Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,016 questions · 2,067 findings · 222 reviews · Headline outcomes only

No studies found 471 · 22.8%GRADE not reported 108 · 5.2%Very low 570 · 27.6%Low 458 · 22.2%Moderate 363 · 17.6%High 97 · 4.7%

Fixed‐dose combination aclidinium/formoterol vs formoterol

Exacerbations requiring steroids or antibiotics or both: number of participants · patients with chronic obstructive pulmonary disease

Fixed‐dose combination aclidinium/formoterol leads to lower exacerbations requiring steroids or antibiotics or both: number of… compared with formoterol (high certainty).

1 finding from 1 review

Once‐daily ICS/LABA combined inhalers vs once‐daily LAMA

Any COPD exacerbation that requires short‐burst oral corticosteroids or antibiotics, or both · patients with chronic obstructive pulmonary disease

It is very uncertain whether once‐daily ICS/LABA combined inhalers changes any COPD exacerbation that requires short‐burst oral corticosteroids… compared with once‐daily LAMA (very low certainty).

1 finding from 1 review

Intervention not reported

Antibiotic prescriptions (number of courses/person/year) **Corticosteroids not meta‐analysed · adults (> 18 years of age) with either COPD or recurrent acute exacerbations of chronic bronchitis

The intervention may leads to higher antibiotic prescriptions (number of courses/person/year)… (low certainty).

1 finding from 1 review

Umeclidinium bromide vs placebo

Exacerbations requiring steroids or antibiotics or both: number of participants · patients with chronic obstructive pulmonary disease

Umeclidinium bromide leads to lower number of participants with exacerbations requiring steroids,… compared with placebo (high certainty).

1 finding from 1 review

Xylitol vs control

Antibiotic administration · preventing acute otitis media in children up to 12 years of age

Xylitol showed no clear difference in antibiotic administration compared with control (moderate certainty).

2 findings from 1 review

Normal saline plus standard treatment vs usual care

Antibiotic usage Patient‐reported usage · patients with acute upper respiratory tract infections

It is very uncertain whether normal saline plus standard treatment changes antibiotic usage Patient‐reported usage compared with standard treatment alone (very low certainty).

1 finding from 1 review

Intervention not reported

Symptomatic bacterial UTI in women with recent UTI Probiotics versus antibiotics ( · adults and children at risk of UTI

The intervention showed no clear difference in symptomatic bacterial UTI in women with recent UTI Probiotics versus… (low certainty).

1 finding from 1 review

Impregnated catheters vs antiseptic‐coated catheter

Symptomatic CAUTI: without microbiological evidence ‐ antibiotic versus silver alloy · Patients with an indwelling urethral catheter of short‐term duration

Antimicrobial‐impregnated catheter showed no clear difference in symptomatic CAUTI: without microbiological evidence ‐ antibiotic… compared with antiseptic‐coated catheter (moderate certainty).

1 finding from 1 review

Impregnated catheters vs antiseptic‐coated catheter

Symptomatic CAUTI: with microbiological evidence ‐ antibiotic versus silver alloy · Patients with an indwelling urethral catheter of short‐term duration

Antimicrobial‐impregnated catheter leads to lower symptomatic CAUTI: with microbiological evidence ‐ antibiotic versus… compared with antiseptic‐coated catheter (high certainty).

1 finding from 1 review

Oral corticosteroids vs placebo or NSAID

Proportion of patients with resolution or improved symptoms at days 3 to 7 · patients with acute sinusitis

Oral corticosteroids may leads to higher proportion of patients with resolution or improved symptoms at days… compared with placebo or NSAID (low certainty).

1 finding from 1 review

Oral corticosteroids vs placebo or NSAID

Proportion of patients with resolution or improved symptoms at days 4 to 14 ‐ Co‐treatment with antibiotics · patients with acute sinusitis

Oral corticosteroids may leads to higher proportion of patients with resolution or improved symptoms at days… compared with placebo or NSAID (low certainty).

1 finding from 1 review