Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,163 questions · 1,209 findings · 133 reviews · Headline outcomes only

No studies found 176 · 14.6%GRADE not reported 47 · 3.9%Very low 241 · 19.9%Low 323 · 26.7%Moderate 315 · 26.1%High 107 · 8.9%

Stopping LABA vs continuing use of LABA+ICS

Rate of exacerbations requiring systemic corticosteroids · adults with asthma well controlled on LABA and ICS

Stopping LABA showed no clear difference in exacerbation: systemic corticosteroids 17 weeks compared with continuing use of LABA+ICS (moderate certainty).

1 finding from 1 review

Anti‐leukotrienes & ICS vs same‐dose ICS

Number of participants experiencing one or more episode requiring treatment with oral steroids · children with asthma

Anti‐leukotrienes & ICS may leads to lower participants with one or more exacerbations requiring oral… compared with same dose ICS (low certainty).

1 finding from 1 review

Anti‐leukotrienes & ICS vs ICS dose increase

Number of participants experiencing one or more episode requiring treatment with oral steroids · children with asthma

Anti‐leukotrienes & ICS may leads to lower participants with one or more exacerbations requiring oral… compared with higher dose ICS (low certainty).

1 finding from 1 review

Intermittent 'as needed' ICS vs daily ICS

Number of participants experiencing one or more episode requiring treatment with oral steroids · Children and adults with persistent asthma.

Intermittent 'as needed' ICS showed no clear difference in patients with 1 or more exacerbations requiring oral corticosteroids… compared with daily ICS (low certainty).

1 finding from 1 review

Corticosteroids vs control

Infectious complications · people with inflammatory bowel disease

It is very uncertain whether risk of postoperative infectious complications: corticosteroids changes overall infectious complications within 30 days of surgery compared with control (very low certainty).

3 findings from 1 review

Corticosteroids vs control

Incisional infections and wound dehiscence within 30 days of surgery · people with inflammatory bowel disease

It is very uncertain whether risk of postoperative infectious complications: corticosteroids changes incisional infections and wound dehiscence within 30 days of surgery compared with control (very low certainty).

1 finding from 1 review

Corticosteroids vs control

Intra‐abdominal infectious complications within 30 days of surgery · people with inflammatory bowel disease

It is very uncertain whether risk of postoperative infectious complications: corticosteroids changes intra‐abdominal infectious complications within 30 days of surgery compared with control (very low certainty).

1 finding from 1 review

Corticosteroids vs control

Extra‐abdominal infections within 30 days of surgery · people with inflammatory bowel disease

It is very uncertain whether risk of postoperative infectious complications: corticosteroids changes extra‐abdominal infections within 30 days of surgery compared with control (very low certainty).

1 finding from 1 review

Systemic corticosteroids plus intranasal steroid/mucolytic/decongestant vs no intervention

Psychophysical testing for recovery of sense of smell · adults with olfactory dysfunction for ≥ 4 weeks following COVID‐19 infection

It is very uncertain whether systemic corticosteroids plus intranasal… changes psychophysical testing for recovery of sense of smell compared with no intervention (very low certainty).

1 finding from 1 review

Vitamin D vs placebo

Rate of exacerbations requiring systemic corticosteroids · children and adults with predominantly mild to moderate asthma

Summary of findings table ‐ Vitamin D showed no clear difference in proportion of participants with one or more exacerbations treated… compared with placebo (high certainty).

1 finding from 1 review

Mepolizumab subcutaneous (SC) vs placebo

Rate of clinically significant exacerbations requiring systemic corticosteroids · people with asthma

Mepolizumab subcutaneous (SC) leads to lower rate of clinically significant exacerbations requiring systemic… compared with placebo (high certainty).

1 finding from 1 review