Table 2 Risk of bias assessment for clinical studies
From: Systematic review on diabetes mellitus and dental implants: an update
Risk of bias assessment | Cochrane risk of bias tool I | New Castle–Ottawa Scale | Based on Moga et al. (2012) | Number of studies |
|---|---|---|---|---|
High risk of bias | < 3 | < 4 | < 2 | 4 |
Moderate risk of bias | 3–5 | 4–6 | 2–3 | 9 |
Low risk of bias | 6–8 | 7–9 | 4 | 26 |