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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.
611 questions in 50 reviews · Injuries
current versionsNo studies 125 · 20.5%Ungraded 22 · 3.6%Very low 185 · 30.3%Low 171 · 28%Moderate 77 · 12.6%High 31 · 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.
| Question | Effect | Evidence | Status / GRADE |
|---|---|---|---|
Intervention NR A reduction from 66% to 35% in the percentage of speeding drivers at experimental sites compared to before period. Speed cameras for the prevention of road traffic injuries and deaths (2010) · Cochrane | no estimate extracted | NR | Low |
Acetaminophen plus Diphenhydramine vs placebo Febrile reactions (fever with or without chills, chills with or without rigors) ‐ Intention‐to treat analysis · patients with requirement of prophylaxis to avoid allergic and febrile non‐haemolytic transfusion reactions Pharmacological interventions for the prevention of allergic and febrile non‐haemolytic transfusion reactions (2010) · Cochrane | RR 0.52 [0.21, 1.25] | 1 study · 334 participants | Low |
Acetaminophen plus Diphenhydrammine vs placebo (Unit of randomisation: transfusion) Adverse events · patients with requirement of prophylaxis to avoid allergic and febrile non‐haemolytic transfusion reactions Pharmacological interventions for the prevention of allergic and febrile non‐haemolytic transfusion reactions (2010) · Cochrane | RR 0 [0, 0] | 0 studies · 0 participants | Ungraded |
Acetaminophen plus Diphenhydramine vs placebo Anaphylatic reactions ‐ not reported · patients with requirement of prophylaxis to avoid allergic and febrile non‐haemolytic transfusion reactions Pharmacological interventions for the prevention of allergic and febrile non‐haemolytic transfusion reactions (2010) · Cochrane | RR 0 [0, 0] | 0 studies · 0 participants | Ungraded |
Acetaminophen plus Diphenhydramine vs placebo Death ‐ not reported · patients with requirement of prophylaxis to avoid allergic and febrile non‐haemolytic transfusion reactions Pharmacological interventions for the prevention of allergic and febrile non‐haemolytic transfusion reactions (2010) · Cochrane | RR 0 [0, 0] | 0 studies · 0 participants | Ungraded |
Acetaminophen plus Diphenhydramine vs placebo Adverse events · patients with requirement of prophylaxis to avoid allergic and febrile non‐haemolytic transfusion reactions Pharmacological interventions for the prevention of allergic and febrile non‐haemolytic transfusion reactions (2010) · Cochrane | RR 0 [0, 0] | 0 studies · 0 participants | Ungraded |
Acetaminophen plus Diphenhydramine vs placebo Allergic reactions (urticaria with or without pruritus) ‐ Intention‐to treat analysis · patients with requirement of prophylaxis to avoid allergic and febrile non‐haemolytic transfusion reactions Pharmacological interventions for the prevention of allergic and febrile non‐haemolytic transfusion reactions (2010) · Cochrane | RR 1.45 [0.78, 2.72] | 1 study · 334 participants | Very low |
Acetaminophen plus Diphenhydrammine vs placebo (Unit of randomisation: transfusion) Fever ‐ Per protocol analysis · patients with requirement of prophylaxis to avoid allergic and febrile non‐haemolytic transfusion reactions Pharmacological interventions for the prevention of allergic and febrile non‐haemolytic transfusion reactions (2010) · Cochrane | RR 1.77 [0.57, 5.49] | 1 study · 98 participants | Low |
Acetaminophen plus Diphenhydrammine vs placebo (Unit of randomisation: transfusion) Anaphylatic reactions ‐ not reported · patients with requirement of prophylaxis to avoid allergic and febrile non‐haemolytic transfusion reactions Pharmacological interventions for the prevention of allergic and febrile non‐haemolytic transfusion reactions (2010) · Cochrane | RR 0 [0, 0] | 0 studies · 0 participants | Ungraded |
Acetaminophen plus Diphenhydrammine vs placebo (Unit of randomisation: transfusion) Hives ‐ Per protocol analysis · patients with requirement of prophylaxis to avoid allergic and febrile non‐haemolytic transfusion reactions Pharmacological interventions for the prevention of allergic and febrile non‐haemolytic transfusion reactions (2010) · Cochrane | RR 0.13 [0.01, 2.39] | 1 study · 98 participants | Low |
Acetaminophen plus Diphenhydrammine vs placebo (Unit of randomisation: transfusion) Death ‐ not reported · patients with requirement of prophylaxis to avoid allergic and febrile non‐haemolytic transfusion reactions Pharmacological interventions for the prevention of allergic and febrile non‐haemolytic transfusion reactions (2010) · Cochrane | RR 0 [0, 0] | 0 studies · 0 participants | Ungraded |