Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

929 questions · 946 findings · 295 reviews · Headline outcomes only

No studies found 150 · 15.9%GRADE not reported 47 · 5%Very low 312 · 33%Low 262 · 27.7%Moderate 138 · 14.6%High 37 · 3.9%

Supervised maintenance programme following pulmonary rehabilitation vs usual care

Exacerbations (number of people experiencing ≥ 1 exacerbations) · patients with chronic obstructive pulmonary disease

Supervised maintenance programme following pulmonary rehabilitation showed no clear difference in exacerbation: number of people experiencing one or more exacerbation compared with usual care (low certainty).

1 finding from 1 review

Summary of findings ‐ Prophylactic vs 'as required' anti‐staphylococcal antibiotics

Number of people with one or more isolates of S aureus (sensitive strains) · children with cystic fibrosis

Summary of findings ‐ Prophylactic may leads to lower number of people with one or more isolates of S aureus (sensitive… compared with 'as required' anti‐staphylococcal antibiotics (low certainty).

1 finding from 1 review

Summary of findings ‐ Prophylactic vs 'as required' anti‐staphylococcal antibiotics

Number of people with one or more isolates of P aeruginosa · children with cystic fibrosis

Summary of findings ‐ Prophylactic showed no clear difference in number of people with one or more isolates of P aeruginosa compared with 'as required' anti‐staphylococcal antibiotics (low certainty).

1 finding from 1 review

Radiotherapy vs control

Progression to visual loss (loss of 3 or more lines on logMAR chart) · people with neovascular AMD

Radiotherapy showed no clear difference in loss of 3 or more lines of best‐corrected visual acuity Measured… compared with control (low certainty).

1 finding from 1 review

Radiotherapy combined with anti‐VEGF vs anti‐VEGF alone

Progression to visual loss (loss of 3 or more lines on logMAR chart) · people with neovascular AMD

Radiotherapy combined with anti‐VEGF probably leads to higher loss of 3 or more lines of best‐corrected visual acuity Measured… compared with anti‐VEGF alone (moderate certainty).

1 finding from 1 review

Intervention not reported

Use of 1 or more red blood cell transfusions (low and high doses of EPO) · preterm infants with low birth weight

The intervention may leads to lower use of 1 or more red blood cell transfusions (low and high doses of… (low certainty).

1 finding from 1 review

Intervention not reported

Use of one or more red blood cell transfusions (low and high dose of EPO) during initial hospital stay · preterm infants with low birth weight

It is very uncertain whether the intervention changes use of one or more red blood cell transfusions (low and high dose of… (very low certainty).

1 finding from 1 review

Brain‐derived neurotrophic factor vs placebo

Participants with 1 or more serious adverse events · patients with Guillain‐Barré syndrome

It is very uncertain whether brain‐derived neurotrophic factor changes participants with 1 or more serious adverse events compared with placebo (very low certainty).

1 finding from 1 review

Cerebrospinal fluid filtration vs plasma exchange

Participants with 1 or more serious adverse events · patients with Guillain‐Barré syndrome

It is very uncertain whether cerebrospinal fluid filtration changes participants with 1 or more serious adverse events compared with plasma exchange (very low certainty).

1 finding from 1 review