Cochrane · systematic review · CD000238
Ambulatory oxygen for people with chronic obstructive pulmonary disease who are not hypoxaemic at rest
Ameer, F, Carson, KV, Usmani, ZA, et al. · Cochrane Database of Systematic Reviews · 2014 · Cochrane Library
AirwaysAMSTAR 2: not assessed
SoF tableOnly the outcomes this review put in its Summary of Findings table are listed (the Cochrane Handbook caps them at about seven per comparison). Its other analyses are not shown here.
Questions
6
current version
GRADE rated
3
No studies
0
Included studies
NR
No studies 0 · 0%Ungraded 3 · 50%Very low 0 · 0%Low 1 · 16.7%Moderate 2 · 33.3%High 0 · 0%
Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.
Questions and results
Ambulatory oxygen for COPD
Population: adults with COPD who had exertional dyspnoea but did not fulfil the criteria for long‐term oxygen treatment
| Outcome | Effect | Evidence | Status / GRADE |
|---|---|---|---|
Exercise capacity (5‐ or 6‐minute walking distance on cylinder air) | no estimate extracted | 4 studies · 331 participants | Ungraded |
Mortality | RR 4.17 [0.48, 36.3] | 2 studies · 179 participants | Moderate Downgraded: risk of bias, imprecision |
Quality of life (dyspnoea) Measured on the CRQ, the output is a number from 0 to 7, where higher on the scale is better. MID is 0.5. | MD 0.28 [0.1, 0.45] | 4 studies · 341 participants | Moderate Downgraded: risk of bias, imprecision |
Dyspnoea | no estimate extracted | 3 studies · 198 participants | Ungraded |
Adverse events | OR 0.77 [0.21, 2.81] | 2 studies · 83 participants | Low Downgraded: imprecision |
Hospitalisations | no estimate extracted | 0 studies · 0 participants | Ungraded |