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%

Intranasal corticosteroids vs placebo

Health outcomes Peak expiratory flow readings (higher readings indicate better peak flow) · adults and children > 12 with non‐allergic rhinitis

It is very uncertain whether intranasal corticosteroids changes objective measurement of airflow: peak flow rate (expiratory) compared with placebo (very low certainty).

1 finding from 1 review

Adjunctive corticosteroids vs no such treatment

Need for mechanical ventilation · patients with Pneumocystis jiroveci pneumonia and HIV infection

Adjunctive corticosteroids probably leads to lower need for mechanical ventilation at 1 month compared with no such treatment (moderate certainty).

1 finding from 1 review

Intratympanic corticosteroids vs placebo/no treatment

Improvement in vertigo frequency · Ménière’s disease

Intratympanic corticosteroids showed no clear difference in improvement in vertigo frequency compared with placebo/no treatment (low certainty).

2 findings from 1 review

Intratympanic corticosteroids vs placebo/no treatment

Change in vertigo frequency · Ménière’s disease
3 findings from 1 review

Intratympanic corticosteroids vs no treatment or versus placebo

Change in hearing threshold determined by PTA Range 0 dB to 140 dB Negative values represent lowering and positive values represent raising of the hearing threshold. A lower hearing threshold represents hearing improvement. Â · sudden sensorineural hearing loss

Intratympanic corticosteroids showed no clear difference in change in hearing threshold determined by PTA Range 0 dB to 140 dB… compared with no treatment or versus placebo (low certainty).

1 finding from 1 review

Intratympanic corticosteroids vs no treatment or versus placebo

Final hearing threshold determined by PTA (a lower value represents better hearing) · sudden sensorineural hearing loss

Intratympanic corticosteroids showed no clear difference in final hearing threshold determined by PTA (a lower value represents… compared with no treatment or versus placebo (low certainty).

1 finding from 1 review