Table 5. Linear Regression Model of LNCFUs AT in Columbia Blood Agar Plates in Relation to LNCFUs BT, Time Between Samples, and Treatment Groups .
| Columbia Blood Agar (LNCFUs AT) | Coefficient (β) | Mean Ratio | 95% CI Lower | 95% CI Upper | P Value | |
|---|---|---|---|---|---|---|
| Columbia Blood Agar (LNCFUs BT) | 0.38 | 1.47 | 0.07 | 0.70 | 0.018* | |
| Time between samples | 1.33 | 3.76 | 0.80 | 1.85 | < 0.001* | |
| Laser | Group C | 1 | ||||
| Group A | -1.55 | 0.21 | -3.91 | 0.82 | 0.210 | |
| Group B | -2.73 | 0.07 | -4.36 | -1.09 | 0.001* |
LNCFUs AT, Neperian logarithm of colony-forming units after treatment; LNCFUs BT, Neperian logarithm of colony-forming units before treatment.
*Statistically significant