Table 3 Analysis of certainty of evidence.
Follow-up period | Evaluation criteria | No. of studies common to both criteria | |
|---|---|---|---|
USPHS (No. of studies included) | FDI (No. of studies included) | ||
18 months | Moderate (7) | High (5) | 4 |
24 month | Low (4) | Moderate (2) | 0 |
36 months | Low (4) | High (1) | 1 |
