Table 3.
Fecal Bacteroides and Ruminococcus predict serum serotonin and cortisol.a
| Dependent Variable | Step | Variable Entered | No. of variables included | Model R2 | C(p) | F-value | P-value |
|---|---|---|---|---|---|---|---|
| Serotoninb | 1 | Bacteroides | 1 | 0.189 | 2.631 | 4.885 | 0.038 |
| Serotoninc | 1 | Ruminococcus | 1 | 0.292 | 2.180 | 8.658 | 0.008 |
| Cortisold | 1 | Ruminococcus | 1 | 0.360 | 1.205 | 11.81 | 0.002 |
Note.
Fecal microbiota (independent variable) presented as a relative abundance, serum metabolite (dependent variable) presented as scaled import measure, diet did not meet criterion for inclusion in the model, N = 23.
Final model equation predicting serum serotonin, presented with unstandardized coefficients: Y = 0.642 + 0.016x1.
Final model equation predicting serum serotonin, presented with unstandardized coefficients: Y = 1.188 – 0.169x1.
Final model equation predicting serum cortisol, presented with unstandardized coefficients: Y = 1.138 – 0.109x1.