Table 2.
Time-to-zero comparisonsa
| Bacterium | Treatment lipids compared | Median time to zero (h) | P valueb |
|---|---|---|---|
| E. coli | Phytosphingosine | 2.0 | 0.10 |
| Sphingosine | 0.5 | ||
| F. nucleatum | Phytosphingosine | 1.0 | 0.0143c |
| Sphingosine | 0.5 | ||
| Sapienic Acid | 8.0 | ||
| S. aureus | Phytosphingosine | 24.0 | 0.10 |
| Sphingosine | 1.0 | ||
| S. sanguinis | Phytosphingosine | 0.5 | 1.00 |
| Sphingosine | 0.5 | ||
| Sapienic Acid | 0.5 | ||
| S. mitis | Phytosphingosine | 24.0 | 0.0036c |
| Sphingosine | 6.0 | ||
| Lauric Acid | 1.0 | ||
| C. striatum | Phytosphingosine | 3.0 | 0.0036c |
| Sphingosine | 4.0 | ||
| Lauric Acid | 0.5 |
a
Time-to-zero comparisons for each bacterial species are shown, along with significance probabilities for each compared group. Comparisons were made without the control group, as the control samples did not produce zero values.
b
Significance probabilities are associated with the exact nonparametric Kruskal-Wallis test of the null hypothesis that the distribution of time to zero is the same across all treatment groups with a specified bacterial species.
c
Significance at the 0.05 level.