Table 5 High Volume Suction (HVE) versus Low Volume Suction (LVE) in reducing the level of aerosol contamination
Certainty assessment | Number of patients | Efect | Certainty | Importance | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Number of studies | Study design | Risk of bias | Inconsistency | Indirect evidence | Imprecision | Other considerations | High volume evacuation (HVE) | Low volume evacuation (LVE) | Relative (95% IC) | Absolute (95% IC) | ||
Distance less than or equal to 50 cm from the oral cavity | ||||||||||||
3 | Randomized clinical trials | not serious | seriousa | not serious | seriousb | none | 98 | 98 | - | mean 0.71 higher (0.95 lower to 2.37 higher) | ⨁⨁◯◯ Low | IMPORTANT |