Findings

What do systematic reviews say?

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

2,539 questions · 2,602 findings · 424 reviews · Headline outcomes only

No studies found 572 · 22%GRADE not reported 189 · 7.3%Very low 527 · 20.3%Low 685 · 26.3%Moderate 514 · 19.8%High 115 · 4.4%

Non‐surgical vs surgical treatment of oesophageal cancer (primary outcomes)

Long‐term recurrence (> 5 years) · patients with oesophageal cancer

It is very uncertain whether non‐surgical changes long‐term recurrence (binary outcome) Local recurrence, surgical… compared with surgical treatment of oesophageal cancer (secondary outcomes) (very low certainty).

1 finding from 1 review

Non‐surgical vs surgical treatment of oesophageal cancer (primary outcomes)

Long‐term recurrence (maximal · patients with oesophageal cancer

Non‐surgical showed no clear difference in long‐term recurrence (time‐to‐event outcome) Local recurrence,… compared with surgical treatment of oesophageal cancer (secondary outcomes) (low certainty).

1 finding from 1 review

Non‐surgical vs surgical treatment of oesophageal cancer (primary outcomes)

Long‐term mortality (binary outcome) All‐cause mortality for the duration of · patients with oesophageal cancer

Non‐surgical showed no clear difference in long‐term mortality (binary outcome) All‐cause mortality for the… compared with surgical treatment of oesophageal cancer (primary outcomes) (low certainty).

2 findings from 1 review

Non‐surgical vs surgical treatment of oesophageal cancer (primary outcomes)

Long‐term mortality (time‐to‐event outcome): chemoradiotherapy versus surgery All‐cause mortality for the duration of · patients with oesophageal cancer

Non‐surgical showed no clear difference in long‐term mortality (time‐to‐event outcome): chemoradiotherapy… compared with surgical treatment of oesophageal cancer (primary outcomes) (low certainty).

2 findings from 1 review

Non‐surgical vs surgical treatment of oesophageal cancer (primary outcomes)

Long‐term mortality (time‐to‐event outcome): radiotherapy versus surgery All‐cause mortality for the duration of · patients with oesophageal cancer

It is very uncertain whether non‐surgical changes long‐term mortality (time‐to‐event outcome): radiotherapy versus… compared with surgical treatment of oesophageal cancer (primary outcomes) (very low certainty).

1 finding from 1 review

Duodenum‐preserving pancreatic resection vs pancreaticoduodenectomy

Long‐term mortality · people requiring surgery for chronic pancreatitis

It is very uncertain whether duodenum‐preserving pancreatic resection changes long‐term mortality compared with pancreaticoduodenectomy (very low certainty).

1 finding from 1 review

Summary of findings for the main comparison. Implantable loop recorder vs conventional diagnostic workup

All‐cause long‐term mortality · people with unexplained recurrent syncope

It is very uncertain whether summary of findings for the main comparison. Implantable loop recorder changes all‐cause long‐term mortality compared with conventional diagnostic workup (very low certainty).

1 finding from 1 review

Protease‐modulating matrix dressing regimen vs any other dressing regimen

Proportion of participants healed ‐ long term (over 24 weeks) · people with venous leg ulcers

Protease‐modulating matrix dressing regimen showed no clear difference in proportion of participants healed ‐ long term (over 24 weeks) compared with any other dressing regimen (low certainty).

1 finding from 1 review

Fractional laser vs combined chemical peeling plus needling

Participant‐reported scar improvement (long‐term) · people with acne scars

It is very uncertain whether fractional laser changes participant‐reported scar improvement (long‐term) N of participants… compared with combined chemical peeling plus needling (very low certainty).

1 finding from 1 review

Chemical peeling vs combined chemical peeling plus any active intervention

Participant‐reported scar improvement (long‐term) · people with acne scars

It is very uncertain whether chemical peeling changes participant‐reported scar improvement (long‐term) N of participants… compared with combined chemical peeling plus any active intervention (very low certainty).

1 finding from 1 review

Chemical peeling vs needling

Participant‐reported scar improvement (long‐term) · people with acne scars

The review found no eligible studies for this question.

1 finding from 1 review

Fractional laser vs radiofrequency

Participant‐reported scar improvement (long‐term) · people with acne scars

The review found no eligible studies for this question.

1 finding from 1 review