№ of studies | Study design | Risk of bias | Inconsistency | Indirectness | Imprecision | Other considerations |
Certainty (overall score) |
Costs | |||||||
1 | Controlled before‐after study | Very serious risk of bias (‐2) |
No serious inconsistency (0) |
No serious indirectness (0) |
No serious imprecision (0) |
None | ⨁◯◯◯ Very low |