What do systematic reviews say?

Intervention not reported

The intervention showed no clear difference in normal versus simulated altitude conditions: risk of AMS (low certainty).

• Interventions for preventing high altitude illness: Part 3. Miscellaneous and non‐pharmacological interventions 2019 · Cochrane Headline outcomes only
  RR 1.18 [0.82, 1.71]
  3 studies · 140 participants
  Low

Intervention not reported

The intervention may leads to higher positive end‐expiratory pressure (PEEP) versus nothing: risk of AMS (low certainty).

• Interventions for preventing high altitude illness: Part 3. Miscellaneous and non‐pharmacological interventions 2019 · Cochrane Headline outcomes only
  OR 3.67 [1.38, 9.76]
  1 study · 8 participants
  Low

Intervention not reported

The intervention showed no clear difference in remote ischaemic preconditioning (RIPC) versus placebo: risk of AMS (low certainty).

• Interventions for preventing high altitude illness: Part 3. Miscellaneous and non‐pharmacological interventions 2019 · Cochrane Headline outcomes only
  RR 3 [0.69, 13.12]
  1 study · 40 participants
  Low

Intervention not reported

The review found no eligible studies for this question.

• Interventions for preventing high altitude illness: Part 3. Miscellaneous and non‐pharmacological interventions 2019 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Intervention not reported

The intervention showed no clear difference in antioxidants versus placebo: risk of AMS (low certainty).

• Interventions for preventing high altitude illness: Part 3. Miscellaneous and non‐pharmacological interventions 2019 · Cochrane Headline outcomes only
  RR 0.58 [0.32, 1.03]
  1 study · 18 participants
  Low

Intervention not reported

The intervention may leads to lower ginkgo biloba versus placebo: risk of AMS (low certainty).

• Interventions for preventing high altitude illness: Part 3. Miscellaneous and non‐pharmacological interventions 2019 · Cochrane Headline outcomes only
  no estimate extracted
  6 studies · 504 participants
  Low

Intervention not reported

It is very uncertain whether the intervention changes erythropoietin versus placebo: risk of AMS (very low certainty).

• Interventions for preventing high altitude illness: Part 3. Miscellaneous and non‐pharmacological interventions 2019 · Cochrane Headline outcomes only
  RR 0.41 [0.2, 0.84]
  1 study · 39 participants
  Very low

Intervention not reported

The intervention showed no clear difference in medroxyprogesterone versus placebo: risk of AMS (low certainty).

• Interventions for preventing high altitude illness: Part 3. Miscellaneous and non‐pharmacological interventions 2019 · Cochrane Headline outcomes only
  RR 0.71 [0.48, 1.05]
  2 studies · 32 participants
  Low

Intervention not reported

The review found no eligible studies for this question.

• Interventions for treating acute high altitude illness 2018 · 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.

• Interventions for treating acute high altitude illness 2018 · 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.

• Interventions for treating acute high altitude illness 2018 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Intervention not reported

• Interventions for treating acute high altitude illness 2018 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 64 participants
  Low

Intervention not reported

• Interventions for treating acute high altitude illness 2018 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 29 participants
  Low

Intervention not reported

The review found no eligible studies for this question.

• Interventions for treating acute high altitude illness 2018 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Intervention not reported

• Interventions for treating acute high altitude illness 2018 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 35 participants
  Low

Intervention not reported

The intervention showed no clear difference in reduction in symptom score severity Time of measurement: 1 to 48… (low certainty).

• Interventions for treating acute high altitude illness 2018 · Cochrane Headline outcomes only
  Mean Difference 1.15
  2 studies · 25 participants
  Low

Intervention not reported

• Interventions for treating acute high altitude illness 2018 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 25 participants
  Low

Lower vs higher oxygen concentrations titrated to target oxygen saturations during resuscitation of preterm infants at birth

Lower showed no clear difference in mortality, near term corrected age or discharge compared with higher oxygen concentrations titrated to target oxygen saturations… (low certainty).

• Lower versus higher oxygen concentrations titrated to target oxygen saturations during resuscitation of preterm… 2018 · Cochrane Headline outcomes only
  RR 1.05 [0.68, 1.63]
  10 studies · 914 participants
  Low

Lower vs higher oxygen concentrations titrated to target oxygen saturations during resuscitation of preterm infants at birth

Lower showed no clear difference in neurodevelopmental disability compared with higher oxygen concentrations titrated to target oxygen saturations… (low certainty).

• Lower versus higher oxygen concentrations titrated to target oxygen saturations during resuscitation of preterm… 2018 · Cochrane Headline outcomes only
  RR 0.82 [0.49, 1.35]
  2 studies · 208 participants
  Low

Lower vs higher oxygen concentrations titrated to target oxygen saturations during resuscitation of preterm infants at birth

Lower showed no clear difference in intubation in the delivery room compared with higher oxygen concentrations titrated to target oxygen saturations… (low certainty).

• Lower versus higher oxygen concentrations titrated to target oxygen saturations during resuscitation of preterm… 2018 · Cochrane Headline outcomes only
  RR 0.98 [0.82, 1.18]
  9 studies · 875 participants
  Low