88.9%) | 0.05 |
| Quantitative comparison (log copies DNA ml−1)b | |||
| Bacteroidetes | 4.26 (0–5.82) | 5.65 (0–6.37) | 0.25 |
| Firmicutes | 6.43 (5.32–7.29) | 6.62 (5.86–7.21) | 0.30 |
| Lactobacillus | 0 (0–3.31) | 0 (0–0) | 0.039 |
| Methanobrevibacter smithii | 2.31 (0–3.51) | 3.78 (1.71–5.30) | 0.002 |
a
Values noted as number (percentage), Fisher's exact test.
b
Values noted as log copies DNA ml−1, median (interquartile range), Mann–Whitney test.