Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

39 questions · 43 findings · 5 reviews

No studies found 1 · 2.3%GRADE not reported 5 · 11.6%Very low 7 · 16.3%Low 13 · 30.2%Moderate 12 · 27.9%High 5 · 11.6%

Regular formoterol and ICS vs same‐dose ICS

Asthma‐related non‐fatal serious adverse events · adults, chronic asthma: all‐cause mortality

Regular formoterol and ICS showed no clear difference in asthma‐related non‐fatal serious adverse events compared with same‐dose ICS (moderate certainty).

1 finding from 1 review

Regular formoterol and ICS vs same‐dose ICS

Asthma‐related non‐fatal serious adverse events · children and adolescents with chronic asthma

It is very uncertain whether regular formoterol and ICS changes asthma‐related non‐fatal serious adverse events compared with same‐dose ICS (very low certainty).

1 finding from 1 review

Adults: formoterol/ICS vs salmeterol/ICS

All‐cause mortality ‐ formoterol and budesonide vs salmeterol and fluticasone · adults, chronic asthma: all‐cause mortality

Adults: formoterol/ICS showed no clear difference in all‐cause mortality ‐ formoterol/budesonide vs salmeterol/fluticasone compared with salmeterol/ICS (low certainty).

1 finding from 1 review

Adults: formoterol/ICS vs salmeterol/ICS

All‐cause non‐fatal serious adverse events ‐ formoterol/budesonide vs salmeterol/budesonide · adults, chronic asthma: all‐cause mortality

Adults: formoterol/ICS showed no clear difference in all‐cause non‐fatal serious adverse events ‐ formoterol/budesonide… compared with salmeterol/ICS (low certainty).

1 finding from 1 review

Adults: formoterol/ICS vs salmeterol/ICS

Asthma‐related non‐fatal serious adverse events · adults, chronic asthma: all‐cause mortality

Adults: formoterol/ICS showed no clear difference in asthma‐related non‐fatal serious adverse events ‐… compared with salmeterol/ICS (low certainty).

5 findings from 1 review
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Adults: formoterol/ICS vs salmeterol/ICS

All‐cause mortality ‐ formoterol/mometasone vs salmeterol/fluticasone · adults, chronic asthma: all‐cause mortality

Adults: formoterol/ICS showed no clear difference in all‐cause mortality ‐ formoterol/mometasone vs salmeterol/fluticasone compared with salmeterol/ICS (low certainty).

1 finding from 1 review

Adults: formoterol/ICS vs salmeterol/ICS

All‐cause mortality ‐ formoterol/fluticasone vs salmeterol/fluticasone · adults, chronic asthma: all‐cause mortality

Adults: formoterol/ICS showed no clear difference in all‐cause mortality ‐ formoterol/fluticasone vs salmeterol/fluticasone compared with salmeterol/ICS (low certainty).

1 finding from 1 review