Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

196 questions · 197 findings · 80 reviews

No studies found 45 · 22.8%GRADE not reported 15 · 7.6%Very low 42 · 21.3%Low 49 · 24.9%Moderate 36 · 18.3%High 10 · 5.1%

LAMA add‐on vs long‐acting beta2‐agonists (LABA) add‐on

Adverse events (all) · adults with asthma not well controlled on ICS

Long‐acting muscarinic antagonists (LAMA) add‐on showed no clear difference in adverse events (all) compared with long‐acting beta2‐agonists (LABA) add‐on (moderate certainty).

1 finding from 1 review

Naloxone + oxycodone prolonged release tablets vs oxycodone

Adverse events · people with cancer irrespective of whether they were receiving palliative care opioid‐induced bowel dysfunction

Naloxone + oxycodone prolonged release tablets showed no clear difference in adverse events compared with oxycodone prolonged‐released tablets (low certainty).

1 finding from 1 review

LAMA add‐on vs long‐acting beta2‐agonists (LABA) add‐on

Serious adverse events 22 weeks · adults with asthma not well controlled on ICS

Long‐acting muscarinic antagonists (LAMA) add‐on showed no clear difference in serious adverse events 22 weeks compared with long‐acting beta2‐agonists (LABA) add‐on (low certainty).

1 finding from 1 review

Naloxone + oxycodone prolonged release tablets vs oxycodone

Serious adverse eventsg · people with cancer irrespective of whether they were receiving palliative care opioid‐induced bowel dysfunction

It is very uncertain whether naloxone + oxycodone prolonged release tablets changes serious adverse eventsg compared with oxycodone prolonged‐released tablets (very low certainty).

1 finding from 1 review

Long‐term red cell transfusion vs no transfusion

Adverse events associated with transfusion · individuals with sickle cell disease who are at risk of a primary stroke who have not had previous long‐term red cell transfusions

It is very uncertain whether long‐term red cell transfusion changes adverse events associated with transfusion compared with no transfusion (very low certainty).

1 finding from 1 review

Long‐term red cell transfusion vs hydroxyurea and phlebotomy

Serious adverse events as a result of sickle cell‐related complications · individuals with sickle cell disease who are at risk of a primary stroke who have had long‐term red cell transfusions to prevent a stroke

It is very uncertain whether long‐term red cell transfusion changes serious adverse events as a result of sickle cell‐related… compared with hydroxyurea and phlebotomy (very low certainty).

1 finding from 1 review

Long‐term red cell transfusion vs hydroxyurea and phlebotomy

Serious adverse events as a result of sickle cell‐related complications · individuals with sickle cell disease who have had a stroke who have had long‐term red cell transfusions to prevent another stroke

It is very uncertain whether long‐term red cell transfusion changes serious adverse events as a result of sickle cell‐related… compared with hydroxyurea and phlebotomy (very low certainty).

1 finding from 1 review

Long‐term red cell transfusion vs no transfusion

Serious adverse events as a result of sickle cell‐related complications · individuals with sickle cell disease who are at risk of a primary stroke who have not had previous long‐term red cell transfusions

Long‐term red cell transfusion may leads to lower serious adverse events as a result of sickle cell‐related… compared with no transfusion (low certainty).

1 finding from 1 review