Table 3.
Mean colony-forming units in zones within treatment periods.∗
| TREATMENT PERIODS |
||||||||
|---|---|---|---|---|---|---|---|---|
| Baseline |
High-Volume Evacuation |
Combination |
Posttreatment |
|||||
| ZONE | Mean (SD†) | 95% CI | Mean (SD) | 95% CI | Mean (SD) | 95% CI | Mean (SD) | 95% CI |
| Zone 1 | ||||||||
| Operator | 2.68 (1.68) | 1.95 to 3.41 | 26.16 (33.00) | 19.45 to 32.87‡,§ | 18.84 (40.65) | 13.24 to 24.44‡,§,¶ | 3.10 (2.49) | 2.29 to 3.91 |
| Assistant | 1.61 (1.02) | 1.32 to 1.90 | 6.68 (5.06) | 5.19 to 8.17# | 4.23 (7.95) | 0.22 to 8.24¶,# | 2.61 (1.99) | 1.89 to 3.33 |
| Patient | 1.84 (1.68) | 1.25 to 2.43 | 441.61 (569.17) | 248.25 to 634.97‡,#,∗∗ | 158.71 (331.55) | 61.14 to 256.28‡,#,∗∗ | 2.00 (1.63) | 1.48 to 2.52 |
| Zone 2 | 2.94 (1.65) | 2.12 to 3.76 | 4.88 (2.96) | 3.77 to 5.99§,∗∗ | 1.94 (1.61) | 1.47 to 2.41§,∗∗ | 3.31 (3.28) | 2.21 to 4.41 |
| Zone 3 | 2.87 (2.26) | 2.02 to 3.72 | 5.47 (3.58) | 3.98 to 6.96∗∗ | 3.00 (1.77) | 2.68 to 3.32§,∗∗ | 2.20 (1.61) | 1.06 to 3.34 |
∗
Dwass-Steel-Critchlow-Fligner pairwise comparison was used to determine P values within treatment periods.
†
SD: Standard deviation.
‡
Statistically significant differences (P < .001) between operator and patient.
§
Statistically significant differences (P < .05) compared with zone 1, operator.
¶
Statistically significant differences (P < .001) between operator and assistant.
#
Statistically significant differences (P < .001) between assistant and patient.
∗∗
Statistically significant differences (P < .001) compared with zone 1, patient.