Risk of bias & certainty

Make evidence quality visible, not decorative.

Connect study-level risk-of-bias judgments with outcome-level certainty assessment so methodological limitations remain part of the interpretation.

Start a project Research standards

✓ ROB 2✓ QUADAS-2✓ GRADE-oriented workflow

Risk-of-bias overviewStudy level

Study A

Study B

Study C

Outcome certainty

★★★★

Moderate certainty

Method-appropriate tools

Use the quality framework that fits the evidence.

Risk-of-bias assessment should follow the study design and review question rather than a one-size-fits-all checklist.

ROB 2

Domain-based assessment for randomized intervention studies.

QUADAS-2

Diagnostic accuracy domains for patient selection, test interpretation, reference standard and flow/timing.

Observational evidence

Project-specific support for non-randomized and exposure/etiology evidence workflows.

Outcome-level certainty

Keep GRADE tied to the result being interpreted.

Certainty is an outcome-level judgment. Record the rationale for downgrading or upgrading decisions rather than attaching a generic confidence label to the whole review.

↓

Risk of biasBring methodological limitations into certainty assessment.

↔

Inconsistency & indirectnessInterpret heterogeneity and applicability in the context of the outcome.

Imprecision & reporting biasDocument uncertainty and possible dissemination bias transparently.

GRADE decisionRationale recorded

Certainty: Moderate — downgraded one level for imprecision. No additional downgrade for inconsistency.

12studies informing outcome

1downgrade applied

Bring your review into one connected workspace.

Start with citation screening and keep evidence, reviewer decisions, datasets and analysis connected from beginning to end.

Request a demo