Table 2.
Quality assessment of studies.
| Criteria | First Author | |||||
|---|---|---|---|---|---|---|
| Birang et al. [30] | Caccianiga et al. [31] | Persson et al. [32] | Arisan et al. [33] | Yoshino et al. [34] | Bassetti et al. [14] | |
| Population representativeness in the treatment group (average of the population) | 1 | 1 | 1 | 1 | 0 | 1 |
| Comparability of the baseline and the outcome parameters | 1 | 1 | 1 | 1 | 1 | 1 |
| Accuracy of the microbial genome evaluation technique | 1 | 1 | 0 | 0 | 0 | 1 |
| Randomization | 1 | 0 | 1 | 0 | 0 | 0 |
| Adequate follow-up (for outcomes to occur) | 1 | 1 | 1 | 1 | 1 | 1 |
| Acceptable follow-up loss (complete follow-up, subjects lost to follow-up unlikely to introduce bias) | 1 | 1 | 1 | 1 | 1 | 1 |
| Total | 6 | 5 | 5 | 4 | 3 | 5 |