Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

415 questions · 442 findings · 58 reviews

No studies found 70 · 15.8%GRADE not reported 19 · 4.3%Very low 99 · 22.4%Low 137 · 31%Moderate 86 · 19.5%High 31 · 7%

Early systemic postnatal corticosteroids vs placebo or no treatment

Cerebral palsy · preventing bronchopulmonary dysplasia in preterm infants

Early systemic postnatal corticosteroids leads to higher cerebral palsy at latest reported age compared with placebo or no treatment (high certainty).

1 finding from 1 review

Early systemic postnatal corticosteroids vs placebo or no treatment

Death or cerebral palsy · preventing bronchopulmonary dysplasia in preterm infants

Early systemic postnatal corticosteroids showed no clear difference in mortality or cerebral palsy at latest reported age compared with placebo or no treatment (high certainty).

1 finding from 1 review

Iontophoretically applied corticosteroids

Outcome not reported · Adults (>18 years) with temporomandibular joint osteoarthritis (TMJ OA) diagnosed by RDC/TMD or compatible criteria

The review found no eligible studies for this question.

1 finding from 1 review

Inhaled corticosteroids plus standard care vs placebo or usual care

All‐cause mortality · adults with a confirmed diagnosis of mild COVID‐19, of whom only 10% (219/2132) participants had received ≥ 1 vaccination

Inhaled corticosteroids plus standard care showed no clear difference in all‐cause mortality compared with standard care (with or without placebo) (low certainty).

1 finding from 1 review

Inhaled corticosteroids plus standard care vs placebo or usual care

Admission to hospital or death · adults with a confirmed diagnosis of mild COVID‐19, of whom only 10% (219/2132) participants had received ≥ 1 vaccination

Inhaled corticosteroids plus standard care probably leads to lower admission to hospital or death compared with standard care (with or without placebo) (moderate certainty).

1 finding from 1 review

Inhaled corticosteroids plus standard care vs placebo or usual care

Resolution of symptoms · adults with a confirmed diagnosis of mild COVID‐19, of whom only 10% (219/2132) participants had received ≥ 1 vaccination

Inhaled corticosteroids plus standard care probably leads to higher symptom resolution: all initial symptoms resolved at day 14 compared with standard care (with or without placebo) (moderate certainty).

1 finding from 1 review

Inhaled corticosteroids plus standard care vs placebo or usual care

Time to symptom resolution · adults with a confirmed diagnosis of mild COVID‐19, of whom only 10% (219/2132) participants had received ≥ 1 vaccination

Inhaled corticosteroids plus standard care showed no clear difference in symptom resolution: duration to symptoms resolved compared with standard care (with or without placebo) (low certainty).

1 finding from 1 review

Inhaled corticosteroids plus standard care vs placebo or usual care

Serious adverse events · adults with a confirmed diagnosis of mild COVID‐19, of whom only 10% (219/2132) participants had received ≥ 1 vaccination

It is very uncertain whether inhaled corticosteroids plus standard care changes serious adverse events compared with standard care (with or without placebo) (very low certainty).

1 finding from 1 review

Inhaled corticosteroids plus standard care vs placebo or usual care

Adverse events · adults with a confirmed diagnosis of mild COVID‐19, of whom only 10% (219/2132) participants had received ≥ 1 vaccination

Inhaled corticosteroids plus standard care showed no clear difference in adverse events compared with standard care (with or without placebo) (low certainty).

1 finding from 1 review

Inhaled corticosteroids plus standard care vs placebo or usual care

Infections · adults with a confirmed diagnosis of mild COVID‐19, of whom only 10% (219/2132) participants had received ≥ 1 vaccination

Inhaled corticosteroids plus standard care showed no clear difference in infections compared with standard care (with or without placebo) (low certainty).

1 finding from 1 review

Corticosteroids vs placebo or no treatment

Neonatal death (baby born alive at any gestation and dies within 28 days) · infants born of women at risk of preterm birth

Neonatal and child outcomes: corticosteroids leads to lower neonatal death (infants born with signs of life who die within the… compared with placebo or no treatment (high certainty).

1 finding from 1 review

Corticosteroids vs placebo or no treatment

Respiratory distress syndrome · infants born of women at risk of preterm birth

Neonatal and child outcomes: corticosteroids leads to lower respiratory distress syndrome№ of participants: 11,183(26 RCTs) compared with placebo or no treatment (high certainty).

1 finding from 1 review

Corticosteroids vs placebo or no treatment

Intraventricular haemorrhage · infants born of women at risk of preterm birth

Neonatal and child outcomes: corticosteroids probably leads to lower intraventricular haemorrhage (IVH)№ of participants: 8475(12 RCTs) compared with placebo or no treatment (moderate certainty).

1 finding from 1 review