Table 1. Comparison between groups for total relative light unit and by locations for logged data.
| Location | Mean | Difference | Reduction (%) a | 95% CI | p -Value |
|---|---|---|---|---|---|
| All | |||||
| Abbreviations: CI, confidence interval; GM, geometric means; OBF, Oral BioFilter. a Reduction: (ratio of GM − 1) × 100. | |||||
| OBF | 6.62 | −4.15 | 98.4 | 97.4–99.0 | <0.001 |
| Control | 10.77 | ||||
| Face shield | |||||
| OBF | 4.33 | −5.46 | 99.6 | 99.2–99.8 | <0.001 |
| Control | 9.79 | ||||
| Surgical glove | |||||
| OBF | 5.31 | −3.69 | 97.5 | 94.7–98.8 | <0.001 |
| Control | 9.00 | ||||
| Patient safety goggles | |||||
| OBF | 5.63 | −2.76 | 93.7 | 86.3–97.1 | <0.001 |
| Control | 8.39 | ||||
| Instrumental table | |||||
| OBF | 4.42 | −1.77 | 83.0 | 66.1–91.6 | <0.001 |
| Control | 6.19 | ||||