What do systematic reviews say?

Nitroglycerin vs placebo

It is very uncertain whether nitroglycerin changes all‐cause mortality in 30 days post operation compared with placebo (very low certainty).

• Nitrates for the prevention of cardiac morbidity and mortality in patients undergoing non‐cardiac surgery 2016 · Cochrane Headline outcomes only
  RR 2.81 [0.12, 63.83]
  2 studies · 89 participants
  Very low

Family therapy vs standard‐of‐care therapy

• Family therapy approaches for anorexia nervosa 2019 · Cochrane Headline outcomes only
  no estimate extracted
  0 studies · 0 participants
  GRADE not reported

Family therapy vs psychological interventions

• Family therapy approaches for anorexia nervosa 2019 · Cochrane Headline outcomes only
  no estimate extracted
  0 participants
  GRADE not reported

Case management vs usual care

Case management showed no clear difference in mortality (number of deaths) at 12 months compared with usual care (high certainty).

• Case management approaches to home support for people with dementia 2015 · Cochrane Headline outcomes only
  OR 1 [0.83, 1.2]
  8 studies · 6112 participants
  High

Summary of findings table ‐ Platelet transfusion vs no platelet transfusion

The review found no eligible studies for this question.

• Use of platelet transfusions prior to lumbar punctures or epidural anaesthesia for the prevention of complications in… 2018 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Antimicrobial mouthwash and/or nasal spray (alone or in combination), any concentration, frequency or dosage vs No treatment or saline or water

The review found no eligible studies for this question.

• Antimicrobial mouthwashes (gargling) and nasal sprays administered to patients with suspected or confirmed COVID‐19… 2020 · Cochrane All outcomes

  Minimum 2 weeks
  No data available (no included studies)
  0 studies
  No studies found