What do systematic reviews say?

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

• Non‐surgical versus surgical treatment for oesophageal cancer 2016 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 165 participants
  Very low

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

• Non‐surgical versus surgical treatment for oesophageal cancer 2016 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 62 participants
  Very low

5‐ASA vs placebo

The review found no eligible studies for this question.

• Oral 5‐aminosalicylic acid for maintenance of surgically‐induced remission in Crohn's disease 2019 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

High dose 5‐ASA vs low dose 5‐ASA

The review found no eligible studies for this question.

• Oral 5‐aminosalicylic acid for maintenance of surgically‐induced remission in Crohn's disease 2019 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

5‐ASA vs purine antimetabolites

It is very uncertain whether 5‐ASA changes health related quality of life compared with purine antimetabolites (very low certainty).

• Oral 5‐aminosalicylic acid for maintenance of surgically‐induced remission in Crohn's disease 2019 · Cochrane Headline outcomes only
  RR 1.42 [0.27, 7.46]
  1 study · 35 participants
  Very low

5‐ASA vs anti TNF‐ɑ

It is very uncertain whether 5‐ASAs changes health related quality of life compared with anti TNF‐ɑ (very low certainty).

• Oral 5‐aminosalicylic acid for maintenance of surgically‐induced remission in Crohn's disease 2019 · Cochrane Headline outcomes only
  RR 0.19 [0.07, 0.54]
  1 study · 34 participants
  Very low

5‐ASA vs no treatment

The review found no eligible studies for this question.

• Oral 5‐aminosalicylic acid for maintenance of surgically‐induced remission in Crohn's disease 2019 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Duodenal stenting vs surgical palliation

The review found no eligible studies for this question.

• Stent placement versus surgical palliation for adults with malignant gastric outlet obstruction 2018 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Sulphasalazine vs placebo

The review found no eligible studies for this question.

• Oral 5‐aminosalicylic acid for maintenance of surgically‐induced remission in Crohn's disease 2019 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Surgery vs conservative treatment

The review found no eligible studies for this question.

• Endoscopic or surgical intervention for painful obstructive chronic pancreatitis 2015 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Endoscopy vs surgery

• Endoscopic or surgical intervention for painful obstructive chronic pancreatitis 2015 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 31 participants
  Moderate

Endoscopy vs surgery

• Endoscopic or surgical intervention for painful obstructive chronic pancreatitis 2015 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 31 participants
  Moderate