What do systematic reviews say?

Vitamin C vs placebo

• Vitamin C for asthma and exercise‐induced bronchoconstriction 2013 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 201 participants
  Low

Vitamin C vs placebo

The review found no eligible studies for this question.

• Vitamin C for asthma and exercise‐induced bronchoconstriction 2013 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Fluticasone propionate spray vs Betamethasone sodium phosphate mouthwash

• Interventions for erosive lichen planus affecting mucosal sites 2012 · Cochrane All outcomes
  No statistical testing of the Oral Health Quality of Life index (OHQoL16) was reported in Hegarty 2002 (fluticasone mean score 0.7 versus betamethasone mean score -0.8).
  1 study · 22 participants
  GRADE not reported

Prebiotic vs placebo

• Prebiotics for induction and maintenance of remission in ulcerative colitis 2024 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 8 participants
  Very low

Summary of findings: ACBT vs other breathing techniques

• Active cycle of breathing technique for cystic fibrosis 2023 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 30 participants
  Very low

Medication review vs usual care

It is very uncertain whether medication review changes health‐related quality of lifeg Median compared with standard care (very low certainty).

• Medication review in hospitalised patients to reduce morbidity and mortality 2023 · Cochrane Headline outcomes only
  SMD 0.1
  4 studies · 392 participants
  Very low

Exercise plus PD&P vs PD&P only

The review found no eligible studies for this question.

• Exercise versus airway clearance techniques for people with cystic fibrosis 2022 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Exercise vs underwater PEP (uPEP; also known

The review found no eligible studies for this question.

• Exercise versus airway clearance techniques for people with cystic fibrosis 2022 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Intervention not reported

The review found no eligible studies for this question.

• Specialist breast care nurses for support of women with breast cancer 2021 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Pulmonary rehabilitation vs no pulmonary rehabilitation

• Pulmonary rehabilitation for interstitial lung disease 2021 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 89 participants
  Low

Pulmonary rehabilitation vs no pulmonary rehabilitation

• Pulmonary rehabilitation for interstitial lung disease 2021 · Cochrane Headline outcomes only
  no estimate extracted
  4 studies · 240 participants
  Low

Medication reconciliation: pharmacist vs other professionals

• Reducing medication errors for adults in hospital settings 2021 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 724 participants
  Low

Medication reconciliation interventions vs no medication reconciliation

• Reducing medication errors for adults in hospital settings 2021 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 131 participants
  Low

Mineralocorticoid receptor antagonists (MRAs) vs placebo or no treatment

• Beta‐blockers and inhibitors of the renin‐angiotensin aldosterone system for chronic heart failure with preserved… 2021 · Cochrane Headline outcomes only
  no estimate extracted
  3 studies · 511 participants
  Low

Angiotensin‐converting enzyme inhibitors vs placebo or no treatment

• Beta‐blockers and inhibitors of the renin‐angiotensin aldosterone system for chronic heart failure with preserved… 2021 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 154 participants
  Low

Angiotensin receptor blockers (ARBs) vs placebo or no treatment

• Beta‐blockers and inhibitors of the renin‐angiotensin aldosterone system for chronic heart failure with preserved… 2021 · Cochrane Headline outcomes only
  no estimate extracted
  3 studies · 3117 participants
  High

Beta‐blockers vs placebo or no treatment

• Beta‐blockers and inhibitors of the renin‐angiotensin aldosterone system for chronic heart failure with preserved… 2021 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 93 participants
  Very low

Linezolid vs vancomycin

The review found no eligible studies for this question.

• Antibiotics for hospital‐acquired pneumonia in neonates and children 2021 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Cefepime vs ceftazidime

The review found no eligible studies for this question.

• Antibiotics for hospital‐acquired pneumonia in neonates and children 2021 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Traditional suburethral sling operation vs a single‐incision sling (mini‐sling)

• Traditional suburethral sling operations for urinary incontinence in women 2020 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 70 participants
  Very low