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Search review questions

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.

Limit to evidence status or GRADE (optional)

915 questions in 93 reviews · Emergency and Critical Care

current versions
No studies 141 · 15.4%Ungraded 22 · 2.4%Very low 216 · 23.6%Low 272 · 29.7%Moderate 188 · 20.5%High 76 · 8.3%

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.

QuestionEffectEvidenceStatus / GRADE
Olokizumab vs standard care/placebo
WHO progression score (level 7 or above) D28 ‐ not reported · people with mild/moderate/severe/critical COVID‐19
Interleukin‐6 blocking agents for treating COVID‐19: a living systematic review (2023) · Cochrane
no estimate extractedNRNo studies
Olokizumab vs standard care/placebo
All‐cause mortality D28 · people with mild/moderate/severe/critical COVID‐19
Interleukin‐6 blocking agents for treating COVID‐19: a living systematic review (2023) · Cochrane
RR 1.5 [0.55, 4.09]1 study · 248 participantsVery low
Olokizumab vs standard care/placebo
All‐cause mortality D60 or more ‐ not reported · people with mild/moderate/severe/critical COVID‐19
Interleukin‐6 blocking agents for treating COVID‐19: a living systematic review (2023) · Cochrane
no estimate extractedNRNo studies
Olokizumab vs standard care/placebo
Adverse events ‐ not reported · people with mild/moderate/severe/critical COVID‐19
Interleukin‐6 blocking agents for treating COVID‐19: a living systematic review (2023) · Cochrane
no estimate extractedNRNo studies
Olokizumab vs standard care/placebo
Serious adverse events ( · people with mild/moderate/severe/critical COVID‐19
Interleukin‐6 blocking agents for treating COVID‐19: a living systematic review (2023) · Cochrane
RR 1.25 [0.51, 3.06]1 study · 248 participantsVery low
Siltuximab vs standard care/placebo
Clinical improvement D28b · people with mild/moderate/severe/critical COVID‐19
Interleukin‐6 blocking agents for treating COVID‐19: a living systematic review (2023) · Cochrane
RR 0.97 [0.79, 1.18]1 study · 148 participantsVery low
Tociliuzumab vs standard care/placebo
WHO progression score (level 7 or above) D28 · people with mild/moderate/severe/critical COVID‐19
Interleukin‐6 blocking agents for treating COVID‐19: a living systematic review (2023) · Cochrane
RR 0.9 [0.72, 1.12]13 studies · 2117 participantsLow
Siltuximab vs standard care/placebo
Clinical improvement D60 or more ‐ not reported · people with mild/moderate/severe/critical COVID‐19
Interleukin‐6 blocking agents for treating COVID‐19: a living systematic review (2023) · Cochrane
no estimate extractedNRNo studies
Siltuximab vs standard care/placebo
WHO progression score (level 7 or above) D28 · people with mild/moderate/severe/critical COVID‐19
Interleukin‐6 blocking agents for treating COVID‐19: a living systematic review (2023) · Cochrane
RR 1.97 [1.07, 3.63]1 study · 148 participantsLow
Siltuximab vs standard care/placebo
All‐cause mortality D28 · people with mild/moderate/severe/critical COVID‐19
Interleukin‐6 blocking agents for treating COVID‐19: a living systematic review (2023) · Cochrane
RR 1.35 [0.54, 3.36]1 study · 148 participantsVery low
Siltuximab vs standard care/placebo
All‐cause mortality D60 or more · people with mild/moderate/severe/critical COVID‐19
Interleukin‐6 blocking agents for treating COVID‐19: a living systematic review (2023) · Cochrane
RR 1.58 [0.74, 3.38]1 study · 148 participantsVery low
Siltuximab vs standard care/placebo
Adverse events ‐ not reported · people with mild/moderate/severe/critical COVID‐19
Interleukin‐6 blocking agents for treating COVID‐19: a living systematic review (2023) · Cochrane
no estimate extractedNRNo studies
Siltuximab vs standard care/placebo
Serious adverse events ( · people with mild/moderate/severe/critical COVID‐19
Interleukin‐6 blocking agents for treating COVID‐19: a living systematic review (2023) · Cochrane
RR 1.29 [0.64, 2.62]1 study · 148 participantsLow
Levilimab vs standard care/placebo
Clinical improvement D28b · people with mild/moderate/severe/critical COVID‐19
Interleukin‐6 blocking agents for treating COVID‐19: a living systematic review (2023) · Cochrane
RR 1.53 [1.26, 1.85]1 study · 206 participantsLow
Levilimab vs standard care/placebo
Clinical improvement D60 or more ‐ not reported · people with mild/moderate/severe/critical COVID‐19
Interleukin‐6 blocking agents for treating COVID‐19: a living systematic review (2023) · Cochrane
no estimate extractedNRNo studies
Levilimab vs standard care/placebo
WHO progression score (level 7 or above) D28 ‐ not reported · people with mild/moderate/severe/critical COVID‐19
Interleukin‐6 blocking agents for treating COVID‐19: a living systematic review (2023) · Cochrane
no estimate extractedNRNo studies
Levilimab vs standard care/placebo
All‐cause mortality D28 · people with mild/moderate/severe/critical COVID‐19
Interleukin‐6 blocking agents for treating COVID‐19: a living systematic review (2023) · Cochrane
RR 1 [0.26, 3.89]1 study · 206 participantsVery low
Tociliuzumab vs standard care/placebo
All‐cause mortality D28 · people with mild/moderate/severe/critical COVID‐19
Interleukin‐6 blocking agents for treating COVID‐19: a living systematic review (2023) · Cochrane
RR 0.88 [0.81, 0.94]18 studies · 7428 participantsHigh
Levilimab vs standard care/placebo
All‐cause mortality D60 or more · people with mild/moderate/severe/critical COVID‐19
Interleukin‐6 blocking agents for treating COVID‐19: a living systematic review (2023) · Cochrane
RR 1 [0.26, 3.89]1 study · 206 participantsVery low
Levilimab vs standard care/placebo
Adverse events ( · people with mild/moderate/severe/critical COVID‐19
Interleukin‐6 blocking agents for treating COVID‐19: a living systematic review (2023) · Cochrane
RR 1.17 [0.73, 1.87]1 study · 206 participantsLow
Levilimab vs standard care/placebo
Serious adverse events ( · people with mild/moderate/severe/critical COVID‐19
Interleukin‐6 blocking agents for treating COVID‐19: a living systematic review (2023) · Cochrane
RR 0.5 [0.05, 5.43]1 study · 206 participantsLow
Tociliuzumab vs standard care/placebo
All‐cause mortality D60 or more · people with mild/moderate/severe/critical COVID‐19
Interleukin‐6 blocking agents for treating COVID‐19: a living systematic review (2023) · Cochrane
RR 0.91 [0.8, 1.04]9 studies · 2775 participantsLow
Tociliuzumab vs standard care/placebo
Adverse events ( · people with mild/moderate/severe/critical COVID‐19
Interleukin‐6 blocking agents for treating COVID‐19: a living systematic review (2023) · Cochrane
RR 1.03 [0.95, 1.12]9 studies · 1811 participantsModerate
Tociliuzumab vs standard care/placebo
Serious adverse events ( · people with mild/moderate/severe/critical COVID‐19
Interleukin‐6 blocking agents for treating COVID‐19: a living systematic review (2023) · Cochrane
RR 0.93 [0.81, 1.07]16 studies · 2974 participantsVery low
Sarilumab vs standard care/placebo
Clinical improvement D28b · people with mild/moderate/severe/critical COVID‐19
Interleukin‐6 blocking agents for treating COVID‐19: a living systematic review (2023) · Cochrane
RR 0.99 [0.94, 1.05]7 studies · 2425 participantsModerate
Sarilumab vs standard care/placebo
Clinical improvement D60 or moree · people with mild/moderate/severe/critical COVID‐19
Interleukin‐6 blocking agents for treating COVID‐19: a living systematic review (2023) · Cochrane
RR 1.22 [0.91, 1.63]2 studies · 239 participantsVery low
Higher‐dose anticoagulants vs lower‐dose anticoagulants
All‐cause mortality · people hospitalised with COVID‐19
Anticoagulants for people hospitalised with COVID‐19: a rapid review (2022) · Cochrane
RR 1.03 [0.92, 1.16]4 studies · 4489 participantsHigh
Anticoagulants vs no treatment
Mortality related to COVID‐19 · people hospitalised with COVID‐19
Anticoagulants for people hospitalised with COVID‐19: a rapid review (2022) · Cochrane
no estimate extractedNRNo studies
Anticoagulants vs no treatment
Deep vein thrombosis · people hospitalised with COVID‐19
Anticoagulants for people hospitalised with COVID‐19: a rapid review (2022) · Cochrane
RR 5.67 [1.3, 24.7]1 study · 1403 participantsVery low
Anticoagulants vs no treatment
Pulmonary embolism · people hospitalised with COVID‐19
Anticoagulants for people hospitalised with COVID‐19: a rapid review (2022) · Cochrane
RR 24.19 [3.31, 176.53]1 study · 1403 participantsVery low
Anticoagulants vs no treatment
Major bleeding · people hospitalised with COVID‐19
Anticoagulants for people hospitalised with COVID‐19: a rapid review (2022) · Cochrane
RR 1.19 [0.66, 2.12]2 studies · 7218 participantsVery low
Anticoagulants vs no treatment
Adverse events (minor bleeding) · people hospitalised with COVID‐19
Anticoagulants for people hospitalised with COVID‐19: a rapid review (2022) · Cochrane
no estimate extractedNRNo studies
Higher‐dose anticoagulants vs lower‐dose anticoagulants
Necessity for additional respiratory support · people hospitalised with COVID‐19
Anticoagulants for people hospitalised with COVID‐19: a rapid review (2022) · Cochrane
RR 0.54 [0.12, 2.47]3 studies · 3407 participantsVery low
Higher‐dose anticoagulants vs lower‐dose anticoagulants
Mortality related to COVID‐19 · people hospitalised with COVID‐19
Anticoagulants for people hospitalised with COVID‐19: a rapid review (2022) · Cochrane
no estimate extractedNRNo studies
Higher‐dose anticoagulants vs lower‐dose anticoagulants
Deep vein thrombosis · people hospitalised with COVID‐19
Anticoagulants for people hospitalised with COVID‐19: a rapid review (2022) · Cochrane
RR 1.08 [0.57, 2.03]4 studies · 3422 participantsLow
Higher‐dose anticoagulants vs lower‐dose anticoagulants
Pulmonary embolism · people hospitalised with COVID‐19
Anticoagulants for people hospitalised with COVID‐19: a rapid review (2022) · Cochrane
RR 0.46 [0.31, 0.7]4 studies · 4360 participantsModerate
Higher‐dose anticoagulants vs lower‐dose anticoagulants
Major bleeding · people hospitalised with COVID‐19
Anticoagulants for people hospitalised with COVID‐19: a rapid review (2022) · Cochrane
RR 1.78 [1.13, 2.8]4 studies · 4400 participantsModerate
Higher‐dose anticoagulants vs lower‐dose anticoagulants
Adverse events (minor bleeding) · people hospitalised with COVID‐19
Anticoagulants for people hospitalised with COVID‐19: a rapid review (2022) · Cochrane
RR 3.28 [1.75, 6.14]3 studies · 1196 participantsHigh
Anticoagulants vs no treatment
All‐cause mortality · people hospitalised with COVID‐19
Anticoagulants for people hospitalised with COVID‐19: a rapid review (2022) · Cochrane
RR 0.64 [0.55, 0.74]3 studies · 8395 participantsVery low
Anticoagulants vs no treatment
Necessity for additional respiratory support · people hospitalised with COVID‐19
Anticoagulants for people hospitalised with COVID‐19: a rapid review (2022) · Cochrane
no estimate extractedNRNo studies
Anakinra vs standard care/placebo
Clinical improvement D28
Interleukin‐1 blocking agents for treating COVID‐19 (2022) · Cochrane
RR 1.08 [0.97, 1.2]3 studies · 837 participantsModerate
Anakinra vs standard care/placebo
Time to WHO Clinical Progression Score of level 7 or above
Interleukin‐1 blocking agents for treating COVID‐19 (2022) · Cochrane
HR 0.69 [0.48, 0.99]2 studies · 722 participantsLow
Anakinra vs standard care/placebo
Time to death
Interleukin‐1 blocking agents for treating COVID‐19 (2022) · Cochrane
HR 0.8 [0.59, 1.08]3 studies · 1518 participantsLow
Canakinumab vs standard care/placebo
Clinical improvement D28
Interleukin‐1 blocking agents for treating COVID‐19 (2022) · Cochrane
RR 1.05 [0.96, 1.14]2 studies · 499 participantsModerate
Canakinumab vs standard care/placebo
Clinical improvement D60 or above
Interleukin‐1 blocking agents for treating COVID‐19 (2022) · Cochrane
no estimate extractedNRNo studies
Canakinumab vs standard care/placebo
WHO Clinical Progression Score of level 7 or above D28
Interleukin‐1 blocking agents for treating COVID‐19 (2022) · Cochrane
RR 0.72 [0.44, 1.2]2 studies · 499 participantsLow
Canakinumab vs standard care/placebo
WHO Clinical Progression Score of level 7 or above D60 or above
Interleukin‐1 blocking agents for treating COVID‐19 (2022) · Cochrane
no estimate extractedNRNo studies
Canakinumab vs standard care/placebo
All‐cause mortality D28
Interleukin‐1 blocking agents for treating COVID‐19 (2022) · Cochrane
RR 0.75 [0.39, 1.42]2 studies · 499 participantsLow
Canakinumab vs standard care/placebo
All‐cause mortality D60 or above
Interleukin‐1 blocking agents for treating COVID‐19 (2022) · Cochrane
RR 0.55 [0.16, 1.91]1 study · 45 participantsVery low
Canakinumab vs standard care/placebo
Adverse events
Interleukin‐1 blocking agents for treating COVID‐19 (2022) · Cochrane
RR 1.02 [0.86, 1.21]1 study · 454 participantsModerate