What do systematic reviews say?

CPAP with expiratory pressure relief vs fixed CPAP

• Pressure modification or humidification for improving usage of continuous positive airway pressure machines in adults… 2019 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 74 participants
  Low

Continuous positive airway pressure (CPAP) plus best supportive care vs best supportive care

The review found no eligible studies for this question.

• Non‐invasive positive pressure ventilation for central sleep apnoea in adults 2022 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Continuous positive airway pressure (CPAP) vs sham CPAP

• Non‐invasive positive airway pressure therapy for improving erectile dysfunction in men with obstructive sleep apnoea 2021 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 61 participants
  GRADE not reported

Continuous positive airway pressure (CPAP) vs sham CPAP

• Non‐invasive positive airway pressure therapy for improving erectile dysfunction in men with obstructive sleep apnoea 2021 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 61 participants
  GRADE not reported

Continuous positive airway pressure (CPAP) vs phosphodiesterase type 5 inhibitors

The review found no eligible studies for this question.

• Non‐invasive positive airway pressure therapy for improving erectile dysfunction in men with obstructive sleep apnoea 2021 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Continuous positive airway pressure (CPAP) vs no CPAP

The review found no eligible studies for this question.

• Non‐invasive positive airway pressure therapy for improving erectile dysfunction in men with obstructive sleep apnoea 2021 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Continuous positive airway pressure (CPAP) vs phosphodiesterase type 5 inhibitors

• Non‐invasive positive airway pressure therapy for improving erectile dysfunction in men with obstructive sleep apnoea 2021 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 122 participants
  Very low

Continuous positive airway pressure (CPAP) vs no CPAP

• Non‐invasive positive airway pressure therapy for improving erectile dysfunction in men with obstructive sleep apnoea 2021 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 57 participants
  Very low

Adaptive servo ventilation (ASV) vs continuous positive airway pressure (CPAP)

• Non‐invasive positive pressure ventilation for central sleep apnoea in adults 2022 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  Very low

Individual level interventions vs control

The review found no eligible studies for this question.

• Individual‐level interventions to reduce personal exposure to outdoor air pollution and their effects on people with… 2021 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Tiotropium vs ipratropium

• Tiotropium versus ipratropium bromide for chronic obstructive pulmonary disease 2015 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 535 participants
  Moderate

Tiotropium vs placebo

Tiotropium showed no clear difference in quality of life (SGRQ) Scale 0 to 100, where 100 represents worst… compared with placebo (high certainty).

• Tiotropium versus placebo for chronic obstructive pulmonary disease 2014 · Cochrane Headline outcomes only
  no estimate extracted
  9 studies · 13034 participants
  High

Adaptive servo ventilation (ASV) vs bilevel ventilation

The review found no eligible studies for this question.

• Non‐invasive positive pressure ventilation for central sleep apnoea in adults 2022 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found
• Non‐invasive positive pressure ventilation for central sleep apnoea in adults 2022 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Summary of findings table ‐ immunostimulant vs placebo

• Immunostimulants versus placebo for preventing exacerbations in adults with chronic bronchitis or chronic obstructive… 2022 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 617 participants
  Very low

Bi‐PAP vs fixed CPAP

• Pressure modification or humidification for improving usage of continuous positive airway pressure machines in adults… 2019 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 151 participants
  Low

Heated humidification + fixed CPAP vs fixed CPAP

The review found no eligible studies for this question.

• Pressure modification or humidification for improving usage of continuous positive airway pressure machines in adults… 2019 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Auto‐CPAP vs fixed CPAP

• Pressure modification or humidification for improving usage of continuous positive airway pressure machines in adults… 2019 · Cochrane Headline outcomes only
  no estimate extracted
  3 studies · 352 participants
  Low

Adaptive servo ventilation (ASV) vs continuous positive airway pressure (CPAP)

• Non‐invasive positive pressure ventilation for central sleep apnoea in adults 2022 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  Low

Intermittent ICS vs placebo

• Intermittent inhaled corticosteroid therapy versus placebo for persistent asthma in children and adults 2015 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 143 participants
  Low

Positional therapy vs continuous positive airway pressure (CPAP)

• Positional therapy for obstructive sleep apnoea 2019 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 20 participants
  Low