Cochrane · systematic review · CD013441

Individual‐level interventions to reduce personal exposure to outdoor air pollution and their effects on people with long‐term respiratory conditions

Janjua, S, Powell, P, Atkinson, R, et al. · Cochrane Database of Systematic Reviews · 2021 · 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
5
current version
GRADE rated
2
No studies
3
Included studies
NR
No studies 3 · 60%Ungraded 0 · 0%Very low 2 · 40%Low 0 · 0%Moderate 0 · 0%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

Individual level interventions vs control

Population: healthy individuals and those with a pre‐existing health condition
5 questions
OutcomeEffectEvidenceStatus / GRADE
Measures of air pollution exposure (
Individual level interventions vs control
no estimate extracted173 participantsVery low
Downgraded: risk of bias, imprecision, inconsistency
Health care usage (
Individual level interventions vs control
no estimate extracted2948 participantsVery low
Downgraded: risk of bias, imprecision, inconsistency
Respiratory exacerbations
Individual level interventions vs control
no estimate extractedNRNo studies
Quality of life
Individual level interventions vs control
no estimate extractedNRNo studies
Serious adverse events
Individual level interventions vs control
no estimate extractedNRNo studies