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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)

987 questions in 78 reviews · Haematology

current versions
No studies 256 · 25.9%Ungraded 64 · 6.5%Very low 207 · 21%Low 247 · 25%Moderate 163 · 16.5%High 50 · 5.1%

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
Summary of findings table ‐ Convalescent plasma vs standard plasma
Quality of life, · individuals with moderate to severe disease
Convalescent plasma for people with COVID‐19: a living systematic review (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Convalescent plasma vs standard plasma
Grades 3 and 4 adverse events · individuals with moderate to severe disease
Convalescent plasma for people with COVID‐19: a living systematic review (2023) · Cochrane
no estimate extracted1 study · 248 participantsVery low
Summary of findings table ‐ Convalescent plasma vs standard plasma
Serious adverse events · individuals with moderate to severe disease
Convalescent plasma for people with COVID‐19: a living systematic review (2023) · Cochrane
RR 0.8 [0.55, 1.15]3 studies · 327 participantsVery low
Summary of findings table ‐ Convalescent plasma vs human immunoglobulin
All‐cause mortality at up to day 28 · individuals with moderate to severe disease
Convalescent plasma for people with COVID‐19: a living systematic review (2023) · Cochrane
RR 1.07 [0.76, 1.5]1 study · 190 participantsLow
Summary of findings table ‐ Convalescent plasma vs human immunoglobulin
Clinical worsening: need for invasive mechanical ventilation, or death at up to day 28 ‐ not reported · individuals with moderate to severe disease
Convalescent plasma for people with COVID‐19: a living systematic review (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Convalescent plasma vs human immunoglobulin
Clinical improvement: participants discharged from hospital ‐ not reported · individuals with moderate to severe disease
Convalescent plasma for people with COVID‐19: a living systematic review (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Convalescent plasma vs human immunoglobulin
Quality of life ‐ not reported · individuals with moderate to severe disease
Convalescent plasma for people with COVID‐19: a living systematic review (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Convalescent plasma vs human immunoglobulin
Grades 3 and 4 adverse events ‐ not reported · individuals with moderate to severe disease
Convalescent plasma for people with COVID‐19: a living systematic review (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Convalescent plasma vs human immunoglobulin
Serious adverse events ‐ not reported · individuals with moderate to severe disease
Convalescent plasma for people with COVID‐19: a living systematic review (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Convalescent plasma vs placebo or standard care alone
All‐cause mortality at up to day 28 · outpatients withmild disease
Convalescent plasma for people with COVID‐19: a living systematic review (2023) · Cochrane
OR 0.36 [0.09, 1.46]2 studies · 536 participantsVery low
Summary of findings table ‐ Convalescent plasma vs placebo or standard care alone
Clinical worsening: need for invasive mechanical ventilation, or death at up to day 28 · individualswith moderate to severe disease
Convalescent plasma for people with COVID‐19: a living systematic review (2023) · Cochrane
RR 1.03 [0.97, 1.11]6 studies · 14477 participantsHigh
Summary of findings table ‐ Convalescent plasma vs placebo or standard care alone
Admission to hospital or death within 28 days · outpatients withmild disease
Convalescent plasma for people with COVID‐19: a living systematic review (2023) · Cochrane
RR 1.05 [0.6, 1.84]1 study · 376 participantsLow
Summary of findings table ‐ Convalescent plasma vs placebo or standard care alone
Symptom resolution‐ all initial symptoms resolved ‐ not reported · outpatients withmild disease
Convalescent plasma for people with COVID‐19: a living systematic review (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Convalescent plasma vs placebo or standard care alone
Time to symptom resolution (absolute effect calculated for day 12) · outpatients withmild disease
Convalescent plasma for people with COVID‐19: a living systematic review (2023) · Cochrane
HR 1.05 [0.85, 1.3]1 study · 376 participantsLow
Summary of findings table ‐ Convalescent plasma vs placebo or standard care alone
Quality of life, · outpatients withmild disease
Convalescent plasma for people with COVID‐19: a living systematic review (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Convalescent plasma vs placebo or standard care alone
Grades 3 and 4 adverse events · outpatients withmild disease
Convalescent plasma for people with COVID‐19: a living systematic review (2023) · Cochrane
RR 1.29 [0.75, 2.19]1 study · 376 participantsLow
Summary of findings table ‐ Convalescent plasma vs placebo or standard care alone
Serious adverse events · outpatients withmild disease
Convalescent plasma for people with COVID‐19: a living systematic review (2023) · Cochrane
RR 1.14 [0.66, 1.94]1 study · 376 participantsLow
Summary of findings table ‐ Convalescent plasma vs standard plasma
All‐cause mortality at up to day 28 · outpatients withmild disease
Convalescent plasma for people with COVID‐19: a living systematic review (2023) · Cochrane
OR 0.3 [0.05, 1.75]2 studies · 1597 participantsVery low
Summary of findings table ‐ Convalescent plasma vs standard plasma
Admission to hospital or death within 28 days · outpatients withmild disease
Convalescent plasma for people with COVID‐19: a living systematic review (2023) · Cochrane
RR 0.49 [0.31, 0.75]2 studies · 1595 participantsModerate
Summary of findings table ‐ Convalescent plasma vs standard plasma
Symptom resolution‐ all initial symptoms resolved · outpatients withmild disease
Convalescent plasma for people with COVID‐19: a living systematic review (2023) · Cochrane
RR 1.12 [0.98, 1.27]1 study · 416 participantsLow
Summary of findings table ‐ Convalescent plasma vs standard plasma
Time to symptom resolution ‐ not reported · outpatients withmild disease
Convalescent plasma for people with COVID‐19: a living systematic review (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Convalescent plasma vs placebo or standard care alone
Clinical improvement: participants discharged from hospital · individualswith moderate to severe disease
Convalescent plasma for people with COVID‐19: a living systematic review (2023) · Cochrane
RR 1 [0.97, 1.02]6 studies · 12721 participantsHigh
Summary of findings table ‐ Convalescent plasma vs standard plasma
Quality of life, · outpatients withmild disease
Convalescent plasma for people with COVID‐19: a living systematic review (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Convalescent plasma vs standard plasma
Grades 3 and 4 adverse events ‐ not reported · outpatients withmild disease
Convalescent plasma for people with COVID‐19: a living systematic review (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Convalescent plasma vs standard plasma
Serious adverse events ‐ not reported · outpatients withmild disease
Convalescent plasma for people with COVID‐19: a living systematic review (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Convalescent plasma vs placebo or standard care alone
Quality of life, · individualswith moderate to severe disease
Convalescent plasma for people with COVID‐19: a living systematic review (2023) · Cochrane
no estimate extracted1 study · 483 participantsLow
Summary of findings table ‐ Convalescent plasma vs placebo or standard care alone
Grades 3 and 4 adverse events · individualswith moderate to severe disease
Convalescent plasma for people with COVID‐19: a living systematic review (2023) · Cochrane
RR 1.17 [0.96, 1.42]6 studies · 2392 participantsLow
Summary of findings table ‐ Convalescent plasma vs placebo or standard care alone
Serious adverse events ‐ total · individualswith moderate to severe disease
Convalescent plasma for people with COVID‐19: a living systematic review (2023) · Cochrane
RR 1.14 [0.91, 1.44]6 studies · 3901 participantsModerate
Summary of findings table ‐ Convalescent plasma vs standard plasma
All‐cause mortality at up to day 28 · individuals with moderate to severe disease
Convalescent plasma for people with COVID‐19: a living systematic review (2023) · Cochrane
RR 0.73 [0.45, 1.19]4 studies · 484 participantsVery low
Summary of findings table ‐ Convalescent plasma vs standard plasma
Clinical worsening: need for invasive mechanical ventilation, or death at up to day 28 · individuals with moderate to severe disease
Convalescent plasma for people with COVID‐19: a living systematic review (2023) · Cochrane
RR 5.59 [0.29, 108.38]1 study · 34 participantsVery low
Summary of findings table ‐ Convalescent plasma vs standard plasma
Clinical improvement: participants discharged from hospital ‐ not reported · individuals with moderate to severe disease
Convalescent plasma for people with COVID‐19: a living systematic review (2023) · Cochrane
no estimate extractedNRNo studies
Remdesivir and standard care vs standard care (plus/minus placebo)
All‐cause mortality at up to day 281 · hospitalised adults with moderate to severe COVID‐19
Remdesivir for the treatment of COVID‐19 (2023) · Cochrane
RR 0.93 [0.81, 1.06]4 studies · 7142 participantsModerate
Remdesivir and standard care vs standard care (plus/minus placebo)
Clinical worsening: participants admitted to hospital or deceased at up to day 28 · non‐hospitalised adults with mild COVID‐19
Remdesivir for the treatment of COVID‐19 (2023) · Cochrane
RR 0.28 [0.11, 0.75]1 study · 562 participantsModerate
Remdesivir and standard care vs standard care (plus/minus placebo)
Quality of life · non‐hospitalised adults with mild COVID‐19
Remdesivir for the treatment of COVID‐19 (2023) · Cochrane
no estimate extractedNRNo studies
Remdesivir and standard care vs standard care (plus/minus placebo)
Serious adverse events at up to day 28 · non‐hospitalised adults with mild COVID‐19
Remdesivir for the treatment of COVID‐19 (2023) · Cochrane
RR 0.27 [0.1, 0.7]1 study · 562 participantsLow
Remdesivir and standard care vs standard care (plus/minus placebo)
Adverse events (any grade) at up to day 28 · non‐hospitalised adults with mild COVID‐19
Remdesivir for the treatment of COVID‐19 (2023) · Cochrane
RR 0.91 [0.76, 1.1]1 study · 562 participantsModerate
Remdesivir and standard care vs standard care (plus/minus placebo)
All‐cause mortality at up to day 60 · hospitalised adults with moderate to severe COVID‐19
Remdesivir for the treatment of COVID‐19 (2023) · Cochrane
RR 0.85 [0.69, 1.05]1 study · 1281 participantsModerate
Remdesivir and standard care vs standard care (plus/minus placebo)
In‐hospital mortality at up to day 150 · hospitalised adults with moderate to severe COVID‐19
Remdesivir for the treatment of COVID‐19 (2023) · Cochrane
RR 0.93 [0.84, 1.03]1 study · 8275 participantsModerate
Remdesivir and standard care vs standard care (plus/minus placebo)
Clinical improvement: participants alive and ready to be discharged at up to day 282 · hospitalised adults with moderate to severe COVID‐19
Remdesivir for the treatment of COVID‐19 (2023) · Cochrane
RR 1.11 [1.06, 1.17]4 studies · 2514 participantsModerate
Remdesivir and standard care vs standard care (plus/minus placebo)
Clinical worsening: time to new need for invasive mechanical ventilation or death within 28 days3 · hospitalised adults with moderate to severe COVID‐19
Remdesivir for the treatment of COVID‐19 (2023) · Cochrane
HR 0.67 [0.54, 0.82]2 studies · 1734 participantsModerate
Remdesivir and standard care vs standard care (plus/minus placebo)
Adverse events (any grade) at up to day 28 · hospitalised adults with moderate to severe COVID‐19
Remdesivir for the treatment of COVID‐19 (2023) · Cochrane
RR 1.04 [0.92, 1.18]4 studies · 2498 participantsLow
Remdesivir and standard care vs standard care (plus/minus placebo)
Serious adverse events at up to day 28 · hospitalised adults with moderate to severe COVID‐19
Remdesivir for the treatment of COVID‐19 (2023) · Cochrane
RR 0.84 [0.65, 1.07]4 studies · 2498 participantsLow
Remdesivir and standard care vs standard care (plus/minus placebo)
All‐cause mortality at up to day 28 · non‐hospitalised adults with mild COVID‐19
Remdesivir for the treatment of COVID‐19 (2023) · Cochrane
no estimate extracted1 study · 562 participantsUngraded
Remdesivir and standard care vs standard care (plus/minus placebo)
Clinical improvement: participants with symptom alleviation at up to day 14 · non‐hospitalised adults with mild COVID‐19
Remdesivir for the treatment of COVID‐19 (2023) · Cochrane
HR 1.41 [0.73, 2.71]1 study · 126 participantsVery low
Intervention NR
28‐day all‐cause mortality · hospitalised adults with COVID‐19 (moderate to severe disease)
Antiplatelet agents for the treatment of adults with COVID‐19 (2023) · Cochrane
RR 0.953 studies · 17249 participantsModerate
Intervention NR
Quality of life up to longest · non‐hospitalised adults with mild COVID‐19
Antiplatelet agents for the treatment of adults with COVID‐19 (2023) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Thrombotic events up to day 45 · non‐hospitalised adults with mild COVID‐19
Antiplatelet agents for the treatment of adults with COVID‐19 (2023) · Cochrane
Peto OR 0.37 [0.09, 1.46]2 studies · 4209 participantsLow
Intervention NR
Adverse events during study treatment · non‐hospitalised adults with mild COVID‐19
Antiplatelet agents for the treatment of adults with COVID‐19 (2023) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Serious adverse events up to day 45 · non‐hospitalised adults with mild COVID‐19
Antiplatelet agents for the treatment of adults with COVID‐19 (2023) · Cochrane
Peto OR 1 [0.6, 1.64]1 study · 3881 participantsLow
Intervention NR
Major bleeding events up to longest · non‐hospitalised adults with mild COVID‐19
Antiplatelet agents for the treatment of adults with COVID‐19 (2023) · Cochrane
no estimate extracted1 study · 328 participantsVery low