Criteria

High risk of bias

Low risk of bias

Unclear/other

Sample

Clinical

Population

Unclear

Recruitment

Retrospective

Prospective

Unclear

Selection criteria for participants

No

Yes

Unclear

Baseline characteristics of participants

No

Yes

Unclear

Follow‐up percentage

(if RCT)

< 80%

≥ 80%

Unclear

Not applicable

Follow‐up duration

< 1 year

≥ 1 year

Unclear

Reason lost to follow‐up

No

Yes

Unclear

Timing of diagnosis

At the conclusion of the study

At baseline or before recruitment to study

Unclear

Blinding

Not blinded

Blinding adequate

Unclear

Outcome described a priori

No

Yes

Unclear

Intention‐to‐treat analysis (if RCT)

No

Yes

Unclear

Not applicable

Adequate description of statistical analysis

No

Yes

Unclear