Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,310 questions · 1,358 findings · 214 reviews

No studies found 230 · 16.9%GRADE not reported 169 · 12.4%Very low 269 · 19.8%Low 277 · 20.4%Moderate 291 · 21.4%High 122 · 9%

Mirtazapine vs placebo

Participant‐reported pain relief of 30% or greater · adults with fibromyalgia

Mirtazapine may leads to higher participant‐reported pain relief of 30% or greater (moderate… compared with placebo (low certainty).

1 finding from 1 review

Intestinal trefoil factor (ITF), oral spray vs placebo

Oral mucositis (moderate to severe) · Adults receiving chemotherapy alone for colorectal cancer

Intestinal trefoil factor (ITF), oral spray led to lower oral mucositis (moderate to severe) compared with placebo; GRADE not reported.

1 finding from 1 review

Epidermal growth factor (EGF), oral spray vs placebo

Oral mucositis (moderate to severe) · Adults with cancer receiving treatment

Epidermal growth factor (EGF), oral spray showed no clear difference in oral mucositis (moderate to severe) compared with placebo; GRADE not reported.

2 findings from 1 review

Erythropoietin mouthwash vs placebo

Oral mucositis (moderate to severe) · Adults receiving bone marrow/stem cell transplantation after conditioning therapy for haematological cancers

Erythropoietin mouthwash led to lower oral mucositis (moderate to severe) compared with placebo; GRADE not reported.

1 finding from 1 review

Keratinocyte growth factor (KGF; palifermin or repifermin), intravenous vs placebo

Oral mucositis (moderate to severe) · Adults with cancer receiving treatment

Keratinocyte growth factor (KGF; palifermin or repifermin),… may leads to lower oral mucositis (moderate to severe) compared with placebo (low certainty).

3 findings from 1 review

Open surgical exposure vs Closed surgical exposure

Patient response: moderate or severe pain at 1 day postoperative · People with maxillary palatally displaced (impacted) canines, unilateral or bilateral (children/adolescents; mean ages 14.2 to 17.5 years)

Open surgical exposure showed no clear difference in patient response: moderate or severe pain at 1 day postoperative compared with closed surgical exposure; GRADE not reported.

1 finding from 1 review

GM-CSF vs placebo or no treatment

Oral mucositis (moderate to severe) · Adults with cancer receiving treatment

It is very uncertain whether granulocyte-macrophage colony-stimulating factor (GM-CSF) changes oral mucositis (moderate to severe) compared with placebo or no treatment (very low certainty).

2 findings from 1 review

Granulocyte-macrophage colony-stimulating factor (GM-CSF), mouthwash vs Sucralfate mouthwash

Oral mucositis (moderate to severe) · Adults receiving radiotherapy to the head and neck

Granulocyte-macrophage colony-stimulating factor (GM-CSF), mouthwash showed no clear difference in oral mucositis (moderate to severe) compared with sucralfate mouthwash; GRADE not reported.

1 finding from 1 review

Keratinocyte growth factor (KGF; palifermin or repifermin), intravenous vs Chlorhexidine mouthwash

Oral mucositis (moderate to severe) · Children with acute lymphoblastic leukaemia receiving chemotherapy alone

Keratinocyte growth factor (KGF), intravenous led to lower oral mucositis (moderate to severe) compared with chlorhexidine mouthwash; GRADE not reported.

1 finding from 1 review

Granulocyte-colony stimulating factor (G-CSF; pegfilgrastim, single dose) vs Granulocyte-colony stimulating factor (G-CSF; filgrastim, multiple doses)

Oral mucositis (moderate to severe) · Children receiving bone marrow/stem cell transplantation after conditioning therapy for mixed cancers

Granulocyte-colony stimulating factor (G-CSF; pegfilgrastim, single… showed no clear difference in oral mucositis (moderate to severe) compared with granulocyte-colony stimulating factor (G-CSF; filgrastim, multiple…; GRADE not reported.

1 finding from 1 review

Selective vs routine episiotomy: all vaginal births where operative vaginal delivery was not anticipated

Women with moderate or severe pain (measured by visual analogue scale) · Women in labour where operative delivery was not anticipated. (Women were above 16 years old and between 28 gestational weeks and full…

It is very uncertain whether selective changes women with moderate or severe pain (measured by visual analogue scale) compared with routine episiotomy: all vaginal births where operative vaginal… (very low certainty).

1 finding from 1 review

Oestrogen therapy alone vs placebo

Venous thrombo‐embolism (DVT or PE): CEE 0.625 mg (moderate dose) · relatively healthy postmenopausal women

Oestrogen‐only hormone therapy (HT) showed no clear difference in venous thromboembolism (DVT or PE): CEE 0.625 mg (moderate dose) compared with placebo (moderate certainty).

1 finding from 1 review

Emergency endovascular aneurysm repair vs conventional open repair

Complication: renal complications (moderate or severe) (30‐day) · people diagnosed with RAAA

Emergency endovascular aneurysm repair showed no clear difference in complication: renal complications (moderate or severe) (30‐day) compared with conventional open repair (low certainty).

1 finding from 1 review

Continuous chest compression alone vs interrupted chest compression plus artificial ventilation

Neurological function at hospital discharge, measured by cerebral performance category (CPC) · Patients with non‐trauma related out‐of‐hospital cardiac arrest

Continuous chest compression alone showed no clear difference in neurological outcomes at hospital discharge Measured as 'good' or… compared with interrupted chest compression plus artificial ventilation (moderate certainty).

1 finding from 1 review