Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

394 questions · 412 findings · 112 reviews

No studies found 51 · 12.4%GRADE not reported 41 · 10%Very low 86 · 20.9%Low 121 · 29.4%Moderate 84 · 20.4%High 29 · 7%

Non‐invasive ventilation vs supplemental oxygen or no treatment

Need for mechanical ventilation · patients with the management of transient tachypnea of the newborn

It is very uncertain whether non‐invasive respiratory support changes need for mechanical ventilation compared with supplemental oxygen or no treatment (very low certainty).

1 finding from 1 review

Non‐invasive ventilation vs supplemental oxygen or no treatment

All‐cause mortality · patients with the management of transient tachypnea of the newborn

It is very uncertain whether non‐invasive respiratory support changes all‐cause mortality compared with supplemental oxygen or no treatment (very low certainty).

1 finding from 1 review

Antibiotics vs placebo

Exacerbations · Adults (aged 40 or over) with COPD presenting with 1 or more exacerbations in the previous year. The 2 larger studies (Albert 2011; Sethi…

Antibiotics probably leads to lower number of people with one or more exacerbations WMD of compared with placebo (moderate certainty).

1 finding from 1 review

Antibiotics vs placebo

Annual Exacerbation Rates · Adults (aged 40 or over) with COPD presenting with 1 or more exacerbations in the previous year. The 2 larger studies (Albert 2011; Sethi…

Antibiotics probably leads to lower rate of exacerbation per patient/year WMD of compared with placebo (moderate certainty).

1 finding from 1 review

Antibiotics vs placebo

All‐cause mortality WMD of · Adults (aged 40 or over) with COPD presenting with 1 or more exacerbations in the previous year. The 2 larger studies (Albert 2011; Sethi…

Antibiotics showed no clear difference in all‐cause mortality WMD of compared with placebo (moderate certainty).

1 finding from 1 review

Antibiotics vs placebo

Serious adverse events WMD of · Adults (aged 40 or over) with COPD presenting with 1 or more exacerbations in the previous year. The 2 larger studies (Albert 2011; Sethi…

Antibiotics showed no clear difference in serious adverse events WMD of compared with placebo (moderate certainty).

1 finding from 1 review

NPPV vs oxygen therapy

Duration of ICU stay · adults (aged > 17 years) with acute respiratory failure after upper abdominal surgery

It is very uncertain whether noninvasive positive pressure ventilation (NPPV) changes ICU length of stay compared with oxygen therapy (very low certainty).

1 finding from 1 review

Hypnosis vs Inhalation sedation with nitrous oxide and oxygen

Completion of treatment · Children aged 10 to 16 years undergoing orthodontic extractions (Braithwaite 2005)

The review found no eligible studies for this question.

1 finding from 1 review
  • Completion of treatment (yes/no) was a protocol-planned primary outcome but was not reported by the included study for this comparison (Braithwaite 2005); one participant in the sedation arm was withdrawn during…
    Studies not reported
    No studies found

Hypnosis vs Inhalation sedation with nitrous oxide and oxygen

Anxiety control and overall response to treatment during tooth extraction · Children aged 10 to 16 years undergoing orthodontic extractions (Braithwaite 2005)
1 finding from 1 review
  • Hypnosis did not provide sufficient anxiety control during tooth extraction, and overall response to treatment remained statistically lower than response to inhalation sedation with nitrous oxide and oxygen (i.e. the…
    1 study · 10 participants
    GRADE not reported