Findings

What do systematic reviews say?

Refine by population, intervention, comparison or outcome
More filters
Evidence found and GRADE certainty

2,805 questions · 2,912 findings · 307 reviews · Headline outcomes only

No studies found 706 · 24.2%GRADE not reported 133 · 4.6%Very low 786 · 27%Low 696 · 23.9%Moderate 474 · 16.3%High 117 · 4%

Subcutaneous unfractionated heparin vs low molecular weight heparin

All‐cause mortality (7 days ‐ 3 months) · people aged ≥ 18 years with a diagnosis of new or recurrent VTE

Subcutaneous unfractionated heparin showed no clear difference in all‐cause mortality (7 days ‐ 3 months) compared with low molecular weight heparin (low certainty).

1 finding from 1 review

Subcutaneous unfractionated heparin vs unfractionated heparin

Symptomatic recurrent DVT at 3 months · people aged ≥ 18 years with a diagnosis of new or recurrent VTE

Subcutaneous unfractionated heparin showed no clear difference in symptomatic recurrent DVT at 3 months compared with intravenous unfractionated heparin (low certainty).

1 finding from 1 review

Subcutaneous unfractionated heparin vs unfractionated heparin

VTE‐related mortality4 · people aged ≥ 18 years with a diagnosis of new or recurrent VTE

Subcutaneous unfractionated heparin showed no clear difference in VTE‐related mortality at 3 months compared with intravenous unfractionated heparin (low certainty).

1 finding from 1 review

Subcutaneous unfractionated heparin vs unfractionated heparin

Major bleedingd (3 months) · people aged ≥ 18 years with a diagnosis of new or recurrent VTE

Subcutaneous unfractionated heparin showed no clear difference in major bleedingd (7 days ‐ 12 months) compared with intravenous unfractionated heparin (low certainty).

1 finding from 1 review

Subcutaneous unfractionated heparin vs unfractionated heparin

All‐cause mortality (5 days to 12 months) · people aged ≥ 18 years with a diagnosis of new or recurrent VTE

Subcutaneous unfractionated heparin showed no clear difference in all‐cause mortality (5 days to 12 months) compared with intravenous unfractionated heparin (low certainty).

1 finding from 1 review

Subcutaneous unfractionated heparin vs low molecular weight heparin

Symptomatic recurrent VTE at 3 months · people aged ≥ 18 years with a diagnosis of new or recurrent VTE

Subcutaneous unfractionated heparin showed no clear difference in symptomatic recurrent VTE at 3 months compared with low molecular weight heparin (low certainty).

1 finding from 1 review

Subcutaneous unfractionated heparin vs low molecular weight heparin

Symptomatic recurrent DVT at 3 months · people aged ≥ 18 years with a diagnosis of new or recurrent VTE

Subcutaneous unfractionated heparin showed no clear difference in symptomatic recurrent DVT at 3 months compared with low molecular weight heparin (low certainty).

1 finding from 1 review

Intervention not reported

Smoking uptake at longest · Children and adolescents aged 5 ‐ 18 years who were non‐smokers at baseline

The intervention showed no clear difference in smoking uptake at longest (low certainty).

1 finding from 1 review

Intervention not reported

Smoking uptake at longest · Children and adolescents aged 5 ‐ 18 years who were non‐smokers at baseline

It is very uncertain whether the intervention changes smoking uptake at longest (very low certainty).

1 finding from 1 review

Pseudoelastic orthosis vs traditional (static) splint

Spasticity at up to 6 hours after treatment (measured by the Ashworth Scale, 0‐, with a higher score indicating greater spasticity) · children/young people aged 4‐18 years with traumatic brain injury and with 'mild to severe spastic tetraparesis' (weakness) in all limbs
1 finding from 1 review

ProSeal vs Classic laryngeal mask airway (LMA)

Inadequate oxygenation (SaO₂ < 90% on peripheral oxygen saturation) · adult patients (18 years of age and older) for positive pressure ventilation undergoing elective surgery

It is very uncertain whether proSeal changes inadequate oxygenation (SaO₂ < 90% on peripheral oxygen saturation) compared with classic laryngeal mask airway (LMA) (very low certainty).

1 finding from 1 review