Table 1 Grading of recommendations, assessment, development and evaluation (GRADE)
From: Treatment approaches for idiopathic retroperitoneal fibrosis: a systematic review with meta-analysis
Outcome | Study design | Risk of bias | Inconsistency | Indirectness | Imprecision | Other considerations | Certainty |
|---|---|---|---|---|---|---|---|
ROF | Observational studies | serious | serious | serious | serious | publication bias | very low |
FUS | Observational studies | serious | serious | serious | serious | publication bias | very low |
Relapse rate | Observational studies | serious | serious | not serious | serious | publication bias | very low |
Clinical improvement | Observational studies | serious | serious | not serious | serious | publication bias | very low |