Table 3.
Quality assessment of included studies
| Study |
Random selection in the population |
Definition of inclusion and exclusion criteria |
Report of losses to follow-up |
Validated measurements |
Statistical analysis |
Risk of bias |
|---|---|---|---|---|---|---|
| Froum et al. [16] | Yes | Yes | No | Yes | No | High |
| Tarnow et al. [17] | Yes | Yes | No | Yes | No | High |
| Tawil et al. [24] | Yes | Yes | No | Yes | No | High |
| Wallace et al. [25] | No | Yes | No | Yes | No | High |
| Choi et al. [26] | Yes | Yes | Yes | Yes | Yes | Low |
| Barone et al. [27] | Yes | Yes | Yes | Yes | Yes | Low |
| García-Denche et al. [28] | Yes | Yes | No | Yes | Yes | Moderate |