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Each row is one question a systematic review asked: who, what, compared with what, and which outcome, with the effect it found and how certain that is. Words match anywhere in the field.

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Intervention or exposure

Comparison

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Review versions

15 questions in 4 reviews · Methodology

current versions

No studies 15 · 100%Ungraded 0 · 0%Very low 0 · 0%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Question	Effect	Evidence	Status / GRADE
Summary of findings. Peer reviewer training vs standard journal practice or no training Bibliometric scores · peer reviewers Reviewer training for improving grant and journal peer review (2023) · Cochrane	no estimate extracted	NR	No studies
Intervention NR Wait‐list compared with no‐treatment · patients with mental health disorders Control interventions in randomised trials among people with mental health disorders (2022) · Cochrane	no estimate extracted	NR	No studies
Intervention NR Serious adverse events for all placebos · patients with mental health disorders Control interventions in randomised trials among people with mental health disorders (2022) · Cochrane	no estimate extracted	NR	No studies
Intervention NR Non‐serious adverse events for all placebos · patients with mental health disorders Control interventions in randomised trials among people with mental health disorders (2022) · Cochrane	no estimate extracted	NR	No studies
Questionnaire design: short vs usual questionnaire Retention [ · trial participants being followed up for data collection Strategies to improve retention in randomised trials (2021) · Cochrane	no estimate extracted	NR	No studies
Central and local monitoring only vs central and local monitoring with on‐site visits Impact of the monitoring strategy on participant recruitment · clinical trials in all fields of health care Monitoring strategies for clinical intervention studies (2021) · Cochrane	no estimate extracted	NR	No studies
Remote or targeted source data verification vs 100% source data verification Impact of the monitoring strategy on participant recruitment · clinical trials in all fields of health care Monitoring strategies for clinical intervention studies (2021) · Cochrane	no estimate extracted	NR	No studies
Remote or targeted source data verification vs 100% source data verification Impact of the monitoring strategy on · clinical trials in all fields of health care Monitoring strategies for clinical intervention studies (2021) · Cochrane	no estimate extracted	NR	No studies
Monitoring with vs without initiation visit Monitoring findings · clinical trials in all fields of health care Monitoring strategies for clinical intervention studies (2021) · Cochrane	no estimate extracted	NR	No studies
Risk‐based vs extensive on‐site monitoring Impact of the monitoring strategy on participant on recruitment · clinical trials in all fields of health care Monitoring strategies for clinical intervention studies (2021) · Cochrane	no estimate extracted	NR	No studies
Monitoring with vs without initiation visit Effect of the monitoring strategy on resource use · clinical trials in all fields of health care Monitoring strategies for clinical intervention studies (2021) · Cochrane	no estimate extracted	NR	No studies
Risk‐based vs extensive on‐site monitoring Impact of the monitoring strategy on · clinical trials in all fields of health care Monitoring strategies for clinical intervention studies (2021) · Cochrane	no estimate extracted	NR	No studies
Central monitoring with triggered vs untriggered on‐site visits Impact of the monitoring strategy on participant recruitment · clinical trials in all fields of health care Monitoring strategies for clinical intervention studies (2021) · Cochrane	no estimate extracted	NR	No studies
Central monitoring with triggered vs untriggered on‐site visits Impact of the monitoring strategy on · clinical trials in all fields of health care Monitoring strategies for clinical intervention studies (2021) · Cochrane	no estimate extracted	NR	No studies
Central monitoring with triggered vs untriggered on‐site visits Effect of the monitoring strategy on resource use · clinical trials in all fields of health care Monitoring strategies for clinical intervention studies (2021) · Cochrane	no estimate extracted	NR	No studies